Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is the gold standard imaging modality for soft tissues. It produces detail cross-sectional images of soft tissue and bone anatomy, including muscles, tendons, ligaments, brain and organs, without the use of ionizing radiation. In addition to orthopedic imaging, MRI is also used for heart, brain and breast. MRI uses gadolinium contrast in many exams to highlight tissues and blood vessels, which enhances images and offers better diagnostic quality. It can also be used in conjunction with PET scans. How does MRI work? MR creates images by using powerful magnets to polarize hydrogen atoms in water (the body is made of of more than 80% water) so they face in one direction. A radiofrequency pulse is then used to ping these atoms, causing them to wobble, or resonate. The MRI coils detect this and computers can assemble images from the signals. Basic MRI scans will focus on the resonance of fat and water in two different sequences, which highlight and contrast different features in the anatomy.

AI prostate lesion segmentation algorithm

AI tumor volume estimations could improve prostate cancer treatment strategies

More detailed estimations of lesion size could give providers greater insight into how to best manage a patient’s treatment plan. 

Rads' lumbar MRI reads more accurate when they have access to patients' self-reported symptoms

Rads are more accurate when they have access to patients' self-reported symptoms

This is especially true for lumbar MRIs, as these exams often show abnormalities without correlating symptoms, making it difficult to distinguish between incidental findings and the actual source of patients’ issues.

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Brain MRIs reveal the costly price of chronic poor sleep habits

New research suggests that individuals who report even moderate sleep disturbances show accelerated brain age on imaging compared to their peers who have overall healthy sleep habits. 

technologist MRI rad tech radiologic radiology

MRI could be 'powerful tool' for guiding surgery decisions in patients with rectal cancer

“No one wants to get surgery if they can avoid it. Now we have a powerful tool to help patients and their doctors predict who would benefit from surgery after initial chemotherapy and radiation."

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MRIs reveal menopausal hormone therapy's impact on the brain

It has long been believed that hormone therapy could have neuroprotective effects on the brain. However, new data suggests that this isn't the case for every woman.

ai in healthcare

AI software that boosts detection of small brain lesions gains FDA clearance

The software is a collaboration between Bracco Diagnostics, a subsidiary of Bracco Imaging, and Subtle Medical, Inc.

Commercially available AI significantly improves prostate MRI report consistency

By reducing report variability, the software could help decrease unnecessary biopsies in patients with questionable lesions.

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Bilingual people have more efficient brains, imaging study shows

Researchers examined the brains of bilingual and monolingual people using fMRI, only to find improved communication between isolated regions in those who learn a second language at a young age.

Around the web

RBMA President Peter Moffatt discusses declining reimbursement rates, recruiting challenges and the role of artificial intelligence in transforming the industry.

Deepak Bhatt, MD, director of the Mount Sinai Fuster Heart Hospital and principal investigator of the TRANSFORM trial, explains an emerging technique for cardiac screening: combining coronary CT angiography with artificial intelligence for plaque analysis to create an approach similar to mammography.

A total of 16 cardiology practices from 12 states settled with the DOJ to resolve allegations they overbilled Medicare for imaging agents used to diagnose cardiovascular disease.