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.

MRI accident prompts questions on safety

CMS to make proposed MRI safety codes official

The new code family was created to "capture the physician work involving patients with implanted medical devices that require access to MR diagnostic procedures."

differentiating between malignant and vaccine-related lymphadenopathy

7 COVID vaccine complications: The radiologist's role in identifying adverse reactions

Although serious adverse events related to COVID-19 vaccines are rare, some are life-threatening. It is important that radiologists are aware of how these complications present.

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."

old woman or doctor shaking hands with patient

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.

Around the web

GE HealthCare designed the new-look Revolution Vibe CT scanner to help hospitals and health systems embrace CCTA and improve overall efficiency.

Clinicians have been using HeartSee to diagnose and treat coronary artery disease since the technology first debuted back in 2018. These latest updates, set to roll out to existing users, are designed to improve diagnostic performance and user access.

The cardiac technologies clinicians use for CVD evaluations have changed significantly in recent years, according to a new analysis of CMS data. While some modalities are on the rise, others are being utilized much less than ever before.