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.

FDA report details MRI accident caused by sex toy

An FDA adverse event report suggests that although the patient involved in the accident was screened for metal prior to undergoing her MRI, she did not disclose the presence of a “butt plug." 

The new MRI contrast agent gadopiclenol, sold under the trade names Elucirem and Vueway by Bracco and Guerbet, used 50% less gadolinium that current MRI agents. #RSNA22 #RSNA

New contrast agent earns positive safety classification from ACR

The ACR Committee on Drugs and Contrast Media stated that exposure to the gadolinium-based contrast agent represents a “sufficiently low or possibly nonexistent” risk to patients.

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Prenatal MRI shines light on the implications of maternal stress during pregnancy

These findings warrant serious consideration by physicians caring for pregnant women in the future, as the link between poor mental health and placental development remains “underappreciated.”

profits revenue finance money

RadNet revising 2023 financial projections, adding capacity amid ‘heavy demand’ for imaging

PET/CT saw the biggest gains, up almost 21% year-over-year compared to Q1 of 2022, with the group collecting $390M in revenue (up 14%). 

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RadNet, cancer care advocates praise passage of bills to boost imaging coverage

The policy changes forbid insurers from saddling patients with out-of-pocket costs for services associated with lung and breast cancer.

Learning app improves reader performance for prostate MRI

Interactive teaching app improves reader performance on prostate MRI

Experts involved in the app’s creation suggested that because it was designed to mimic real life, its use among emerging radiologists could potentially help address the issue of subjectivity and reader variability in interpreting mpMRI scans of the prostate.

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Imaging giant RadNet earns FDA greenlight for AI-based prostate MRI software

“Quantib Prostate 3.0” offers a suite of tools to help radiologists and urologists improve the quality of their assessments.

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Radioactive substances unnecessary in new method for measuring brain glucose metabolism

Rather than administering radiolabeled glucose for exams, imagers give patients a small amount of a harmless glucose solution that is said to be equivalent to a can of a carbonated drink.