Rad 206 p05 Fundamentals of Imaging - Fluoroscopysehlawi
college of health sciences, fundamentals of imaging, image formation, radiography, radiologic, radiologic science, radiologic technologist, university of bahrain
The document discusses the history and components of fluoroscopy systems. Early fluoroscopy required complete darkness as it relied on rod vision, exposing patients and radiologists to high radiation. Modern systems use an image intensifier to amplify images 500-8000x, allowing viewing on a TV screen using cone vision with less radiation exposure. The image intensifier converts x-rays to light through an input phosphor, then light to electrons via a photocathode. Electrostatic lenses accelerate electrons onto an output phosphor, reconverting them to brighter light for display. Cesium iodide replaced earlier phosphors for better x-ray absorption and resolution.
This document provides an overview of the radiological anatomy of the upper limb. It includes images and descriptions of bones and joints in the shoulder, elbow, and wrist regions. The learning objectives are to identify bones and their parts on radiographs of the upper limb and explain the related applied anatomy. Images show normal anatomy as well as fractures and dislocations of the clavicle, shoulder, elbow, and wrist. Descriptions provide details on anatomical structures and landmarks visible in the radiographs.
Fluoroscopy is an imaging technique where an X-ray beam passes continuously through the body part being examined and is displayed in real-time motion on a monitor, allowing doctors to see internal structures like bones, organs, and muscles in detail as they move. It is used together with CT scans during procedures like barium X-rays to watch barium flow through the digestive system, cardiac catheterization to view blood flow and check for blockages in the heart arteries, and intravenous catheter insertion to guide placement of catheters in the body. The procedure involves low doses of ionizing radiation exposure over several minutes.
This presentation include biliary anatomy ,indication, contraindication post op care of percutaneus transhepatic biliary drainage with important technique. and advantage and disadvantage of different technique. This is important for radiologist, radiographers, intervention radiologist radiology resident. Thanks
Rad 206 p05 Fundamentals of Imaging - Fluoroscopysehlawi
college of health sciences, fundamentals of imaging, image formation, radiography, radiologic, radiologic science, radiologic technologist, university of bahrain
The document discusses the history and components of fluoroscopy systems. Early fluoroscopy required complete darkness as it relied on rod vision, exposing patients and radiologists to high radiation. Modern systems use an image intensifier to amplify images 500-8000x, allowing viewing on a TV screen using cone vision with less radiation exposure. The image intensifier converts x-rays to light through an input phosphor, then light to electrons via a photocathode. Electrostatic lenses accelerate electrons onto an output phosphor, reconverting them to brighter light for display. Cesium iodide replaced earlier phosphors for better x-ray absorption and resolution.
This document provides an overview of the radiological anatomy of the upper limb. It includes images and descriptions of bones and joints in the shoulder, elbow, and wrist regions. The learning objectives are to identify bones and their parts on radiographs of the upper limb and explain the related applied anatomy. Images show normal anatomy as well as fractures and dislocations of the clavicle, shoulder, elbow, and wrist. Descriptions provide details on anatomical structures and landmarks visible in the radiographs.
Fluoroscopy is an imaging technique where an X-ray beam passes continuously through the body part being examined and is displayed in real-time motion on a monitor, allowing doctors to see internal structures like bones, organs, and muscles in detail as they move. It is used together with CT scans during procedures like barium X-rays to watch barium flow through the digestive system, cardiac catheterization to view blood flow and check for blockages in the heart arteries, and intravenous catheter insertion to guide placement of catheters in the body. The procedure involves low doses of ionizing radiation exposure over several minutes.
This presentation include biliary anatomy ,indication, contraindication post op care of percutaneus transhepatic biliary drainage with important technique. and advantage and disadvantage of different technique. This is important for radiologist, radiographers, intervention radiologist radiology resident. Thanks
O documento descreve a evolução histórica da tomografia computadorizada desde as primeiras considerações teóricas na década de 1950 até as modernas tomografias multislice. Apresenta as principais gerações de equipamentos, desde a primeira geração com aquisição linear lenta até a atual de múltiplos detectores que permite cortes finos em frações de segundo.
PKL II TEKNIK PEMERIKSAAN OMD KLINIS GERD.pptxssuser990fc51
Ringkasan dokumen tersebut adalah: (1) Dokumen tersebut membahas tentang teknik pemeriksaan radiografi OMD untuk melihat saluran pencernaan, (2) Dokumen tersebut juga membahas anatomi, fisiologi, dan kasus GERD serta hasil pemeriksaan pasien, (3) Pemeriksaan dilakukan dengan menggunakan barium sulfat dan menghasilkan kesimpulan bahwa pasien mengalami gastritis tanpa ulkus."
Mammography is a specialized radiography technique dedicated to breast imaging. It uses low kV and minimum filtration to increase contrast between tissues. The mammogram involves compressing the breast and taking craniocaudal and mediolateral oblique views. Digital subtraction angiography (DSA) enhances visualization of blood vessels. It involves subtracting a pre-contrast "mask" image from post-contrast images, removing stationary tissues and leaving only the enhanced vessels. DSA allows for improved detection of abnormalities and image post-processing techniques to further optimize the images.
Teknik pemeriksaan radiografi oral colecystographyIch Bin Fandy
Pemeriksaan radiologi oral colecystografi adalah pemeriksaan kandung empedu dan saluran empedunya dengan menggunakan zat kontrast yang diminum. Tujuannya adalah untuk menggambarkan anatomi, fisiologi, dan patologi kandung empedu dan saluran empedunya. Pemeriksaan ini dilakukan dengan memberikan zat kontrast secara oral kemudian mengambil berbagai gambar radiologi untuk melihat kandung empedu dan aliran zat kontrast.
A mobile C-arm unit uses a tube at one end and image intensifier at the other to provide digital fluoroscopy and angiography. It allows for features like last image hold, magnification, and saving images. Digital subtraction angiography requires complex equipment to manipulate pre-and post-contrast images and create a subtracted image, providing clearer views of vessels. Modern digital fluoroscopy systems use charge-coupled devices and flat panel detectors for direct capture of x-rays, improving resolution and allowing post-processing to reduce radiation dose.
Mammography uses low-dose x-rays to detect breast cancer through the identification of masses, microcalcifications, and architectural distortions. Specialized mammography equipment operates at lower kVp than general radiography, using molybdenum and rhodium targets to produce optimal energy spectra for breast imaging. Key components include dedicated tubes, anti-scatter grids, automatic exposure control, and film processing to provide high-resolution images for cancer screening and diagnosis.
Princípios de física aplicada à ultrassonografiaIared
- O documento discute os princípios físicos da ultrassonografia diagnóstica, incluindo a geração e recepção de ondas ultrassônicas por cristais piezoelétricos e a formação de imagens. Também aborda conceitos como impedância acústica, modos de ultrassom, resolução e artefatos.
This document discusses various types of contrast media used for medical imaging procedures. It describes oil-based contrast media as the first contrast agents used for procedures like myelography in the 1920s. While oil-based agents provided good imaging, they had drawbacks like slow absorption and excretion from the body. More recent water-soluble iodinated contrasts have better physiologic properties, causing less patient discomfort and allergic reactions. The document outlines different contrast properties and uses for procedures such as myelography, hysterography, lymphangiography, and ductography.
O documento discute os componentes e funcionamento de mamógrafos, incluindo a produção de raios-X, interação com tecidos mamários, filmes e processamento de imagens. É descrita a anatomia da mama e tipos de tecidos, além de detalhes sobre compressão, ampliação e modos de operação dos equipamentos.
Este documento apresenta informações sobre um curso de Imaginologia no 3o e 4o período de um curso de Tecnólogo em Radiologia. Ele inclui a bibliografia recomendada, datas de provas, objetivos do curso e introduções sobre imagem radiográfica, histórico do desenvolvimento de métodos de imagem, processos de formação de imagem e modalidades de diagnóstico por imagem que envolvem radiação ionizante.
Welcome to our presentation on "Emergencies in the Radiology Department." As radiology students, it is crucial for us to be prepared to handle emergencies that may arise while working in a medical imaging setting.
During emergencies, quick and effective responses can be life-saving and can make a significant impact on patient outcomes.
This document discusses various components of an MRI system including magnets, RF coils, gradient coils, and safety considerations. It describes the different types of magnets used in MRI like permanent, resistive, and superconducting magnets. It explains the purpose and types of RF coils and gradient coils used to generate the magnetic field gradients needed for spatial encoding in MRI. Safety aspects such as screening for metallic objects, specific absorption rate limits, and absolute contraindications for MRI are also summarized.
O documento fornece um resumo de 3 frases ou menos sobre as aplicações da energia nuclear em diferentes áreas:
1) A energia nuclear tem grandes benefícios para a medicina, indústria e agricultura, possibilitando tarefas antes impossíveis com meios convencionais.
2) Radioisótopos são usados em medicina nuclear para diagnósticos e terapias, como no mapeamento de órgãos e no tratamento de câncer.
3) Na agricultura, traçadores radioativos permitem estudar o metabolismo de
1) A ressonância magnética é um método de imagem que utiliza campos magnéticos e pulsos de rádio frequência para formar imagens do corpo humano.
2) O método explora a interação entre os prótons de hidrogênio no tecido humano com um forte campo magnético externo, criando uma condição para enviar pulsos de rádio frequência e coletar sinais que podem ser convertidos em imagens.
3) Embora o fenômeno da ressonância magnética nuclear tenha sido descrito em 1946, as prime
O documento descreve a evolução histórica da tomografia computadorizada desde as primeiras considerações teóricas na década de 1950 até as modernas tomografias multislice. Apresenta as principais gerações de equipamentos, desde a primeira geração com aquisição linear lenta até a atual de múltiplos detectores que permite cortes finos em frações de segundo.
PKL II TEKNIK PEMERIKSAAN OMD KLINIS GERD.pptxssuser990fc51
Ringkasan dokumen tersebut adalah: (1) Dokumen tersebut membahas tentang teknik pemeriksaan radiografi OMD untuk melihat saluran pencernaan, (2) Dokumen tersebut juga membahas anatomi, fisiologi, dan kasus GERD serta hasil pemeriksaan pasien, (3) Pemeriksaan dilakukan dengan menggunakan barium sulfat dan menghasilkan kesimpulan bahwa pasien mengalami gastritis tanpa ulkus."
Mammography is a specialized radiography technique dedicated to breast imaging. It uses low kV and minimum filtration to increase contrast between tissues. The mammogram involves compressing the breast and taking craniocaudal and mediolateral oblique views. Digital subtraction angiography (DSA) enhances visualization of blood vessels. It involves subtracting a pre-contrast "mask" image from post-contrast images, removing stationary tissues and leaving only the enhanced vessels. DSA allows for improved detection of abnormalities and image post-processing techniques to further optimize the images.
Teknik pemeriksaan radiografi oral colecystographyIch Bin Fandy
Pemeriksaan radiologi oral colecystografi adalah pemeriksaan kandung empedu dan saluran empedunya dengan menggunakan zat kontrast yang diminum. Tujuannya adalah untuk menggambarkan anatomi, fisiologi, dan patologi kandung empedu dan saluran empedunya. Pemeriksaan ini dilakukan dengan memberikan zat kontrast secara oral kemudian mengambil berbagai gambar radiologi untuk melihat kandung empedu dan aliran zat kontrast.
A mobile C-arm unit uses a tube at one end and image intensifier at the other to provide digital fluoroscopy and angiography. It allows for features like last image hold, magnification, and saving images. Digital subtraction angiography requires complex equipment to manipulate pre-and post-contrast images and create a subtracted image, providing clearer views of vessels. Modern digital fluoroscopy systems use charge-coupled devices and flat panel detectors for direct capture of x-rays, improving resolution and allowing post-processing to reduce radiation dose.
Mammography uses low-dose x-rays to detect breast cancer through the identification of masses, microcalcifications, and architectural distortions. Specialized mammography equipment operates at lower kVp than general radiography, using molybdenum and rhodium targets to produce optimal energy spectra for breast imaging. Key components include dedicated tubes, anti-scatter grids, automatic exposure control, and film processing to provide high-resolution images for cancer screening and diagnosis.
Princípios de física aplicada à ultrassonografiaIared
- O documento discute os princípios físicos da ultrassonografia diagnóstica, incluindo a geração e recepção de ondas ultrassônicas por cristais piezoelétricos e a formação de imagens. Também aborda conceitos como impedância acústica, modos de ultrassom, resolução e artefatos.
This document discusses various types of contrast media used for medical imaging procedures. It describes oil-based contrast media as the first contrast agents used for procedures like myelography in the 1920s. While oil-based agents provided good imaging, they had drawbacks like slow absorption and excretion from the body. More recent water-soluble iodinated contrasts have better physiologic properties, causing less patient discomfort and allergic reactions. The document outlines different contrast properties and uses for procedures such as myelography, hysterography, lymphangiography, and ductography.
O documento discute os componentes e funcionamento de mamógrafos, incluindo a produção de raios-X, interação com tecidos mamários, filmes e processamento de imagens. É descrita a anatomia da mama e tipos de tecidos, além de detalhes sobre compressão, ampliação e modos de operação dos equipamentos.
Este documento apresenta informações sobre um curso de Imaginologia no 3o e 4o período de um curso de Tecnólogo em Radiologia. Ele inclui a bibliografia recomendada, datas de provas, objetivos do curso e introduções sobre imagem radiográfica, histórico do desenvolvimento de métodos de imagem, processos de formação de imagem e modalidades de diagnóstico por imagem que envolvem radiação ionizante.
Welcome to our presentation on "Emergencies in the Radiology Department." As radiology students, it is crucial for us to be prepared to handle emergencies that may arise while working in a medical imaging setting.
During emergencies, quick and effective responses can be life-saving and can make a significant impact on patient outcomes.
This document discusses various components of an MRI system including magnets, RF coils, gradient coils, and safety considerations. It describes the different types of magnets used in MRI like permanent, resistive, and superconducting magnets. It explains the purpose and types of RF coils and gradient coils used to generate the magnetic field gradients needed for spatial encoding in MRI. Safety aspects such as screening for metallic objects, specific absorption rate limits, and absolute contraindications for MRI are also summarized.
O documento fornece um resumo de 3 frases ou menos sobre as aplicações da energia nuclear em diferentes áreas:
1) A energia nuclear tem grandes benefícios para a medicina, indústria e agricultura, possibilitando tarefas antes impossíveis com meios convencionais.
2) Radioisótopos são usados em medicina nuclear para diagnósticos e terapias, como no mapeamento de órgãos e no tratamento de câncer.
3) Na agricultura, traçadores radioativos permitem estudar o metabolismo de
1) A ressonância magnética é um método de imagem que utiliza campos magnéticos e pulsos de rádio frequência para formar imagens do corpo humano.
2) O método explora a interação entre os prótons de hidrogênio no tecido humano com um forte campo magnético externo, criando uma condição para enviar pulsos de rádio frequência e coletar sinais que podem ser convertidos em imagens.
3) Embora o fenômeno da ressonância magnética nuclear tenha sido descrito em 1946, as prime
Ce este laparoscopia si care sunt avantajele | Clinica VenArtSorin Ciprian
Ce este laparoscopia si care sunt avantajele acestei medetode | Clinica VenArt
Indicatiile laparoscopiei investigationale
Sterilizarea tubara: reprezinta o metoda contraceptiva sigura recomandata cuplurilor care nu mai doresc sa faca alti copii.
Adezioliza aderentelor: aderentele reprezinta tesut fibros format intre organele pelvine ca urmare a unor infectii, endometriozei sau interventiilor chirurgicale in antecedente. Aderentele pelvine pot duce la infertilitate si la durere pelvina cronica. Adezioliza lor laparoscopic reprezinta tratamentul standard in tarile Europene.
Tratamentul endometriozei: Endometrioza reprezinta prezenta de tesut endometrial in afara localizarii sale normale, cel mai adesea in trompele uterine, ovare sau la nivelul tesuturilor pelvine astfel tesutul care captuseste uterul va ajunge sa se dezvolte si in alte regiuni din exteriorul uterului. Leziunile endometriozice se indeparteaza electrochirurgical sau prin alte metode laparoscopice, imbunatatind fertilitatea, statistic avand rezultate foarte bune.
Sarcina extrauterina: Sarcina extrauterina reprezinta implantarea oului oriunde in afara cavitatii uterine. Tratamentul chirurgical de prima intentie este laparoscopia care poate sa definitiveze diagnosticul si sa ofere posbilitatea terapeutica minim invaziva. In functie de localizare si de gradul de evolutie cel mai frecvent se practica salpingostomie (crearea unui mic orificiu la nivelul trompei prin care se aspira sarcina), salpingectomie (rezectia portiunii din trompa uterina care a fost distrusa de dezvoltarea sarcinii). Tratamentul chirurgical laparoscopic este contraindicat in sarcina extrauterina rupta cu instabilitate hemodinamica, in aceste cazuri unii medici preferand interventia prin laparotomie.
Chisturile ovariene: Chisturile simple ovariene cu dimensiuni de peste 6 cm si care persista mai mult de doua cicluri menstruale la femeia in premenopauza si negravida au indicatie terapeutica chirurgicala. Interventia se poate efectua laparoscopic.
Fibroamele uterine: Fibromul reprezinta o tumora benigna ce se dezvolta din fibrele musculare ale uterului. In cazul femeilor ce doresc pastrarea functiei reproductive sau la care prezenta fibroamelor reprezinta cauza infertililtatii se indica miomectomia ce reprezinta ablatia fibroamelor cu pastrarea uterului, aceasta se va efectua laparoscopic.