Katrina Megget

2018
Questions, dilemmas abound in fast-moving world of trauma imaging
Time is of the essence when it comes to polytrauma, yet numerous questions arise about how and who should be scanned and for which conditions. For a trauma team, making the right imaging decisions for patients with severe injuries can be complex and a matter of life and death. Trauma specialists shared their experiences at today's session at ECR 2018.
March 3, 2018
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2018
Necessity of gadolinium contrast comes under scrutiny
Gadolinium-enhanced MRI scans have been the gold standard in suspected cases of vestibular schwannoma and multiple sclerosis (MS), but given the growing evidence of deposits left in the brain, debate has ensued about how to image wisely. Is it always necessary to use gadolinium contrast agents? Regarding vestibular schwannoma and MS, today's Pros and Cons Session will explore this question.
March 1, 2018
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2018
Safety issues linger over gadolinium-based contrast agents
Conclusive research into the safety of gadolinium-based contrast agents could take about a decade to emerge because of the huge difficulties of obtaining enough valuable and objective data. In the meantime, radiologists will be dependent on newly released guidelines from the world's health watchdogs and other reports, ECR 2018 delegates will learn at today's Special Focus Session.
February 27, 2018
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2017
To be or not to be alarmed over gadolinium contrast? That is the question
The medical imaging community should be neither alarmed nor develop a gadolinium phobia while waiting for guidance from regulators over controversial gadolinium contrast agents. This is the opinion of Dr. Howard Rowley from the University of Wisconsin in the U.S. and president of the American Society of Neuroradiology.
March 2, 2017
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2017
Cost-effectiveness, implementation still hinder lung cancer screening
The public desire for lung cancer screening and the ability of the medical profession to implement it are currently at odds, despite recent findings that suggest screening via low-dose CT can reduce mortality. The problem is lung cancer screening remains controversial and is not as straightforward as most people think, according to Dr. Stefan Diederich, PhD.
March 1, 2017
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Quantitative CT textures of the lung help assess COPD severity
Quantitative CT can capture lung inflammation patterns to assess the severity of chronic obstructive pulmonary disease (COPD).
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ACS: Breast cancer screening rates have recovered post-COVID
Images show lung ultrasound findings of major pleuro-pulmonary pathologies. (a) Pleural effusion; (b) Pneumonia; (c) Bronchopneumonia; (d) Acute pulmonary edema; (e) Chronic obstructive pulmonary disease exacerbation; (f) Pleuropulmonary tumors; (g) Acute respiratory distress syndrome.
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Lung POCUS helps diagnose dyspnea in emergency departments
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MRI tool segments over 60 abdominal organs, structures
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Images show lung ultrasound findings of major pleuro-pulmonary pathologies. (a) Pleural effusion; (b) Pneumonia; (c) Bronchopneumonia; (d) Acute pulmonary edema; (e) Chronic obstructive pulmonary disease exacerbation; (f) Pleuropulmonary tumors; (g) Acute respiratory distress syndrome.
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Figure: Improved image quality with a generative adversarial network architecture for low- to high-field-strength image translation, called LowGAN. (A–C) Top: High-field-strength (3-T) and low-field-strength (64-mT) images and LowGAN outputs for a single participant across (A) fluid-attenuated inversion recovery (FLAIR), (B) T1-weighted (T1w), and (C) T2-weighted (T2w) contrasts. Bottom: Graphs demonstrate the structural similarity index (SSIM), peak signal-to-noise ratio (PSNR), normalized cross-correlation (NCC), and feature similarity index (FSIM) between high field strength and low field strength (64-mT) and high field strength and LowGAN outputs. a.u. = arbitrary units.****p ≤ 0.0001. Images and caption courtesy of Radiology and the RSNA.
Machine learning standardizes bone tumor grading on MRI, CT
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An AI algorithm and an updated risk stratification system produce accurate and standardized bone lesion assessment on CT and MRI.
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Accelerated MRI protocols reduce environmental impact
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Clinical and ultrasound features improve diagnostic accuracy for detecting endometrial malignancy.
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Right-to-repair battle heats up in North Carolina
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North Carolina legislation, if passed, will require original equipment manufacturers to support medical equipment repair providers.
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Combined PET scans predict the progression of Alzheimer’s disease
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Combining information from amyloid PET and FDG-PET scans can predict progression from mild cognitive impairment to Alzheimer's.
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