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.

RSS icon
RSNA attendees through bore of the new release Philips CT 5300 scanner at RSNA 2024. Three new CT systems were released at RSNA that included numerous AI enhancements. Photo by Dave Fornell. #RSNA #RSNA24 #RSNA2024

Key takeaways from RSNA 2024 for AI, CT, MRI and the radiology staffing shortage

Several key trends were evident at the Radiological Society of North America 2024 meeting, including new CT and MR technology and evolving adoption of artificial intelligence.

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.

Siemens Healthineers

Siemens Healthineers inks 10-year, $105M imaging value partnership with large medical center

The deal is with the Ohio State Wexner Medical Center, covering equipment purchases and consulting services. 

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

CMS approves new MRI standards related to remote scanning

Accrediting body IAC said revisions help imaging facilities ensure the safe delivery of MRIs, including when key personnel are located off-site.

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. 

doctor examines patient data on their tablet

Radiologists are more accurate, confident when they know the full story

Providing radiologists with key details about the patient's symptoms can go a long way toward improving the quality of their work. 

Displaying 9 - 16 of 1060
Design by Adaptive Theme