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.

Philips MRI

SimonMed signs MRI pact with Philips; FDA clears several new AI algorithms, plus more vendor news

Also, Sectra signs seven-year contract in the Netherlands, GE Healthcare announces an industry first, and Fujifilm expands a mammography-related partnership. 

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Functional MRI use in Medicare has stagnated after years of growth. What’s holding it back?

A team of experts from Emory University and the Harvey L. Neiman Health Policy Institute analyzed a decade's worth of Medicare data to answer this question. 

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Cigna officially stops covering hospital-based CT, MR imaging after months-long delay due to pandemic

The nation's fourth largest commercial insurer first announced the payment change in February, but pushed its go-live date back to August because of the COVID crisis.

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MRI prostate cancer screening leads to fewer biopsies, cutting millions in healthcare spending

A shift from PSA screening toward mpMRIp has produced 354.7 fewer biopsies each month and about $9.4 million in annual Medicare savings. 

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Ultrasonography a swift and sound alternative to MRI for diagnosing anterior knee pain

Magnetic resonance is the "gold standard" method of assessing this indication, but US scored high marks in a recent study. 

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Deep learning diagnoses disabling neurological condition on MRI in under 1 second

The platform—DystoniaNet—was 98.8% accurate at diagnosing the condition, and with further testing, may soon be in clinics, experts explained recently.

knee x-ray

New technique cuts knee MRI scan times in half without damaging diagnostic certainty

That’s according to an investigation out of the University Hospital Cologne in Germany, highlighted in the European Journal of Radiology. 

Multiple sclerosis ribbon MS

Structured reporting for follow-up multiple sclerosis MRI significantly reduces interpretation times

That’s according to a new investigation out of the Cleveland Clinic, highlighted in Academic Radiology.