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.

Sharmila Majumdar honored with ISMRM 2016 Gold Medal

The International Society of Magnetic Resonance in Medicine (ISMRM) announced this week it has awarded its 2016 Gold Medal to Sharmila Majumdar, PhD, professor and vice chair for research of the department of radiology and biomedical imaging at the University of California, San Francisco (UCSF). Majumdar is also director of the Musculoskeletal and Quantitative Imaging (MQIR) group at UCSF. 

May 6, 2016

Radiologist’s new startup dramatically speeds up MR spectroscopy analysis

Thanks to a generous grant, a radiologist is now turning her years-old idea into a new healthcare startup. 

May 5, 2016

Scientist indicted for trying to send MRI part to Iran sees charges dropped

Federal prosecutors have dismissed an indictment against Mohamad Reza Nazemzadeh, a scientist who tried to purchase and send a coil for an MRI scanner to Iran in 2011 without first acquiring a license from the government. 

May 3, 2016

Businessman donates $3 million to Canadian hospital for MRI equipment

David Kampe, a local businessman, has said he is donating $3 million to Penticton Regional Hospital in Penticton, British Columbia, Canada, to help the hospital purchase a new MRI machine. 

April 25, 2016

Researchers to use Toshiba MRI system to study football-related brain injuries

Researchers from the University of California Irvine are teaming up with Toshiba America Medical Systems to conduct a study investigating the presence of cerebral microbleeds in football players at the high-school level as a potential precursor for CTE.

April 12, 2016

Toshiba MRI System Tapped for Landmark UCI Study on Cerebral Microbleeds in High School Football Players

TUSTIN, Calif.--(BUSINESS WIRE)--As chronic traumatic encephalopathy (CTE) stands in the national spotlight for high impact sports, the University of California, Irvine has partnered with Toshiba America Medical Systems, Inc. for a first-of-its-kind study of cerebral microbleeds (CMB) in high school football players as a potential precursor to CTE. The study will utilize Toshiba’s Vantage TitanTM 3T MR system as the key diagnostic tool, taking advantage of its non-invasive capabilities.

April 12, 2016

AMRA announces new marketing agreement with GE Healthcare

AMRA, a global medical technology company based out of Linköping, Sweden, has entered into a new marketing agreement with GE Healthcare, the company announced at this week’s European Congress of Radiology in Vienna, Austria. 

March 4, 2016

MRI use connected to rising gadolinium levels in San Francisco Bay

Numerous studies have shown evidence of gadolinium (Gd) retention in the brains of contrast MRI patients. Now, Gd is showing up in the San Francisco Bay, particularly in an area immediately surrounded by hospitals and other facilities that use Gd-based contrast agents. 

February 8, 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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