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.

Thumbnail

Some soccer players are at risk of brain damage similar to CTE

American football isn’t the only contact sport that has medical experts concerned with the brain health of athletes. New evidence suggests certain soccer players may be at heightened risk of long-term brain abnormalities, too. 

Thumbnail

GBCA dose reduced by up to 80% with help from deep learning-based image reconstruction

Although GBCAs are largely considered safe, there are concerns about how gadolinium retention could affect patients who require repeated imaging.

Thumbnail

Vaping may affect vascular function as much or more than smoking, MRI study shows

E-cigarettes, or vapes, are largely considered a safer alternative to smoking tobacco cigarettes, but new MRI data suggest they still pose significant risk to users’ health. 

technologist MRI rad tech radiologic radiology

Deep learning-based reconstruction nearly halves spinal MRI acquisition times

The accelerated exam does not come at the expense of image quality, according to new work published in Academic Radiology. 

Thumbnail

MRI guidance significantly reduces radiotherapy side effects compared to CT

A recent comparison of the two modalities’ utility for guiding radiation therapy for prostate cancer shows numerous benefits for MRI over CT.

Thumbnail

Socioeconomic disadvantage during childhood linked to altered brain structure later in life, MRIs show

New MRI data highlights associations between being born into disadvantaged communities and decreased volume of multiple areas in the brain. What’s more, these findings hold true despite educational attainment and late-life income.  

Thumbnail

Deep learning reconstruction cuts prostate MRI acquisition time

And the shorter scan time does not come at the expense of image quality.

Thumbnail

The Mediterranean diet may slow brain aging, MRI study shows

Following the Mediterranean diet, especially one rich with plant-based foods, could have significant benefits for cognitive health. 

Around the web

GE HealthCare designed the new-look Revolution Vibe CT scanner to help hospitals and health systems embrace CCTA and improve overall efficiency.

Clinicians have been using HeartSee to diagnose and treat coronary artery disease since the technology first debuted back in 2018. These latest updates, set to roll out to existing users, are designed to improve diagnostic performance and user access.

The cardiac technologies clinicians use for CVD evaluations have changed significantly in recent years, according to a new analysis of CMS data. While some modalities are on the rise, others are being utilized much less than ever before.