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.

Advanced MRI shows potential for assessing asymptomatic patients at risk for Alzheimer’s

Experts compared people with a genetic mutation associated with the disease and non-carriers, sharing their new insights in Radiology.

October 12, 2021
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Health giant launches ‘coaching’ solution to help patients with MRI anxiety

Company officials believe the new offerings can enhance quality and lead to more sedation-free exams. 

October 11, 2021

AI drops tracer dose required for PET/MRI by 50%, a potential ‘major’ boost for cancer care

The FDA-approved algorithm can ultimately minimize patients' risk of developing secondary cancers later in life, experts said in Radiology: Artificial Intelligence.

October 7, 2021

AI triages breast screening MRIs without missing a single cancer

The system also sent nearly 90% of dense breast scans for radiologist review due to abnormal lesions.

October 5, 2021
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Radiology provider loses court battle with competitor over certificate of need for MRI

The North Carolina Court of Appeals acknowledged a loophole in the law but said its job is to interpret statutes as they are written, not speculate about consequences.

October 5, 2021
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Portable MRI specialist Hyperfine announces plans to expand overseas

The move is part of a larger commercial expansion goal to enter four additional countries within the next six months.

September 29, 2021
Time is money | Time Value Units | TVUs

Pairing faster imaging sequence with deep learning cuts shoulder MRI scan time by 67%

Exams performed using the deep learning-based reconstruction tool also maintained high image quality, experts reported recently.

September 15, 2021

MR imaging-guided SABR extends the lives of patients with inoperable pancreatic cancer

Miami Cancer Institute experts found the technique "significantly" prolonged overall survival, sharing their findings at the European Society for Radiotherapy and Oncology 2021 conference.

September 10, 2021

Around the web

Automated AI-generated measurements combined with annotated CT images can improve treatment planning and help referring physicians and patients better understand their disease, explained Sarah Jane Rinehart, MD, director of cardiac imaging with Charleston Area Medical Center.

Two advanced algorithms—one for CAC scores and another for segmenting cardiac chamber volumes—outperformed radiologists when assessing low-dose chest CT scans. 

"Gen AI can help tackle repetitive tasks and provide insights into massive datasets, saving valuable time," Thomas Kurian, CEO of Google Cloud, said Tuesday. 

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