Ultrasonograpgy
•Download as PPTX, PDF•
0 likes•44 views
Presentation about Basics of Ultrasound machine, it's working principle, Block diagram, General problems, plan-preventive and breakdown maintenance
Report
Share
Report
Share
Recommended
Sonography
Ultrasound uses high frequency sound waves to produce images of structures inside the body. It has several advantages over other imaging modalities like having no known long term side effects, being widely available, and being relatively inexpensive. Ultrasound works by using a transducer to send sound waves into the body which bounce off tissues and organs and are received by the transducer. The echoes are used to form images on screen in real time. While it is good for imaging soft tissues, ultrasound has limitations penetrating bone and imaging deep structures or when gas is present between the transducer and area of interest. It also requires an experienced operator to get high quality images.
ANESTHESIA for MRI procedures
Basic principles of MRI machine. effect of mri on monitoring equipments in anesthesia. modes of anesthesia for MRI procedures.safety measures to be taken for MRI procedures
Basics of Ultrasound
Ultrasound uses high-frequency sound waves to produce images of the inside of the body in real-time without using radiation. It is widely used due to its availability, low cost, speed, and ability to show internal structures and blood flow. Common uses include examining organs like the heart, liver, and kidneys, as well as guiding procedures, imaging breasts and blood vessels, and assessing fetal development in pregnancies. The procedure works by a transducer sending sound waves into the body and receiving echoes to create images based on the return signal.
Medical linear accelerator
A linear accelerator uses high-frequency electromagnetic waves to accelerate charged particles like electrons in a linear path inside an accelerator waveguide. It can be used to treat both superficial and deep-seated tumors by either using the high-energy electron beam directly or by directing it at a target to produce x-rays. The first medical linear accelerators were installed in the early 1950s and since then the technology has advanced through multiple generations with improved waveguides, bending magnets, dose rates and computer control.
Basics of Ultrasound
• What is Ultrasound imaging?
• Why Ultrasound?
• Common Uses
• History
• Properties of Ultrasound
• Equipment types
• How does the procedure work?
• Physics
• Benefits and Risks etc.
MRI Safety Basics
This document discusses safety considerations for working with MRI machines. It covers several topics:
1. The static magnetic field of an MRI is extremely strong, around 30,000 times stronger than Earth's magnetic field. As a result, there are biological and mechanical risks from the magnetic field.
2. There are different safety zones around an MRI machine, with the innermost zone only allowing screened patients and personnel. Various instructions are provided to patients regarding removing all metal objects before an MRI scan.
3. Both patients and personnel must be screened for any metal implants or other factors that could pose a risk during a scan. Certain metals are considered MRI-safe but patients should always check with a technologist about any objects
Usg applications in anaesthesia dr gs
Ultrasound Basics, Troubleshooting And Outline Of Uses In Anaesthesia is a presentation that covers:
1) The history, physics, and interactions of ultrasound waves including how ultrasound machines work and form images.
2) Current and potential applications of ultrasound in anesthesiology such as regional anesthesia, vascular access, airway assessment, and focused cardiac ultrasound.
3) An overview of ultrasound uses including lung, gastric, and cardiac ultrasound as well as emerging technologies.
MRI Procedure and Preparation
An MRI scan is a painless procedure that uses magnetic fields and radio waves to produce detailed images of organs and tissues. Preparation may involve changing into loose, metal-free clothing and avoiding food, drink, smoking, and medications containing caffeine for several hours prior. During the scan, the patient lies still inside the MRI machine while images are taken, which can take 15-90 minutes. After the scan, the patient can resume normal activities unless sedated, in which case they should avoid driving or drinking for 24 hours.
Recommended
Sonography
Ultrasound uses high frequency sound waves to produce images of structures inside the body. It has several advantages over other imaging modalities like having no known long term side effects, being widely available, and being relatively inexpensive. Ultrasound works by using a transducer to send sound waves into the body which bounce off tissues and organs and are received by the transducer. The echoes are used to form images on screen in real time. While it is good for imaging soft tissues, ultrasound has limitations penetrating bone and imaging deep structures or when gas is present between the transducer and area of interest. It also requires an experienced operator to get high quality images.
ANESTHESIA for MRI procedures
Basic principles of MRI machine. effect of mri on monitoring equipments in anesthesia. modes of anesthesia for MRI procedures.safety measures to be taken for MRI procedures
Basics of Ultrasound
Ultrasound uses high-frequency sound waves to produce images of the inside of the body in real-time without using radiation. It is widely used due to its availability, low cost, speed, and ability to show internal structures and blood flow. Common uses include examining organs like the heart, liver, and kidneys, as well as guiding procedures, imaging breasts and blood vessels, and assessing fetal development in pregnancies. The procedure works by a transducer sending sound waves into the body and receiving echoes to create images based on the return signal.
Medical linear accelerator
A linear accelerator uses high-frequency electromagnetic waves to accelerate charged particles like electrons in a linear path inside an accelerator waveguide. It can be used to treat both superficial and deep-seated tumors by either using the high-energy electron beam directly or by directing it at a target to produce x-rays. The first medical linear accelerators were installed in the early 1950s and since then the technology has advanced through multiple generations with improved waveguides, bending magnets, dose rates and computer control.
Basics of Ultrasound
• What is Ultrasound imaging?
• Why Ultrasound?
• Common Uses
• History
• Properties of Ultrasound
• Equipment types
• How does the procedure work?
• Physics
• Benefits and Risks etc.
MRI Safety Basics
This document discusses safety considerations for working with MRI machines. It covers several topics:
1. The static magnetic field of an MRI is extremely strong, around 30,000 times stronger than Earth's magnetic field. As a result, there are biological and mechanical risks from the magnetic field.
2. There are different safety zones around an MRI machine, with the innermost zone only allowing screened patients and personnel. Various instructions are provided to patients regarding removing all metal objects before an MRI scan.
3. Both patients and personnel must be screened for any metal implants or other factors that could pose a risk during a scan. Certain metals are considered MRI-safe but patients should always check with a technologist about any objects
Usg applications in anaesthesia dr gs
Ultrasound Basics, Troubleshooting And Outline Of Uses In Anaesthesia is a presentation that covers:
1) The history, physics, and interactions of ultrasound waves including how ultrasound machines work and form images.
2) Current and potential applications of ultrasound in anesthesiology such as regional anesthesia, vascular access, airway assessment, and focused cardiac ultrasound.
3) An overview of ultrasound uses including lung, gastric, and cardiac ultrasound as well as emerging technologies.
MRI Procedure and Preparation
An MRI scan is a painless procedure that uses magnetic fields and radio waves to produce detailed images of organs and tissues. Preparation may involve changing into loose, metal-free clothing and avoiding food, drink, smoking, and medications containing caffeine for several hours prior. During the scan, the patient lies still inside the MRI machine while images are taken, which can take 15-90 minutes. After the scan, the patient can resume normal activities unless sedated, in which case they should avoid driving or drinking for 24 hours.
Radiation protection course for radiologists L8
Radiation Protection Course For Radiologists
Lecture 8 of 8
Procedures for Minimizing Dose to Patients And X-ray Personnel
What is ultrasound
Ultrasound machines use high-frequency sound waves to safely produce images of internal organs and tissues without using harmful radiation. The machines emit ultrasound pulses that bounce off tissues and are detected to generate live images on a screen. While initially used mainly for obstetric imaging, ultrasound is now widely used by doctors to examine many organs and guide procedures, making it a highly cost-effective diagnostic tool. When operated by trained technicians, ultrasound is considered very safe due to its non-ionizing pulses and short exposure times.
Fluoroscopy ppt
Fluoroscopy is an imaging technique that uses x-rays to obtain real-time moving images of the internal structures of the body. It allows physicians to see how body parts move and to guide placement of instruments or injection of dye. The fluoroscopy machine takes a continuous stream of x-ray images at a rate of approximately 25-30 images per second which are displayed on a monitor. While it is useful for various medical procedures, fluoroscopy does expose patients to radiation, so the benefits must outweigh the small risk of developing cancer or experiencing burns from prolonged exposure. Precise procedures and consideration of radiation exposure help minimize risks.
Mri safety
This document discusses MRI safety, providing a brief history and overview of MRI components. It outlines the different MRI safety zones and the use of Faraday cages for shielding. Major accidents that have occurred are described, such as one caused by a metal oxygen tank. The document stresses preventing accidents through patient screening, warning signs, and informed consent regarding any metallic implants.
9 ultrasound part i (2)
This document provides an overview of therapeutic ultrasound. It defines ultrasound as a mechanical wave with frequencies too high for human hearing. Ultrasound is generated using piezoelectric crystals that convert electrical oscillations to mechanical vibrations. As ultrasound propagates through tissues, it undergoes attenuation and is absorbed differently based on tissue properties. Pulsed ultrasound is commonly used to allow time for heat dissipation between pulses. Key physical phenomena like reflection, refraction, and absorption influence how ultrasound is transmitted and interacts with tissues.
Principle of Ultrasound Imaging
This document summarizes a presentation given by Kevin Parker on rapid advances in medical ultrasound. It discusses how ultrasound technology is becoming cheaper, faster, and better through advances like Moore's law that have allowed for the miniaturization of ultrasound components. It describes new portable ultrasound systems and the development of nonlinear imaging techniques that have improved image quality. The document also discusses emerging techniques like elasticity imaging that use ultrasound to assess tissue stiffness and detect tumors, as well as potential new applications in drug delivery guided by ultrasound.
Ultrasonic generation-and-its-application
This document discusses ultrasonic waves, which are sound waves with frequencies above the normal hearing range of humans. It describes how ultrasonic waves are generated using piezoelectric and magnetostriction oscillators. The properties and applications of ultrasonic waves are then outlined, including using them to detect flaws in metals, measure distances, determine ocean depths, cut and weld metals, and for medical uses like removing kidney stones. The document concludes that ultrasonic technology is used widely across various fields like medicine, testing products, cleaning, and by some animals.
Components of X-Ray Machine
This document summarizes the key components of an X-ray system, including the operating console, high frequency generator, and X-ray tube. It describes the internal parts of the X-ray tube, such as the cathode and anode. Additional parts that help form X-ray images like the collimator, grid, and bucky are also outlined. Finally, some common medical uses of X-rays like detecting broken bones or cancer are mentioned.
Ultrasound Transducer Types
Learn from our Slideshare about the differences between ultrasound transducers. We also cover tips on how to treat your probes and how to select the right one.
Ultra Sound Imaging
This ppt describes basic principles of Ultra Sound Imaging. Advantages, Applications, limitations and modes of operations are also included.
Fluoroscopy
Fluoroscopy uses X-rays to produce moving images of organs and allows physicians to examine how organs function in real-time. It differs from traditional X-rays by using an image intensifier to amplify the X-ray signals into visible light images that can be viewed continuously during medical procedures. Fluoroscopy is invaluable for examining involuntary organs and is widely used in procedures like barium X-rays, cardiac catheterization, and arthrography to visualize organ function and guide placement of medical devices.
Ultrasonography
Ultrasound imaging uses high-frequency sound waves to capture live images of the inside of the body. It involves a transducer probe that sends sound waves into the body and receives echoes to form images. The central processing unit processes the echo data and displays the images. There are different types of ultrasound including Doppler ultrasound which measures blood flow, and 3D ultrasound which constructs 3D volume images from multiple angles.
General-Purpose Ultrasound
The document discusses general-purpose ultrasound scanners used in hospitals. It describes the key components of an ultrasound system including the transducer probe, ultrasound monitor, and image storage system. It explains the imaging principles of ultrasound, how ultrasound waves are transmitted and reflected at tissue interfaces depending on acoustic impedance, and how the reflected echoes are used to generate images. It also outlines different types of ultrasound scanners and transducers as well as imaging modes.
ultrasound in dentistry
1) Ultrasound uses high frequency sound waves to produce images of structures inside the body. It was introduced in the 1950s and has improved medical diagnosis. It is now also used in dentistry.
2) Ultrasound works by transmitting sound waves into the body via a transducer. Echoes from tissue interfaces are detected and displayed as images. Different transducer shapes produce different image scans for small parts, vascular, and obstetric applications.
3) Therapeutic ultrasound uses lower intensities to increase blood flow, reduce muscle spasm, and accelerate healing. It has applications in temporomandibular joint disorders, bone healing, extracorporeal lithotripsy, and accelerating wound repair
Usg Basics
This document provides an overview of ultrasound physics basics. It discusses how ultrasound uses sound waves between 10-20 MHz to generate images. Sound waves are longitudinal waves that travel through materials at different speeds depending on compressibility and density. Ultrasound imaging works by transmitting pulses into the body and receiving echoes, with transducers converting between electrical and sound signals. Factors like frequency, beam characteristics, and tissue interactions impact the resulting images and potential artifacts. Understanding ultrasound physics principles is important for optimizing scans and interpreting images.
Ultrasonography - History, evolution and principles
This document provides an overview of ultrasound imaging and its applications in head and neck imaging. It discusses the history and evolution of ultrasound from its origins in sonar to modern medical applications. The basic physics of ultrasound such as piezoelectricity and acoustic impedance are explained. The document outlines the components of an ultrasound machine and different imaging modes. Finally, it demonstrates how ultrasound can be used to visualize normal head and neck anatomy and diagnose various pathologies.
Types of transducers in ultrasound diagnostic
Ultrasound transducers come in different shapes and sizes depending on their intended use. The main types are linear transducers, convex transducers, phased array transducers, pencil transducers, endocavitary transducers, and transesophageal transducers. Each has a distinct piezoelectric crystal arrangement and frequency that makes it suited for specific applications like abdominal, cardiac, or fetal examinations. 4D transducers allow for live 3D imaging of motion.
Basics of Diagnostic Ultrasound
This document discusses diagnostic ultrasound, including the physics, principles, equipment, and applications. It covers how ultrasound works by generating high-frequency sound waves that reflect off tissues. Transducers convert electrical signals to ultrasound and vice versa. Different probe types exist for various body areas. Ultrasound is used to image anatomy in multiple modes and to assess blood flow dynamics. It has wide medical applications like obstetrics, cardiology, and vascular imaging to evaluate organs, diagnose conditions, and guide procedures.
PPT of X Ray
1. X-rays were discovered in 1895 by Wilhelm Röntgen, a German physicist, while experimenting with cathode ray tubes. He noticed that materials near the tube would glow, even when shielded from known radiation sources, and concluded he had discovered a new type of radiation which he named X-rays.
2. X-rays are produced when high-energy electrons collide with a metal target, causing the electrons to lose energy which is released as X-ray photons. Modern X-ray tubes contain a tungsten target and operate by accelerating electrons toward the target with a high voltage.
3. X-rays have wavelengths between 10 picometers to 10 nanometers, shorter than visible light.
Ultrasonic sound
Ultrasonic sound refers to sound waves with a frequency greater than the upper limit of human hearing. Ultrasound has a variety of uses including medical imaging, detection, measurement, and cleaning. Bats, dolphins, and some animals can perceive ultrasound due to their ability to hear very high frequency sounds, which they use for echolocation and navigation. Detection and ranging applications of ultrasound include non-contact sensors, non-destructive testing, sonar for underwater range finding, and medical ultrasonography.
Ultrasound
Ultrasound imaging uses high-frequency sound waves to produce real-time images of the inside of the body without exposing the patient to radiation. It is a widely used and low-cost imaging method applied in areas like obstetrics, cardiology, and internal medicine. The document discusses how ultrasound works, describing how sound waves bounce off tissues and organs to create images, and Doppler ultrasound's use of the Doppler effect to evaluate blood flow. It outlines the procedure, equipment, advantages like safety and availability, and limitations like difficulty imaging air or bone.
Ultrasonography final
Ultrasound uses high-frequency sound waves to create images of the inside of the body. It works by transmitting sound pulses into the body using a probe. When the pulses hit boundaries between tissues, some of the sound waves are reflected back to the probe. The machine calculates the distance to tissues and organs based on the speed of sound and time of the echo returns, forming a 2D image. Common medical uses of ultrasound include imaging organs in the abdomen and monitoring fetuses during pregnancy.
More Related Content
What's hot
Radiation protection course for radiologists L8
Radiation Protection Course For Radiologists
Lecture 8 of 8
Procedures for Minimizing Dose to Patients And X-ray Personnel
What is ultrasound
Ultrasound machines use high-frequency sound waves to safely produce images of internal organs and tissues without using harmful radiation. The machines emit ultrasound pulses that bounce off tissues and are detected to generate live images on a screen. While initially used mainly for obstetric imaging, ultrasound is now widely used by doctors to examine many organs and guide procedures, making it a highly cost-effective diagnostic tool. When operated by trained technicians, ultrasound is considered very safe due to its non-ionizing pulses and short exposure times.
Fluoroscopy ppt
Fluoroscopy is an imaging technique that uses x-rays to obtain real-time moving images of the internal structures of the body. It allows physicians to see how body parts move and to guide placement of instruments or injection of dye. The fluoroscopy machine takes a continuous stream of x-ray images at a rate of approximately 25-30 images per second which are displayed on a monitor. While it is useful for various medical procedures, fluoroscopy does expose patients to radiation, so the benefits must outweigh the small risk of developing cancer or experiencing burns from prolonged exposure. Precise procedures and consideration of radiation exposure help minimize risks.
Mri safety
This document discusses MRI safety, providing a brief history and overview of MRI components. It outlines the different MRI safety zones and the use of Faraday cages for shielding. Major accidents that have occurred are described, such as one caused by a metal oxygen tank. The document stresses preventing accidents through patient screening, warning signs, and informed consent regarding any metallic implants.
9 ultrasound part i (2)
This document provides an overview of therapeutic ultrasound. It defines ultrasound as a mechanical wave with frequencies too high for human hearing. Ultrasound is generated using piezoelectric crystals that convert electrical oscillations to mechanical vibrations. As ultrasound propagates through tissues, it undergoes attenuation and is absorbed differently based on tissue properties. Pulsed ultrasound is commonly used to allow time for heat dissipation between pulses. Key physical phenomena like reflection, refraction, and absorption influence how ultrasound is transmitted and interacts with tissues.
Principle of Ultrasound Imaging
This document summarizes a presentation given by Kevin Parker on rapid advances in medical ultrasound. It discusses how ultrasound technology is becoming cheaper, faster, and better through advances like Moore's law that have allowed for the miniaturization of ultrasound components. It describes new portable ultrasound systems and the development of nonlinear imaging techniques that have improved image quality. The document also discusses emerging techniques like elasticity imaging that use ultrasound to assess tissue stiffness and detect tumors, as well as potential new applications in drug delivery guided by ultrasound.
Ultrasonic generation-and-its-application
This document discusses ultrasonic waves, which are sound waves with frequencies above the normal hearing range of humans. It describes how ultrasonic waves are generated using piezoelectric and magnetostriction oscillators. The properties and applications of ultrasonic waves are then outlined, including using them to detect flaws in metals, measure distances, determine ocean depths, cut and weld metals, and for medical uses like removing kidney stones. The document concludes that ultrasonic technology is used widely across various fields like medicine, testing products, cleaning, and by some animals.
Components of X-Ray Machine
This document summarizes the key components of an X-ray system, including the operating console, high frequency generator, and X-ray tube. It describes the internal parts of the X-ray tube, such as the cathode and anode. Additional parts that help form X-ray images like the collimator, grid, and bucky are also outlined. Finally, some common medical uses of X-rays like detecting broken bones or cancer are mentioned.
Ultrasound Transducer Types
Learn from our Slideshare about the differences between ultrasound transducers. We also cover tips on how to treat your probes and how to select the right one.
Ultra Sound Imaging
This ppt describes basic principles of Ultra Sound Imaging. Advantages, Applications, limitations and modes of operations are also included.
Fluoroscopy
Fluoroscopy uses X-rays to produce moving images of organs and allows physicians to examine how organs function in real-time. It differs from traditional X-rays by using an image intensifier to amplify the X-ray signals into visible light images that can be viewed continuously during medical procedures. Fluoroscopy is invaluable for examining involuntary organs and is widely used in procedures like barium X-rays, cardiac catheterization, and arthrography to visualize organ function and guide placement of medical devices.
Ultrasonography
Ultrasound imaging uses high-frequency sound waves to capture live images of the inside of the body. It involves a transducer probe that sends sound waves into the body and receives echoes to form images. The central processing unit processes the echo data and displays the images. There are different types of ultrasound including Doppler ultrasound which measures blood flow, and 3D ultrasound which constructs 3D volume images from multiple angles.
General-Purpose Ultrasound
The document discusses general-purpose ultrasound scanners used in hospitals. It describes the key components of an ultrasound system including the transducer probe, ultrasound monitor, and image storage system. It explains the imaging principles of ultrasound, how ultrasound waves are transmitted and reflected at tissue interfaces depending on acoustic impedance, and how the reflected echoes are used to generate images. It also outlines different types of ultrasound scanners and transducers as well as imaging modes.
ultrasound in dentistry
1) Ultrasound uses high frequency sound waves to produce images of structures inside the body. It was introduced in the 1950s and has improved medical diagnosis. It is now also used in dentistry.
2) Ultrasound works by transmitting sound waves into the body via a transducer. Echoes from tissue interfaces are detected and displayed as images. Different transducer shapes produce different image scans for small parts, vascular, and obstetric applications.
3) Therapeutic ultrasound uses lower intensities to increase blood flow, reduce muscle spasm, and accelerate healing. It has applications in temporomandibular joint disorders, bone healing, extracorporeal lithotripsy, and accelerating wound repair
Usg Basics
This document provides an overview of ultrasound physics basics. It discusses how ultrasound uses sound waves between 10-20 MHz to generate images. Sound waves are longitudinal waves that travel through materials at different speeds depending on compressibility and density. Ultrasound imaging works by transmitting pulses into the body and receiving echoes, with transducers converting between electrical and sound signals. Factors like frequency, beam characteristics, and tissue interactions impact the resulting images and potential artifacts. Understanding ultrasound physics principles is important for optimizing scans and interpreting images.
Ultrasonography - History, evolution and principles
This document provides an overview of ultrasound imaging and its applications in head and neck imaging. It discusses the history and evolution of ultrasound from its origins in sonar to modern medical applications. The basic physics of ultrasound such as piezoelectricity and acoustic impedance are explained. The document outlines the components of an ultrasound machine and different imaging modes. Finally, it demonstrates how ultrasound can be used to visualize normal head and neck anatomy and diagnose various pathologies.
Types of transducers in ultrasound diagnostic
Ultrasound transducers come in different shapes and sizes depending on their intended use. The main types are linear transducers, convex transducers, phased array transducers, pencil transducers, endocavitary transducers, and transesophageal transducers. Each has a distinct piezoelectric crystal arrangement and frequency that makes it suited for specific applications like abdominal, cardiac, or fetal examinations. 4D transducers allow for live 3D imaging of motion.
Basics of Diagnostic Ultrasound
This document discusses diagnostic ultrasound, including the physics, principles, equipment, and applications. It covers how ultrasound works by generating high-frequency sound waves that reflect off tissues. Transducers convert electrical signals to ultrasound and vice versa. Different probe types exist for various body areas. Ultrasound is used to image anatomy in multiple modes and to assess blood flow dynamics. It has wide medical applications like obstetrics, cardiology, and vascular imaging to evaluate organs, diagnose conditions, and guide procedures.
PPT of X Ray
1. X-rays were discovered in 1895 by Wilhelm Röntgen, a German physicist, while experimenting with cathode ray tubes. He noticed that materials near the tube would glow, even when shielded from known radiation sources, and concluded he had discovered a new type of radiation which he named X-rays.
2. X-rays are produced when high-energy electrons collide with a metal target, causing the electrons to lose energy which is released as X-ray photons. Modern X-ray tubes contain a tungsten target and operate by accelerating electrons toward the target with a high voltage.
3. X-rays have wavelengths between 10 picometers to 10 nanometers, shorter than visible light.
Ultrasonic sound
Ultrasonic sound refers to sound waves with a frequency greater than the upper limit of human hearing. Ultrasound has a variety of uses including medical imaging, detection, measurement, and cleaning. Bats, dolphins, and some animals can perceive ultrasound due to their ability to hear very high frequency sounds, which they use for echolocation and navigation. Detection and ranging applications of ultrasound include non-contact sensors, non-destructive testing, sonar for underwater range finding, and medical ultrasonography.
What's hot (20)
Ultrasonography - History, evolution and principles
Ultrasonography - History, evolution and principles
Similar to Ultrasonograpgy
Ultrasound
Ultrasound imaging uses high-frequency sound waves to produce real-time images of the inside of the body without exposing the patient to radiation. It is a widely used and low-cost imaging method applied in areas like obstetrics, cardiology, and internal medicine. The document discusses how ultrasound works, describing how sound waves bounce off tissues and organs to create images, and Doppler ultrasound's use of the Doppler effect to evaluate blood flow. It outlines the procedure, equipment, advantages like safety and availability, and limitations like difficulty imaging air or bone.
Ultrasonography final
Ultrasound uses high-frequency sound waves to create images of the inside of the body. It works by transmitting sound pulses into the body using a probe. When the pulses hit boundaries between tissues, some of the sound waves are reflected back to the probe. The machine calculates the distance to tissues and organs based on the speed of sound and time of the echo returns, forming a 2D image. Common medical uses of ultrasound include imaging organs in the abdomen and monitoring fetuses during pregnancy.
Introduction to ultrasound & regional anesthesia
Ultrasound is used to guide regional anesthesia by visualizing anatomical structures and needle placement. The document discusses ultrasound image generation, modes, tissue appearance, artifacts, and techniques for brachial plexus blocks. Safety guidelines are outlined, including recommendations to inject local anesthetic under direct ultrasound visualization and consider nerve stimulation to confirm needle position. Complications like nerve injury, local anesthetic toxicity, and pneumothorax are addressed.
ultrasonography.pptx
Ultrasound uses high-frequency sound waves to produce images of the inside of the body. It can be used to examine many different organs and tissues, providing real-time images of both structure and function. The document discusses key aspects of ultrasound such as the different display modes including A-mode, B-mode, and M-mode. It also covers topics like how ultrasound works, its use in medical applications, safety, and important terminology.
ULTRASOUND BY DR.ABHIJEET MAJHI,MS .pptx
Ultrasound uses high-frequency sound waves to produce images of the inside of the body. It has several medical uses including scanning fetuses, viewing organs for abnormalities, and guiding procedures. During an exam, gel is applied and a transducer sends pulses into the body. The echoes are converted into images that can evaluate things like blood flow, organ size, and gallstones. Different transducer types exist for various applications. Ultrasound is safe, non-invasive, and does not use ionizing radiation. Artifacts can occur and need to be distinguished from actual anatomy. Overall, ultrasound provides information to diagnose a variety of conditions.
ultrasound JP.pptx
Ultrasound uses high-frequency sound waves to produce images of the inside of the body. It can be used to examine many organs and tissues, as well as to guide needle biopsies. Ultrasound works by sending sound waves into the body with a transducer and measuring the echoes produced when they bounce off tissues and organs. Different echo patterns allow the visualization of both structure and movement within the body in real-time. While it provides many advantages like being non-invasive and having no known health risks, ultrasound has limitations such as poor penetration of bone or air and operator dependence.
Ultrasound-1.pptx
This document provides information about ultrasound imaging, including:
- Ultrasound uses high-frequency sound waves to produce images of the inside of the body without radiation.
- It is widely used due to its availability, low cost, speed, and ability to image in real-time.
- Common uses include imaging organs like the heart, liver, kidneys, and monitoring fetal development.
- The procedure involves a transducer sending sound waves into the body and receiving echoes to produce images.
UltraSound.pptx
Ultrasound imaging uses high-frequency sound waves to produce images of the inside of the body without using ionizing radiation. It is widely used due to its availability, low cost, speed, and ability to show real-time images of internal organs and blood flow. Common uses of ultrasound include examining organs like the heart, liver, kidneys, and in pregnancy, the fetus. While it has advantages like being painless and having no radiation, disadvantages include limited ability in obese patients and issues with air blocking the sound waves.
Theraputic ultrasound
Therapeutic ultrasound uses high frequency sound waves to produce effects in the body. It is generated using piezoelectric crystals that vibrate when electric current is applied. Ultrasound has various physiological effects including chemical reactions, increased permeability, cavitation, and heat. It is used clinically by applying ultrasound gel and transducer to the skin to produce effects like reduced edema and increased tendon flexibility. Precautions must be taken with open wounds, impaired sensation, pregnancy, and other conditions. Contraindications include pregnancy, metastasis, and lack of sensation.
ULTRA.pptx
This document provides an overview of ultrasonography principles:
- Ultrasonography uses high-frequency sound waves to generate images and is a useful, noninvasive diagnostic tool.
- Sound waves have properties like frequency, wavelength, and velocity that affect image quality. Higher frequencies produce better surface details but poorer penetration.
- Images are produced when sound waves emitted from a transducer's piezoelectric crystals enter the body, encounter tissues, and return echoes that are converted into a visual display.
- Different transducer types and ultrasound modes like B-mode produce various image types used for diagnostic purposes. Artifacts like shadows and reverberations can occur and should be recognized to avoid diagnostic errors.
AN OVERVIEW OF ULTRASOUND.pptx
Ultrasound uses sound waves with frequencies higher than the upper audible limit of human hearing. It has various applications in medicine such as obstetric sonography, echocardiography, and ultrasonography to guide procedures. Ultrasonic testing is also used for nondestructive testing to find flaws in materials and measure object thickness without using radiation. Ultrasound is produced using piezoelectric or magnetostriction oscillators that generate high frequency vibrations using crystals or ferromagnetic rods under varying electric fields.
Ultrasound
Ultrasound uses high frequency sound waves to create images of structures inside the body. It is a non-invasive diagnostic technique that can be used to examine many organs and tissues, including the thyroid, heart, liver, kidneys, muscles, and unborn fetus. Ultrasound works by transmitting sound waves from a transducer into the body, which are reflected back to the transducer to create images based on differences in tissue density and depth. It has advantages over other imaging methods in that it is safe, requires no radiation exposure or invasive procedures, and can provide real-time visualization of moving structures.
Physical Principles Of Ultrasound
This document discusses the physical principles of ultrasound used in medical imaging. It defines key terms like frequency, wavelength, attenuation and resolution. It describes how piezoelectric transducers convert electrical pulses to ultrasound pulses and echoes. It explains how sector and linear array transducers work and the different display modes. It also discusses artifacts and the safety of diagnostic medical ultrasound.
Us machine
This document summarizes the key components and functioning of an ultrasound machine. It discusses how ultrasound machines use piezoelectric transducers to both transmit sound waves into the body and receive echoes. The echoes are processed by the machine's central processing unit and converted into images that are viewed on a monitor. Proper use of time gain compensation is important to produce images with uniform brightness from near to far field regions.
Usg
The document discusses the basic components and functioning of an ultrasound machine. It describes the transmitter/pulser, transducer, receiver and processor, display, and recording components. The transducer is made of piezoelectric crystals and converts electrical energy to ultrasound energy and vice versa. Different controls like gain, zoom, and Doppler are used by the radiographer to optimize the ultrasound image.
Ultrasound instrumentation practical applications
This document discusses various topics related to ultrasound imaging including goals, early pioneers, transducer types, Doppler instrumentation and physics, harmonic imaging, spatial compounding, extended field of view, fusion imaging, 3D and 4D ultrasound, and contrast enhanced ultrasound. It provides details on transducer selection, control settings, tissue harmonic imaging principles, spatial compounding benefits, fusion imaging steps, and contrast agent interactions.
Ultrasound Physics Jr.pptx
Ultrasound is produced by piezoelectric crystals in transducers that convert electrical pulses into sound waves and received echoes into electrical signals. Transducers operate in shock, burst, or continuous excitation modes. The piezoelectric crystals resonate at specific frequencies determined by their thickness and composition. Damping materials in transducers shorten pulse duration to improve image resolution by reducing echo overlap. Transducers use the pulse-echo principle to transmit sound pulses into the body and receive returning echoes to create ultrasound images.
Ultrasound therapy
Ultrasound therapy uses high-frequency sound waves to treat soft tissue injuries and conditions. The document discusses the production of therapeutic ultrasound using piezoelectric crystals, its physical and physiological effects like thermal heating and non-thermal cavitation. Precautions are needed to avoid overheating tissues. Ultrasound enhances soft tissue repair and reduces pain and inflammation through thermal and non-thermal mechanisms. Common therapeutic uses include fracture healing and wound care. Proper application parameters and coupling agents are required to effectively deliver ultrasound to tissues.
Ultrasound Imaging_2023.pdf
Here are quick answers to the review questions:
1. Ultrasound is high frequency sound waves that travel well through soft tissues like muscles, organs and fat. It travels poorly through gas pockets or bones.
2. Higher frequency ultrasound has better resolution but poorer penetration. Lower frequency has poorer resolution but better penetration.
3. Pros of ultrasound include lack of radiation, quick exams, ability to see different tissue planes, portability and lower cost compared to other imaging modalities.
4. Probes come in linear, convex, sector and endocavity shapes. Linear probes have a rectangular footprint for long superficial structures. Convex probes have a curved footprint for abdominal exams. Sector probes have a wedge shape for
Ultrasound imaging
This document provides an overview of ultrasound imaging. It discusses how ultrasound is used in various medical specialties like internal medicine, radiology, surgery, and cardiology for diagnostic and therapeutic purposes. It explains the basic physics behind ultrasound including sound waves, transducers, interaction with tissues, and Doppler imaging. Modes of ultrasound like A-mode, B-mode, and M-mode are described. Clinical applications of ultrasound in areas like abdomen, superficial structures, gynecology, obstetrics, and neonatology are covered. Different types of ultrasound probes are also mentioned.
Similar to Ultrasonograpgy (20)
Recently uploaded
22CYT12-Unit-V-E Waste and its Management.ppt
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
AI assisted telemedicine KIOSK for Rural India.pptx
It gives the overall description of SIH problem statement " AI assisted telemedicine KIOSK for Rural India".
官方认证美国密歇根州立大学毕业证学位证书原版一模一样
原版一模一样【微信：741003700 】【美国密歇根州立大学毕业证学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
Software Engineering and Project Management - Introduction, Modeling Concepts...
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
Advanced control scheme of doubly fed induction generator for wind turbine us...
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Rainfall intensity duration frequency curve statistical analysis and modeling...
Using data from 41 years in Patna’ India’ the study’s goal is to analyze the trends of how often it rains on a weekly, seasonal, and annual basis (1981−2020). First, utilizing the intensity-duration-frequency (IDF) curve and the relationship by statistically analyzing rainfall’ the historical rainfall data set for Patna’ India’ during a 41 year period (1981−2020), was evaluated for its quality. Changes in the hydrologic cycle as a result of increased greenhouse gas emissions are expected to induce variations in the intensity, length, and frequency of precipitation events. One strategy to lessen vulnerability is to quantify probable changes and adapt to them. Techniques such as log-normal, normal, and Gumbel are used (EV-I). Distributions were created with durations of 1, 2, 3, 6, and 24 h and return times of 2, 5, 10, 25, and 100 years. There were also mathematical correlations discovered between rainfall and recurrence interval.
Findings: Based on findings, the Gumbel approach produced the highest intensity values, whereas the other approaches produced values that were close to each other. The data indicates that 461.9 mm of rain fell during the monsoon season’s 301st week. However, it was found that the 29th week had the greatest average rainfall, 92.6 mm. With 952.6 mm on average, the monsoon season saw the highest rainfall. Calculations revealed that the yearly rainfall averaged 1171.1 mm. Using Weibull’s method, the study was subsequently expanded to examine rainfall distribution at different recurrence intervals of 2, 5, 10, and 25 years. Rainfall and recurrence interval mathematical correlations were also developed. Further regression analysis revealed that short wave irrigation, wind direction, wind speed, pressure, relative humidity, and temperature all had a substantial influence on rainfall.
Originality and value: The results of the rainfall IDF curves can provide useful information to policymakers in making appropriate decisions in managing and minimizing floods in the study area.
学校原版美国波士顿大学毕业证学历学位证书原版一模一样
原版一模一样【微信：741003700 】【美国波士顿大学毕业证学历学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
BRAIN TUMOR DETECTION for seminar ppt.pdf
BRAIN TUMOR DETECTION
AND CLASSIFICATION USING
ARTIFICIAL INTELLIGENCE
cnn.pptx Convolutional neural network used for image classication
Convolutional Neural Network used for image classification
Recently uploaded (20)
Generative AI leverages algorithms to create various forms of content
Generative AI leverages algorithms to create various forms of content
Manufacturing Process of molasses based distillery ppt.pptx
Manufacturing Process of molasses based distillery ppt.pptx
4. Mosca vol I -Fisica-Tipler-5ta-Edicion-Vol-1.pdf
4. Mosca vol I -Fisica-Tipler-5ta-Edicion-Vol-1.pdf
AI assisted telemedicine KIOSK for Rural India.pptx
AI assisted telemedicine KIOSK for Rural India.pptx
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024
Software Engineering and Project Management - Introduction, Modeling Concepts...
Software Engineering and Project Management - Introduction, Modeling Concepts...
Advanced control scheme of doubly fed induction generator for wind turbine us...
Advanced control scheme of doubly fed induction generator for wind turbine us...
Rainfall intensity duration frequency curve statistical analysis and modeling...
Rainfall intensity duration frequency curve statistical analysis and modeling...
cnn.pptx Convolutional neural network used for image classication
cnn.pptx Convolutional neural network used for image classication
Ultrasonograpgy
- 1. ULTRASOU ND PRESENTED BY: • TOOBA TASNEEM (BM- 15030) • MEHWISH JALIL (BM- 15036) • SHAHBAZ SHOUKAT (BM- 15033) • WAJHEE UDDIN (BM- 15038)
- 2. INTRODUCTION • Ultrasound is a sound energy in the form of waves with a frequency higher then the human Audible range(20Hz- 20kHz). • Ultrasound is a way of using sound waves to look inside the Body • Use for diagnosis and treatment
- 3. WORKING PRINCIPLE • Ultrasound waves generates by vibrating crystal inside ceramic probe • Sound waves that travels towards tissue are partly reflected at each tissue interface • Piezo-electric principle: current cause crystal to vibrate, returning waves create electric current • Following phenomenon occur when ultrasound propagates for imaging Reflection Refraction Diffraction Scattering attenuation
- 5. MODES OF ULTRASOUND A-mode (A=Amplitude) The amplitude of reflected sound is displayed on an oscilloscope screen M-mode (M=Motion) It reflects the motion of the organ's structure e.g. heart over time due to its excellent temporal resolution. M mode is the most accurate mode among all
- 6. MODES OF ULTRASOUND B-mode (B=Brightness) Essential imaging modality in the diagnostic ultrasound. An amplitude of the reflected ultrasound signal is converted into a gray scale image D- mode (D=Doppler) This imaging mode is based on doppler's effect, change in frequency caused by the reciprocal movements of sound generator and the observer
- 7. GENERAL PROBLEMS • Probes problem • Ambient Temperature issue • Software issues • Sensitive to Noisy environment
- 8. MAINTENANCE • Preventive maintenance is not a big deal in this type of imaging modality as it is standalone system • It is good practice to properly calibrate after every six month • Clean all external surface and filters • Check system and power supply fans • Inspect system controls, power cords and cables for crack, cuts and wear
- 9. SAFETY AND PRECAUTIONS • Ultrasound is safe and painless • To minimize potential adverse health effects the operator should use minimum patient exposure required to achieve desired benefits • The transducer is to be at 90' during use and has to slowly move in order to minimize the risk of causing hot spots • If feel any pain during application remove the probe, it is due to over heartiness of tissues • Use the power source that has mentioned on
- 11. ANY QUESTION ? Think before speak, words can hurt!!
- 12. REFERENCES • MEDICAL IMGING BYHARRY LEVINE • https://www.slideshare.net/tharanathpp/ultrasound-imaging • https://www.nhs.uk/conditions/ultrasound-scan/ • FUNDAMENTAL OF MEDICAL IMAGING BY PAUL SUETENS • https://www.medicalnewstoday.com/articles/245491.php • https://www.captubes.com/safety.html