1.5 t & 3t mri comparing breast images

•Download as PPTX, PDF•

1 like•63 views

A study compared the diagnostic accuracy of 1.5T and 3T MRI for breast imaging using over 1,900 breast images from nearly 1,000 patients. The results showed no statistically significant difference in diagnostic accuracy, specificity, sensitivity or predictive values between the two field strengths, with both achieving approximately 92% accuracy. While 1.5T MRIs are less expensive, 3T MRIs may require lower contrast agent doses. The researchers concluded that high image quality can be achieved on various MRI units by optimizing protocols for the specific scanner hardware.

Healthcare

Sensible Solutions for Refurbished Radiology
1.5T & 3T MRI: Comparing
Breast Images
By: Vikki Harmonay

Sensible Solutions for Refurbished Radiology
Looking for diagnostic accuracy for breast images? According to
Austrian and German researchers, look no further than 1.5T and 3T
breast MRI images. A recent study published in the May issue of the
European Journal of Radiology shows that 1.5T and 3T breast MRI
images deliver diagnostic accuracy of approximately 92%. In addition,
comparably high numbers were also reached for specificity, sensitivity
and negative predictive values.

Sensible Solutions for Refurbished Radiology
Using MRI for breast imaging has many advantages. It provides
exceptional soft-tissue contrast. Multiparametric sequences
provide enhanced views of tumor vascularization and it provide
simultaneous visualization of both breasts. Multichannel coils also
help interpretations of 1.5T and 3T MR images.

Sensible Solutions for Refurbished Radiology
"Our findings have several implications: [Breast MRI] is robust and
can be performed with various protocols and scanner types,"
wrote the group led by Dr. Matthias Dietzel from University
Hospital Erlangen. "The impact of sequences parameters and the
scanner hardware is probably much lower than expected
previously. While examinations at 1.5T are cheaper, 3T [breast
MRI] has certain inherent advantages: most of all, the potential to
reduce the dosage of contrast agents."

Sensible Solutions for Refurbished Radiology
Much of the previous research that’s compared 1.5T and 3T breast
MRI has focused on small patient groups, selected diagnostic
criteria or specific clinical questions. As a result, the evidence is still
limited regarding increasing the field strength from 1.5T to 3T.

Sensible Solutions for Refurbished Radiology
Dietzel and colleagues reviewed images of 1,961 breasts from 982
patients over a consecutive 12-month period. Of the total, 215 (11%)
were imaged on a 3-tesla system (Magnetom Tim Trio, Siemens) and
1,746 (89%) we imaged on a 1.5T scanner (Magnetom Tim Avanto,
Siemens Healthineers). Both scanners had dedicated 16-channel
breast coils and both protocols included contrast-enhanced T1-
weighted imaging.

Sensible Solutions for Refurbished Radiology
Two readers with expertise in breast MRI assigned a BIRADS
category per breast. The standard of reference was with
histopathological data or MRI follow-up of more than 24
months. The overall diagnostic accuracy was 91.9%, with 1.5tesla
MRI at 92% and 3tesla MRI at 91.2%. Given the spread of only
0.8%, there was no statistically significant difference between the
two strengths (p= 0.68). The other diagnostic parameters also
didn’t show a statistically significant difference.

Sensible Solutions for Refurbished Radiology
The researchers wrote, "As a secondary result our data provide
evidence that high image quality can be achieved by any MRI unit.
To achieve a high image quality, a standard clinical scanner
equipped with a breast surface coil is sufficient. The only
prerequisite is the optimization of the protocol for the specific
scanner hardware (magnet, coil, etc.). This secondary result is
important, as there has been much discussion in the past decades
which protocol is necessary for accurate diagnosis."

Sensible Solutions for Refurbished Radiology
There are so many exciting new technologies being developed and
study findings regarding medical imaging, which benefits
providers and patients. At Atlantis Worldwide, we’re happy to
help you determine which technology is best for your hospital,
clinic, practice or healthcare facility. Oftentimes, the best solution
is a refurbished system, offering hefty warranties and great ROI.
Talk to one of our experts today. Contact Us Today!

Sensible Solutions for Refurbished Radiology
You can read this on our website
https://info.atlantisworldwide.com/blog/breast-mri-
1.5t-3t-scan-results

Sensible Solutions for Refurbished Radiology
Contact Us
200 Park Avenue, Suite 1752 New York, NY – 10166, USA
Phone: 1-212-366-9100
Toll Free: 1-800-533-3356
Fax: 646-762-6562
info@atlantisworldwide.com
https://www.atlantisworldwide.com
https://info.atlantisworldwide.com/blog

Researchers at Oregon State University have developed a new cancer treatment method. Cancer cells can be made to glow under near-infrared light, allowing surgeons to precisely identify and remove tumor tissue. The same light also activates compounds that have been selectively inserted into cancer cells to kill any remaining malignant cells after surgery. In laboratory tests, this "double attack" method completely prevented cancer recurrence after phototherapy treatment.

Segmentation of thermograms breast cancer tarek-to-slid share

Tarek Gaber

This document presents a new method for segmenting regions of interest (ROIs) in breast thermograms to detect breast abnormalities. The method uses features extracted from the ROIs, like statistical and texture features, and supports vector machines for classification. It was tested on a database of 149 patients, achieving 100% accuracy in detecting normal vs. abnormal breasts. The method provides an automatic and low-cost approach to segmenting thermograms for breast cancer detection.

Quality Assurance At Wellspring

Robert J Miller MD

Nuchaltranslucency(NT) screening

Salvo Fedele

1) Nuchal translucency screening uses ultrasound to measure the thickness of fluid behind the fetal neck to calculate the risk of Down syndrome and other chromosomal abnormalities. 2) To obtain an accurate measurement, the ultrasound image must be positioned in the sagittal plane and show at least two-thirds of the fetal head and neck, with the maximum fluid thickness measured perpendicular to the long axis. 3) While special training is required to perform nuchal translucency screening, radiologists are well-suited for it since they are trained to examine areas surrounding the uterus in addition to what is inside.

Breast cancer detection using Artificial Neural Network

Subroto Biswas

This presentation summarizes research on diagnosing breast cancer using an artificial neural network. It begins with an introduction of the topic and presenter. The contents include descriptions of breast cancer, artificial neural networks, and backpropagation. It then details the breast cancer database used, the neural network model developed, and its performance in diagnosing cancers as benign or malignant. The conclusion is that neural networks show potential for medical diagnosis but require further optimization. Suggested future work includes exploring other training methods, feature selection, and adding treatment recommendations.

Poster_Visser2015

Job Visser

This document discusses research on developing predictive and prescriptive models for patient-specific management of adrenal incidentalomas. The objectives are to 1) develop a clinical prediction model to predict if an adrenal incidentaloma is clinically relevant, and 2) derive a prescriptive model for patient-specific management. The predictive models performed well in tests and the prescriptive model was able to save 15-25% of patients from unnecessary work-up while still identifying all clinically relevant patients. Future work involves refining the models with additional data and external validation.

Poster mopa

Yana Puckett, MD, MPH, MS

This study examined the inefficiencies of transferring radiology images between hospitals during pediatric trauma transfers. It found that imaging was unable to be uploaded to the receiving hospital's records 27.8% of the time, necessitating repeat CT scans 1.2% of the time. Using cloud-based systems could allow receiving hospitals instant access to outside imaging, eliminating unnecessary repeat scans, treatment delays, and reducing costs. Radiation exposure from CT scans increases cancer risks for children and cloud-based sharing could help minimize further exposure.

A Day in the Life As : Radiation Therapy Technologist in IndiA

Teekendra Singh Faujdar

The document discusses several active areas of work in artificial intelligence applications in radiology at Brown University's AI radiology lab, including COVID-19 detection from chest x-rays, tumor assessment, stroke diagnosis, and more. It provides details on techniques like contrast dropout to deal with missing data, human-in-the-loop approaches, automatic quality estimation, treatment response evaluation, and federated learning to share models without sharing patient data. Performance results and example visualizations from various models are also included.

Foundation for Chiropractic Progress: Study Shows Acetaminophen Ineffective i...

enchantingfeud562

Static beam tomotherapy (TD) as an optimisation method in whole breast radiat...

Matthew Squires

Static beam tomotherapy (TD) can provide an effective method for whole breast radiation therapy (WBRT) that is comparable or superior to intensity-modulated radiation therapy (IMRT) in several ways: 1) TD plans achieved comparable target coverage and homogeneity as IMRT plans while reducing the median dose, maximum dose, and homogeneity index slightly but significantly. 2) TD significantly reduced the volume of ipsilateral lung receiving low doses of radiation compared to IMRT. 3) TD planning was significantly faster than IMRT, requiring approximately half the time with a mean savings of 17.8 minutes per patient. 4) Other organs at risk were comparable between the two techniques.

Proton Radiotherapy: A Gentler Form of Radiation Treatment

Dr. Allen Cherer

Proton radiotherapy may provide improved outcomes for pediatric brain tumor patients compared to standard photon radiation. A study of pediatric patients with medulloblastoma who received proton radiotherapy after surgery and chemotherapy found comparable survival and tumor recurrence rates to conventional radiation, but far fewer side effects impacting hearing, cognition, and other organs. The results suggest proton radiotherapy is effective and safer for children, with decreased long-term side effects and improved quality of life.

Igrt

Lyfboat Technologies Pvt Ltd.

Radiation protectionandqualityassessmentinxri fin

MUBOSScz

The document discusses patient safety and image quality in x-ray imaging. It notes that ionizing radiation carries risks like carcinogenesis and outlines radiation doses from common medical imaging procedures. Maintaining adequate image quality while avoiding unnecessary radiation exposure requires justification of exams, optimization of protocols, and limiting patient doses. Key principles of radiation protection aim to balance image quality needs with radiation risks.

CCC fact sheet revised

Laurie Harrison

The St. Francis Comprehensive Cancer Center has been accredited since 1983 and offers advanced cancer treatment services including a nurse navigator, pharmacist, surgery, chemotherapy, radiation including TomoTherapy Hi-Art, IGRT, support groups, and valet parking. The cancer center strives to treat the whole patient with the latest technology such as the TomoTherapy Hi-Art radiation system which allows for continuous 360 degree radiation and adaptation of treatments to changes in the body and tumor.

Carestream RSNA 2015 Pediatric Fracture Detection Study

Carestream

The study had two specific goals: 1) Determine the impact of a simulated reduced dose rendering on the detection of skeletal fractures in children, and 2) Evaluate the effect of enhanced skeletal processing on the same detection task. The methodology and results of this study were on display at RSNA 2015. Read the blog at http://www.carestream.com/blog/2016/04/12/carestream-pediatric-fracture-detection-study-and-potential-dose-reduction/#more-7700 or visit www.carestream.com/medical

Introduction to lung cancers

Gil Lederman

This document discusses lung cancer treatments available at Radiosurgery New York. It offers stereotactic body radiosurgery to focus high doses of radiation on lung cancers while minimizing dose to healthy tissue. This allows increased doses for improved local tumor control and better survival outcomes. It also provides re-radiation for cancers that were not fully treated by other methods, with the greatest experience in chest re-radiation worldwide. Physicians there treat both small cell and non-small cell lung cancers, including recurrent or metastatic disease resistant to prior therapies, with local tumor control rates of 80-90% in treated areas.

Best Practices in Identifying Proton-Appropriate Patients

SCCA Proton Therapy Center

Performance Evaluation using Supervised Learning Algorithms for Breast Cancer...

IRJET Journal

The document discusses using supervised machine learning algorithms to evaluate the performance of breast cancer diagnosis. It evaluates algorithms like perceptron, cascade-forward backpropagation, and feed-forward backpropagation on a breast cancer dataset from the Wisconsin Breast Cancer Diagnosis database. The algorithms are used to develop a process for diagnosis and prediction of breast cancer that could help physicians diagnose the disease more accurately.

Motion Management in Lung Cancer Radiotherapy

Jyotirup Goswami

This document discusses motion management techniques for lung cancer radiotherapy. It begins by explaining why motion management is important, as standard CT scans do not fully capture lung tumor motion. It then describes 4DCT and other methods for assessing tumor motion, as well as techniques like ITV, gating, tracking and breath-holding to control for motion. Specific examples of tracking systems like ExacTrac and Cyberknife are provided. Overall, the document provides an overview of the challenges of lung tumor motion and different strategies used to manage it in radiation treatment planning and delivery.

Recent Advancement in Nursing Practice

ManjunathanChandran

Brain cancer in focus

AustralianCancerResearchFoundation

Current treatment options for brain cancer include radiotherapy, steroid therapy, chemotherapy, and surgery. Researchers are working to increase the 5 year survival rate which is currently 21.9% through additional research into causes and by trialling new immunotherapy treatments on patients. More common in men than women, Australian scientists are investigating ways to improve brain cancer outcomes.

From sci-fi to reality: Next generation imaging tools

Trimed Media Group

Gesture recognition for image browsing Researchers at Purdue University are developing a touchless camera system using the Microsoft Kinect to allow surgeons to browse and manipulate MRI images with hand gestures in the operating room. The system can recognize ten gestures accurately over 92% of the time to rotate, browse, and adjust medical images. Pill-sized imaging of the esophagus Researchers at Massachusetts General Hospital are developing an ingestible capsule that uses optical frequency domain imaging and a rapidly rotating laser to image the inside of the esophagus. In initial tests the pill-sized device distinguished between patients with Barrett's esophagus and healthy volunteers without requiring sedation. Handheld x-ray scanner

Breast screening with ultrasound in patients with mammography-negative dense ...

Senology.org

The document analyzes the frequency of interval cancers in dense breasts screened with mammography and ultrasound compared to non-dense breasts screened with only mammography. It finds that the frequency of interval cancers in dense breasts screened with both tests is similar to non-dense breasts screened with only mammography. This finding provides convincing evidence that ultrasound improves mammography's sensitivity by reducing false negatives when used together in dense breasts.

Optimisation of X-Ray CT within SPECTCT Studies

Layal Jambi

This document discusses optimizing the X-ray CT dose in SPECT/CT studies. It begins by examining the correlation between patient body mass index (BMI) and abdominal thickness measured on CT images from SPECT/CT studies. Data from 18 patients was analyzed to determine if the anthropomorphic phantom used in the study reasonably approximated larger patients. The document then outlines a study using the phantom to acquire SPECT and CT images under various protocols to evaluate the relationship between CT dose and image noise and accuracy of attenuation correction. A nuclear medicine radiologist will then qualitatively analyze the images to determine the best protocol that maintains image quality while optimizing dose. The goal is to develop a low-dose CT protocol for use in SPECT

The Patient Journey with AI

Imagia Cybernetics

Clinicians, Leveraging AI expertise, Understanding the Regulatory Framework • Clinical interpretability guiding the adoption of AI-first differential diagnoses • Disparity in data literacy affecting the communication of AI among healthcare scientists • Regulatory challenges impeding the penetration of AI into clinical practice - from research to policymakers Frank J. Rybicki MD, PhD, Professor and Chair, Department of Radiology, UNIVERSITY OF OTTAWA FACULTY OF MEDICINE

1. 501099

Aidadaniesya

This document summarizes recent developments in digital analysis techniques for breast imaging, including mammography, MRI, and computer-assisted diagnosis systems. It discusses how digital mammography and computer algorithms can help detect cancers and reduce false positives compared to analog mammography. It also describes how MRI provides additional functional information and computer-assisted diagnosis can help standardize assessments of breast density and lesion characteristics. Emerging techniques like radiomics and deep learning extract large amounts of imaging features and use machine learning to correlate imaging phenotypes with cancer outcomes or risk factors.

Medical Deep Learning: Clinical, Technical, & Regulatory Challenges and How t...

Devon Bernard

Deep Learning is proving to be a powerful tool that can improve healthcare for both patients and care-providers. In this talk I’ll cover an intro to some of the medical problems currently being solved by deep learning, market adoption, healthcare challenges (e.g regulation, data quality, data acquisition), deep learning challenges (e.g. model stability, training/convergence time, scalable training environment), and tips learned by tackling these problems head-on. This talk was presented Oct 15, 2017 at http://ai.withthebest.com/.

Magnetom flash 55

Jhon Arriaga Cordova

The editorial discusses how collaborations between academic medical centers and industry have advanced MRI through various examples in the magazine issue. It highlights how such partnerships have leveraged MRI's contrast mechanisms and improved image quality, examination speed, and patient comfort. The growing healthcare needs require continued diagnostic imaging advances. The issue features articles demonstrating innovations in motion-robust imaging, rapid protocols, quantitative mapping, and noise reduction.

Wavelength October 2015 Volume 19 No. 2

Jerry Duncan

This article discusses the first clinical uses of Elekta's new Leksell Gamma Knife Icon system at University Hospital La Timone in Marseilles, France. The Icon allows for frameless Gamma Knife radiosurgery using a mask for head fixation rather than the traditional rigid frame. The first patient was treated on August 10th for a brain metastasis using this frameless approach. Additional patients were also treated for metastases. On August 17th, the first patient began a multi-session, hypofractionated treatment for a meningioma using the frameless approach. The Icon's advanced motion management and imaging capabilities enable these frameless treatments by precisely reproducing the patient's position over multiple sessions.

What's hot

Professor Harrison Bai, Artificial Intelligence Applications in Radiology_mHe...

Levi Shapiro

Foundation for Chiropractic Progress: Study Shows Acetaminophen Ineffective i...

enchantingfeud562

Static beam tomotherapy (TD) as an optimisation method in whole breast radiat...

Matthew Squires

Proton Radiotherapy: A Gentler Form of Radiation Treatment

Dr. Allen Cherer

Igrt

Lyfboat Technologies Pvt Ltd.

Radiation protectionandqualityassessmentinxri fin

MUBOSScz

CCC fact sheet revised

Laurie Harrison

Carestream RSNA 2015 Pediatric Fracture Detection Study

Carestream

Introduction to lung cancers

Gil Lederman

Best Practices in Identifying Proton-Appropriate Patients

SCCA Proton Therapy Center

Performance Evaluation using Supervised Learning Algorithms for Breast Cancer...

IRJET Journal

Motion Management in Lung Cancer Radiotherapy

Jyotirup Goswami

Recent Advancement in Nursing Practice

ManjunathanChandran

Brain cancer in focus

AustralianCancerResearchFoundation

From sci-fi to reality: Next generation imaging tools

Trimed Media Group

Breast screening with ultrasound in patients with mammography-negative dense ...

Senology.org

Optimisation of X-Ray CT within SPECTCT Studies

Layal Jambi

The Patient Journey with AI

Imagia Cybernetics

1. 501099

Aidadaniesya

What's hot (19)

Professor Harrison Bai, Artificial Intelligence Applications in Radiology_mHe...

Foundation for Chiropractic Progress: Study Shows Acetaminophen Ineffective i...

Static beam tomotherapy (TD) as an optimisation method in whole breast radiat...

Proton Radiotherapy: A Gentler Form of Radiation Treatment

Igrt

Radiation protectionandqualityassessmentinxri fin

CCC fact sheet revised

Carestream RSNA 2015 Pediatric Fracture Detection Study

Introduction to lung cancers

Best Practices in Identifying Proton-Appropriate Patients

Performance Evaluation using Supervised Learning Algorithms for Breast Cancer...

Motion Management in Lung Cancer Radiotherapy

Recent Advancement in Nursing Practice

Brain cancer in focus

From sci-fi to reality: Next generation imaging tools

Breast screening with ultrasound in patients with mammography-negative dense ...

Optimisation of X-Ray CT within SPECTCT Studies

The Patient Journey with AI

1. 501099

Similar to 1.5 t & 3t mri comparing breast images

Medical Deep Learning: Clinical, Technical, & Regulatory Challenges and How t...

Devon Bernard

Magnetom flash 55

Jhon Arriaga Cordova

Wavelength October 2015 Volume 19 No. 2

Jerry Duncan

ISMRM Edition – Issue 58

Jhon Arriaga Cordova

The document discusses abdominal MRI on the new MAGNETOM Prisma 3T scanner. It notes the advantages of 3T MRI include higher signal-to-noise ratio and contrast-to-noise ratio, allowing for improved spatial resolution and lesion detection. However, challenges at 3T include increased magnetic field inhomogeneities and susceptibility artifacts. The MAGNETOM Prisma addresses these challenges through technical advances, such as improved B0 and B1 field homogeneity which provide better image quality for liver imaging compared to standard 3T scanners. The article demonstrates examples of reduced distortion and improved diffusion-weighted imaging of the liver on MAGNETOM Prisma.

RSNA Edition - Issue 48

Jhon Arriaga Cordova

1. The case report describes cerebral magnetic resonance spectroscopy (MRS) findings in two patients. 2. In the first case, MRS of a right thalamic lesion showed elevated choline relative to N-acetylaspartate (NAA), consistent with glioblastoma multiforme. Normal MRS was seen in the left thalamus. 3. In the second case, MRS of a right cerebellar lesion showed elevated lactate, consistent with abscess. 4. MRS provides in vivo analysis of brain metabolites and can help characterize lesions by detecting abnormalities in choline, NAA and other peaks compared to normal brain tissue.

Somatom sessions 32

Jhon Arriaga Cordova

This document summarizes experiences using dual energy CT (DECT) from experts in Germany, the Netherlands, and Japan. DECT provides additional clinical information compared to conventional CT. Experts in Munich are researching using single source DECT to quantify iodine uptake in lesions. Experts in Rotterdam are using dual source DECT in pediatric patients to assess heart and lung abnormalities without sedation. Experts in Japan find DECT useful for distinguishing thyroid cartilage from head and neck tumors to avoid overtreatment. DECT is becoming more widely used in clinical practice and research due to improved diagnostic capabilities.

The Pursuit of Excellence in Image Quality

Carestream

Comparison of-incidental-radiation-dose-to-axilla-and-internal-mammary-nodala...

science journals

Measurement of tumour size with mammography, sonography and magnetic resonanc...

Enrique Moreno Gonzalez

Application Brief - Breast Cancer Research

FUJIFILM VisualSonics Inc.

This document discusses the need for improved imaging systems for breast cancer research using animal models. It introduces a new micro-ultrasound system that allows researchers to non-invasively collect longitudinal data on tumor size, volume, vascularity and perfusion over an animal's lifespan. This significantly reduces the number of animals needed for research. The system has been adopted by leading cancer research institutions and numerous studies have been published demonstrating its ability to accurately track tumor growth and response to therapies.

This Month In Radiology February 2009

hatch_xanadu

This document contains summaries of several medical studies and articles published in the February 2009 issue of Radiology. The summaries discuss studies on using ultrasound and CT to diagnose pediatric appendicitis, using CT texture analysis to predict colorectal cancer survival, using CT to exclude appendicitis even when the appendix is not visualized, using a consensus panel to improve breast cancer screening and reduce recall rates, distinguishing adrenal adenomas from nonadenomas using a combined CT protocol, and more.

Application Brief - Breast Cancer Research

FUJIFILM VisualSonics Inc.

Breast Cancer Radiotherapy

fondas vakalis

This document summarizes recent developments in breast cancer radiotherapy. It discusses a recent meta-analysis of breast cancer radiotherapy trials involving 42,000 women which found that radiotherapy reduces 15-year breast cancer mortality by 5-10% and overall mortality by 4.4%, compared to no radiotherapy. Newer targeted radiotherapy techniques like partial breast irradiation and intensity-modulated radiation therapy (IMRT) are explored which may improve outcomes by more conformally targeting radiation doses to the breast tissue and reducing doses to nearby organs. However, long-term data on these newer techniques is still pending and questions remain around patient selection and appropriate treatment margins.

MR Guided Focused Ultrasound (MRgFUS) Overview of Present and Future Clinical...

u.surgery

The document provides an overview of MR Guided Focused Ultrasound (MRgFUS) and its present and future clinical research studies for various applications. It discusses how MRgFUS works using focused ultrasound to ablate tissue only at the focal point with MR guidance and thermometry for precise targeting and treatment monitoring. Current research studies described include pain palliation of bone metastases, breast cancer, and prostate cancer treatments. Preliminary results for bone metastases and breast cancer indicate reduced pain and high tumor necrosis. Future areas of research discussed include brain treatments and expanding applications to other organs.

ISMRM Edition - Issue 49

Jhon Arriaga Cordova

The document discusses developing optimal protocols for simultaneous MR-PET examinations. Initial experience with the first MR-PET system for clinical use showed promise for anatomically focused and whole-body exams. For focused exams, MR provided high-resolution anatomical maps to localize metabolic information from PET. Whole-body MR-PET allowed metabolic bone imaging with improved localization compared to PET-CT. Continued experience will help optimize protocols to maximize benefits from the multi-parametric data provided by the combined MR-PET system.

Reduced Radiation Exposure in Dual-Energy Computed Tomography of the Chest: ...

MehranMouzam

ABSTRACT: Objective: This study purports to answer the question: Does a dual-energy CT scan of the chest using reduced radiation result in images of equal or better quality compared to those produced by the gold standard of care? Methods: With the agreement of the Ethical Review Committee and written informed consent from 32 patients, who received dual-energy CT (DECT) scan of the chest in a dual-source scanner, a second set of images was taken at a reduced radiation dose. On virtual monochromatic images at 40 and 60 keV, three thoracic radiologists evaluated image quality, normal thoracic structures, and pulmonary and mediastinal aberrations. Students analyzed the data using analysis of variance, Kappa statistics, and Wilcoxon signed-rank tests. Results: No irregularities in the scans were missed in the virtual monochrome photographs of all patients at a lower radiation dose, and the images were found to be of sufficient quality. At 40 and 60 keV, standard-of-care pictures produced equal contrast enhancement and lesion detection. Observers were entirely consistent with one another. Among other characteristics, reduced-dose DECT had a CTDIvol of 3.0 ±0.6 mGy, and a size specified dose estimate (SSDE) of 4.0 ±0.6 mGy, a dose-length product (DLP) of 107 ±30 mgy.cm, and an effective dose (ED) of 1.15 ±0.4 mSv. Conclusion: Dual-energy computed tomography of the chest allows for the administration of lower radiation doses (CTDIvol <3 mGy).

SPECT/CT: HOW Much Radiation Dose CT Constitute

Shahid Younas

AI in Gynaec Onco

Niranjan Chavan

Role of Tomosynthesis in Assessing the Size of the Breast Lesion

Apollo Hospitals

research poster - karishma patel

karishma patel

This document presents a proposed study to compare late toxicity for breast radiation therapy patients treated in the prone versus supine position. The study would enroll 30 early-stage breast cancer patients and collect dose and toxicity data. Patients would receive tangential breast radiotherapy planned on CT scans in both positions. Late toxicity would be assessed during follow-up appointments over 36 months to see if prone positioning reduces side effects by sparing nearby organs at risk from radiation. Statistical analysis using t-tests would compare dose and toxicity between the two treatment positions. The methodology aims to provide quantitative data on whether prone positioning offers benefits for breast radiation therapy patients.

Similar to 1.5 t & 3t mri comparing breast images (20)

Medical Deep Learning: Clinical, Technical, & Regulatory Challenges and How t...

Magnetom flash 55

Wavelength October 2015 Volume 19 No. 2

ISMRM Edition – Issue 58

RSNA Edition - Issue 48

Somatom sessions 32

The Pursuit of Excellence in Image Quality

Comparison of-incidental-radiation-dose-to-axilla-and-internal-mammary-nodala...

Measurement of tumour size with mammography, sonography and magnetic resonanc...

Application Brief - Breast Cancer Research

This Month In Radiology February 2009

Application Brief - Breast Cancer Research

Breast Cancer Radiotherapy

MR Guided Focused Ultrasound (MRgFUS) Overview of Present and Future Clinical...

ISMRM Edition - Issue 49

Reduced Radiation Exposure in Dual-Energy Computed Tomography of the Chest: ...

SPECT/CT: HOW Much Radiation Dose CT Constitute

AI in Gynaec Onco

Role of Tomosynthesis in Assessing the Size of the Breast Lesion

research poster - karishma patel

More from Atlantis Worldwide LLC

OEC Elite CFD C-Arm or Siemens CIOS Alpha C-Arm.pptx

1.5 t &amp; 3t mri comparing breast images

Recommended

Recommended

More Related Content

What's hot

What's hot (19)

Similar to 1.5 t &amp; 3t mri comparing breast images

Similar to 1.5 t &amp; 3t mri comparing breast images (20)

More from Atlantis Worldwide LLC

More from Atlantis Worldwide LLC (20)

Recently uploaded

Recently uploaded (20)

1.5 t &amp; 3t mri comparing breast images

1.5 t & 3t mri comparing breast images

Similar to 1.5 t & 3t mri comparing breast images

Similar to 1.5 t & 3t mri comparing breast images (20)

1.5 t & 3t mri comparing breast images