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.

Smart Choice MRI raises $6.5 million, eyes expansion into Chicago

Smart Choice MRI, a Wisconsin-based healthcare provider known for providing MRIs for an all-inclusive fee of $600 or less, has raised $6.5 million to expand to other markets, the company announced this week.

MRI scans ... printed in 3D?

MRI scans can now be turned into 3D CAD models, according to a recent article posted by the 3D printing website 3DPrint.com. Those models can then be printed on a 3D printer. Writer Michelle Matisons typed up a summary of the breakthrough on Nov. 28.

FAU, University MRI reach five-year research agreement

Florida Atlantic University (FAU) and imaging provider University MRI have announced a new five-year joint research agreement, giving FAU researchers access to state-of-the-art imaging technology such as a 3T MRI scanner for functional MR scans and MR-guided focused ultrasound.

Siemens to help professionals pay for MR certification exams

Siemens Healthcare announced this week that it will be sponsoring American Board of Magnetic Resonance Safety (ABMRS) credentialing examinations to certify professionals who oversee the safety of MR sites in the United States. 

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Examining the rise of preoperative breast MRI

Despite being associated with more ancillary investigations, more mastectomies, and longer wait times before surgery, preoperative breast MRI (pMRI) has become significantly more common in recent years, according to a Canadian study published by JAMA Oncology.

Deerfield Imaging announces acquisition of IMRIS

Deerfield Imaging announced last week that it has completed its acquisition of “certain assets and liabilities” of IMRIS, a company that specializes in image-guided therapy and had filed for bankruptcy.

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Shortened protocols could cut costs, improve access to breast MRI

It may be possible to shorten breast MRI protocols and give more patients access to the modality’s benefits, according to a study published in Academic Radiology.

Feeling overworked? Rise in CT, MRI images adds to radiologist workload

Both CT and MRI utilization and the number of images being collected for those exams have increased significantly in recent years, according to a recent study published in Academic Radiology. The authors believe this could potentially lead to an increase in errors made by overworked radiologists.

Around the web

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.

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.

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