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.

an MRI brain scan and a stethoscope

AI helps bolster radiologists’ ability to detect ADHD using MRI

This breakthrough could help providers pinpoint other neurological conditions, experts noted in a study published Wednesday, Dec. 11, in Radiology: Artificial Intelligence. 

December 11, 2019

Key brain region smaller in women who use birth control pills, MRI scans reveal

Women who use oral contraceptives have a “significantly” smaller area of the brain that’s responsible for regulating everything from body temperature to mood, appetite, sex drive and sleep cycles. 

December 5, 2019

Doc notches key win in court battle over certificate of need for MRI

Gajendra Singh, MD, has been working for years to open up more options for consumers in the Winston-Salem area, but he reached a roadblock last year.

November 26, 2019

Use of CT and MRI to diagnose eye problems in the ED skyrocketing, underlining need for guidance

Johns Hopkins researchers recently made that determination by scouring data from millions of ED visits conducted between 2007 and 2015. 

November 25, 2019
baby bottle - drugs

Opioid exposure in womb alters infants’ brain function, MRI scans reveal

Indiana University School of Medicine recently made that discovery using resting state functional MRI to scan the brains of 16 sleeping newborns. 

November 25, 2019
Referral

How one hospital system is using patient-centered referral forms to reduce unnecessary CT and MRI scans

The inappropriate use of imaging tests to assess headaches and lower back pain is an ongoing issue in Canada, one that’s contributing to ballooning care costs and long wait times. 

November 14, 2019
an MRI brain scan and a stethoscope

Harvard researchers use powerful 7T MRI to fill in details, root out progression of MS

"The 7T MRI scanner affords us new ways of viewing areas of damage in neurologic diseases such as MS that were not well seen using 3T MRI; it's capturing nuances that we would otherwise miss," said study co-author Jonathan Zurawski. 

November 12, 2019

Simple MRI method could help predict complications early in pregnancy

UCLA scientists made the early diagnosis using what’s called pseudo-continuous arterial spin MRI, pinpointing patients who had low blood flow to their placentas

November 8, 2019

Around the web

"This was an unneeded burden, which was solely adding to the administrative hassles of medicine," said American Society of Nuclear Cardiology President Larry Phillips.

SCAI and four other major healthcare organizations signed a joint letter in support of intravascular ultrasound. 

The newly approved AI models are designed to improve the detection of pulmonary embolisms and strokes in patients who undergo CT scans.

Trimed Popup
Trimed Popup