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.

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AI-MRI combo predicts dementia with 94% accuracy in patients with memory loss

The findings hold "considerable clinical significance" for patients with memory loss and could help guide early interventions for those who might go on to develop dementia, experts reported this week.

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MRI study brings scientists closer to diagnosing CTE in living patients

"This is very exciting because it brings us that much closer to detecting CTE in living people," explained lead author of the study, Michael Alosco, PhD.

Multi-slice knee MRI technique saves time without sacrificing quality

Radiologists should know that the more they use simultaneous multi-slice settings, the more likely artifacts are to appear.

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Artificial intelligence could pinpoint success of rectal cancer treatment based on routine MRI

The Department of Defense is gifting Case Western researchers a grant to study the use of AI in determining whether patients require surgery. 

Goldberg MRI stroke brain

New CT protocol uses scout images to expedite stroke patients' path to MRI

The new safety screening protocol should "markedly improve" current delays in screening patients, Mayo Clinic doctors explained.

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Prenatal MRI reveals ‘major’ brain differences among unborn babies exposed to alcohol

About 9.8% of women confess to drinking alcohol during their pregnancy, a number that's likely much higher, experts said Wednesday.

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Radiology department utilizes Facebook algorithm to anticipate future CT, MRI volumes

The free tool just slightly overshot MRI volumes during the height of the pandemic, greatly outperforming manual estimates.

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HeartVista's one-click MRI software receives FDA clearance

AI-assisted scans are six times faster than standard CMRIs and require fewer breath-holds, company representatives said Wednesday.

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Positron partners with Upbeat Cardiology Solutions to improve cardiac PET/CT access

Positron, a New York-based nuclear imaging company, will now provide Upbeat Cardiology Solutions with advanced PET/CT systems and services. 

Cardiovascular Business
Global shortage of nuclear imaging isotopes may be over

The nuclear imaging isotope shortage of molybdenum-99 may be over now that the sidelined reactor is restarting. ASNC's president says PET and new SPECT technologies helped cardiac imaging labs better weather the storm.

Cardiovascular Business
‘A huge win’: CMS significantly increases Medicare payments for cardiac CT

CMS has more than doubled the CCTA payment rate from $175 to $357.13. The move, expected to have a significant impact on the utilization of cardiac CT, received immediate praise from imaging specialists.