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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MR-Link receives development grant from NIH

A coin-sized gadget that would allow for simultaneous MR imaging has received a $228,325 Small Business Technology Transfer (STTR) grant from the National Institutes of Health (NIH).

April 16, 2018

Montreal's MRI simulator is helping kids avoid sedation

North America’s first MRI simulator—a downsized model of enclosed scanners clinicians are used to—has been installed in a Montreal hospital, and officials are saying it’s already helping kids wind down and skip anesthesia ahead of their own procedures.

April 13, 2018

CMS finalizes decision to cover MRIs for patients with implantable cardiac devices

CMS published a decision memo this week finalizing its proposal to cover MRI scans for Medicare beneficiaries with implantable cardiac devices such as pacemakers and cardioverter defibrillators.

April 13, 2018

Breast MRIs are on the rise—but not among women who need them most

Communities are failing to follow guidelines that ensure women at an increased risk for breast cancer receive additional MRI screening, according to research from the University of New Mexico’s School of Medicine.

April 11, 2018

Civic official says ‘overburdened staff’ at least partly responsible for MRI-related death in India

A 32-year-old man died on Jan. 27 after being sucked into an MRI chamber at BYL Nair Hospital in Mumbai, India. The civic investigation into the man’s death has not yet released its official report, but a senior official with knowledge of the investigation said at least part of the blame goes to “overburdened staff and facilities at hospitals.”

April 11, 2018
‘Notably high’ rates of PTSD, depression and anxiety seen in patients with implantable heart devices

New cardiac MRI process can improve results, ease restrictions on patients

A team of researchers from Cedars-Sinai Medical Center in Los Angeles have developed a new method for cardiac MRI that can be complete in just 90 seconds. The technique also allows patients to breathe during testing, with promises of more accurate, more reliable results.

April 9, 2018

How a Michigan practice cut its MRI wait times from 101 days to 5

As radiology practices grapple with the specialist shortages and drawn-out wait times that accompany a nationwide push for more specialized MRI, one Michigan practice is successfully solving both problems.

April 6, 2018
probably benign abnormalities on mammogram

Offshoot of digital mammography could provide alternative to breast MRI

An adaptation of digital mammography could cut image acquisition times and provide a new screening method to patients unable to undergo breast MRI, but added time commitments could make the technique difficult to implement in clinical practice, a case study published in the Journal of the American College of Radiology suggests.

April 5, 2018