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.

Caltech scientists develop way to visualize gene expression using MRI

Scientists from the California Institute of Technology (Caltech) have developed a method to visualize gene expression in cells using magnetic resonance imaging (MRI).

January 6, 2017

MR Theater improves patients experience during scans

Toshiba Medical is giving patient comfort a new definition with its new MR Theater, a virtual experience that allows patients to undergo the exam in a relaxing environment while providing clinicians with high quality images.

December 13, 2016

Pros and cons of voluntary pre-draft MRIs for MLB draft prospects

As part of the new collective bargaing agreement in Major League Baseball (MLB), the top 50 pitching prospects in each year's draft can voluntarily undergo an MRI scan to provide a clearer background of their health. 

December 9, 2016

Surgical platform with real-time MRI guidance to be featured at Pediatric Neurosurgical Conference

The medical device company, MRI Interventions announced its ClearPoint Neuro Navigation System will be featured at the 45th Annual Meeting of the American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Pediatric Neurological Surgery.

December 5, 2016
CT Scan

RSNA 2016: The combined advantages of PET/MR hybrid imaging

A Nov. 29 presentation at RSNA 2016 in Chicago outlined the challenges and benefits to using hybrid PET/MR imagining to provide the clearest images possible in “Emerging Technology PET/MRI Opportunities and Challenges."

November 29, 2016

FDA approves full-body MRI scans for Proclaim Elite System

A full-body MR conditional labeling has received approval from the U.S. Food and Drug Administration (FDA) for the Proclaim Elite Spinal Cord Stimulation System.

November 21, 2016
Tiron C.M. Pechet, MD

Improving workflows with McKesson Radiology advanced visualization: a 3D MR success story

McKesson

Radiologists operate in a fast-paced work environment, juggling a combination of tasks that includes interpreting studies, and calls from referring physicians.

November 21, 2016

MRI being applied to diffuse salt in Iberian ham

The salt content of ham delivers texture, flavor and is what allows the ham itself to mature, as it wouldn’t be able to do so without it, unless a team of researchers are able to diffuse salt non-destructively using MRI.

November 18, 2016

Around the web

"This was an unneeded burden, which was solely adding to the administrative hassles of medicine," said American Society of Nuclear Cardiology President Larry Phillips.

SCAI and four other major healthcare organizations signed a joint letter in support of intravascular ultrasound. 

The newly approved AI models are designed to improve the detection of pulmonary embolisms and strokes in patients who undergo CT scans.

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