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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Patient dies after oxygen tank is sucked into MRI machine

Police are investigating why the cylinder was brought into the imaging suite but believe the built-in air supply system may have been malfunctioning. 

Real-world fast brain MRI in outpatient setting offers ‘substantial’ business benefits

An outpatient center could potentially add 10 more slots for a scanner in 1 day, producing $1.8 million in additional revenue, experts wrote in Academic Radiology

prostate cancer PSA

MRI and genetic testing may help curb overtreatment of prostate cancer

Yale School of Medicine experts analyzed tens of thousands of commercial claims for their analysis, published in JAMA Network Open

cardiac MRI chetan University of Minnesota

First-of-its-kind study proves cardiac MRI ‘powerful’ for assessing suspected heart tumors

Scientists believe these findings will help shape future guidelines, appropriateness documents and health policies on this topic. 

University of Utah Health

Worker dies after MRI machine plummets outside local hospital

"We are incredibly saddened to learn that someone tragically died in this incident," said University of Utah Health executive Alison Flynn Gaffney. 

Goldberg MRI stroke brain

Specialists collaborate to implement ‘game changer’ emergency MRI protocol for wake-up stroke

Up to 27% of acute ischemic strokes occur while an individual is sleeping, making it difficult to discern when the blood blockage occurred.

Smart Choice MRI

Former executives of now-defunct Smart Choice MRI eye expansion with new imaging center chain

Atlanta-based ImageLink already has 14 locations across Georgia and Ohio, while a 15th just recently opened in Boynton Beach, Florida. 

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Standardizing MRI spine degradation definitions bolsters neuro, musculoskeletal radiologist agreement

Substantial variability in interpretation exists between rad subspecialties and spine clinicians, experts detailed in Current Problems in Diagnostic Radiology.

Around the web

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.

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.

The all-in-one Omni Legend PET/CT scanner is now being manufactured in a new production facility in Waukesha, Wisconsin.

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