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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New imaging technique performs MRI scans of individual atoms

Scientists have developed a new MRI technique that can capture images of individual atoms.

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How Secure Is That Scanner?

In a world of networked medical devices, it’s not hard to imagine a radiology-heavy cyberattack that is not only malicious but also ingenious.
 

Cardiac MRI provides significant value when treating cocaine-induced disease

Cardiac MRI can help providers differentiate between acute and chronic cocaine-induced cardiovascular diseases, according to a new analysis published in Radiology: Cardiothoracic Imaging.

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New metamaterial improves MRI performance

Researchers from Boston University have developed a new magnetic metamaterial that could help improve the signal-to-noise ratio (SNR) of MRI scanners, sharing their findings in Communications Physics.

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Volpara Health Technologies to acquire MRS Systems

Volpara Health Technologies, the parent company of Volpara Solutions, has signed an agreement to acquire Seattle-based MRS Systems, Inc.

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A key benefit, and potential harm, of adding MRI to breast cancer screening programs

Surveillance MRI can help imaging providers detect more breast cancers, according to a new study published in Radiology. However, it also leads to a much higher biopsy rate.

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SBRT an effective local treatment for HCC patients

“The results of this research are extremely exciting, as it will significantly impact clinical care,” reported study author Mishal Mendiratta-Lala, MD, with the division of abdominal radiology at Michigan Medicine in Ann Arbor.

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2 new trials explore the potential of whole-body MRI for improving cancer care

Whole-body MRI (WB-MRI) shows promise as an alternative to multi-modality staging of colorectal cancer and non-small-cell lung cancer (NSCLC), according to new studies published in The Lancet Gastroenterology & Hepatology and The Lancet Respiratory Medicine.

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