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
Multiple sclerosis ribbon MS

Radiologist diagnoses multiple sclerosis via MRI, but patient doesn’t find out until 8 years later

A Massachusetts multispecialty center has dodged a malpractice suit after the patient missed the state's seven-year deadline to file. 

Thumbnail

Understanding the structural factors that fuel racial disparities in the use of prostate MRI

Neighborhood-level socioeconomic status, racialized residential segregation, and socioeconomic status all play a part, according to research published in JAMA Oncology. 

liver cancer

Patients prioritize higher imaging sensitivity over lower costs when weighing HCC screening options

These results have important implications for understanding patient preferences as determinants of adherence, imaging experts wrote recently. 

Thumbnail

Imaging-center chain CEO gets 5 years in prison for $250M MRI bribe scheme

A U.S. district judge also ordered Sam Solakyan, 40, to pay nearly $28M in restitution to the insurers he scammed. 

breast cancer mammography mammogram

Simple switches help hospital reduce excess patient visits, biopsy wait times after breast MRI

Michigan Medicine had seen breast MRI volumes climb 94% while related biopsies leapt 150%, prompting leaders to launch their quality initiative. 

Thumbnail

Variability in prostate MRI interpretation underlines importance of second-opinion reviews

Diagnostic differences between community providers and hospitals highlight the need for ongoing education, quality assurance and feedback, experts charged. 

Hyperfine doling out thousands of free brain MRIs, RSNA21’s final tallies, plus more vendor news

Also, Royal Philips expands through acquisition, U.K. antitrust regulators investigating Microsoft's acquisition of Nuance, and Fujifilm installs an MRI scanner in an NFL stadium. 

Thumbnail

FDA clears tool for producing muscle assessment scores from MRI scans

AMRA Medical said its product uses a rapid neck-to-knee imaging protocol to produce actionable, patient-specific reports. 

Displaying 209 - 216 of 830

Around the web

Cardiovascular Business
Global shortage of nuclear imaging isotopes may be over

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.

Cardiovascular Business
‘A huge win’: CMS significantly increases Medicare payments for cardiac CT

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.

Cardiovascular Business
GE HealthCare moves PET/CT scanner production to United States

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

Design by Adaptive Theme
Trimed Popup
Trimed Popup