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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PET/MRI of FAPI radiotracer uptake in Crohn's disease

New imaging technique could change how Crohn's disease is treated

The FAPI radiotracer experts used in this research can bind specifically to the connective tissue cells that cause intestinal wall fibrosis common to Crohn's disease.

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Shoulder injury related to vaccine administration: How the latest MRI data describe the condition

 Although rare, SIRVA made its way into headlines following the widespread rollout of COVID vaccines. This prompted a renewed push among the medical community to better define the side effect.

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MRI scans suggest anti-amyloid drugs can cause accelerated brain volume loss

In some cases, certain classes of anti-amyloid beta (Aβ) drugs resulted in individuals’ brain volume decreasing more rapidly while using the drug than they would have if they had not received treatment at all. 

Medtronic just launched its MRI Care Pathway, a new system that can streamline the process of completing MRI scans for patients with Medtronic MRI compatible cardiac devices.

Medtronic streamlines MRI screening, scanning for patients with implanted cardiac devices

Medtronic launched its MRI Care Pathway, a new system that can streamline the process of completing MRI scans for patients with compatible cardiac devices.

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Radiologists outperform commercially available AI in PI-RADS scoring

The findings contradict prior research that utilized the same software, experts involved in the research noted. This could be due to out-of-distribution data for the DL software, which could impair its performance. 

Details emerge on yet another MRI accident

The accident happened on February 23, and it has since been revealed that it occurred at Kaiser Permanente’s Redwood City Medical Center facility.

Iodine contrast being loaded into a contrast injector in preparation for a cardiac CT scan at Duly Health and Care in Lisle, Illinois. The contrast shortage is causing some healthcare organizations to postpone exams and procedures and ration contrast supplies. Photo by Dave Fornell

How to manage patients in need of contrast-enhanced imaging following an allergic-like reaction

Up to one-third or more of patients who experience moderate or severe allergic-like reactions to ICM must have their imaging protocols revised when subsequent exams involving contrast are requested.

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COVID long haulers have enlarged brain stems

In comparison to a cohort of individuals who were unaffected by either condition, the differences in brain stem volume were found to be significant, according to a paper published recently in Frontiers in Neuroscience. 

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Cardiovascular Business
Positron partners with Upbeat Cardiology Solutions to improve cardiac PET/CT access

Positron, a New York-based nuclear imaging company, will now provide Upbeat Cardiology Solutions with advanced PET/CT systems and services. 

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.