News | July 29, 2008

Peak Stress High-Resolution Heart Images Now Possible

July 30, 2008 - Researchers at the Ohio State University Medical Center have designed equipment to provide high resolution images of the heart at peak stress level - a critical stage of testing - that have previously been difficult to obtain using standard testing procedures.

Now superior images of the heart are obtained with a test lasting less than one hour.

“In the past, we were constrained by the time lapse between the completion of exercise and capturing the images,” said Orlando “Lon” Simonetti, Ph.D., associate professor of internal medicine and radiology. “We now have the ability to exercise patients to peak stress and obtain a high definition image of their heart within 60 seconds, which helps us more accurately identify exercise-induced abnormalities. OSU Medical Center is the only place in the world performing treadmill exercise stress tests inside the MRI scan room.”

The standard design of treadmills has made exercise stress testing a challenge near the large magnetic field generated by the MRI equipment. Simonetti and his team, working with graduate students from Ohio State’s College of Engineering and faculty from the OSU Agricultural Technical Institute, modified a treadmill for use in close proximity to the MRI exam table. Magnetic components were replaced with non-magnetic stainless steel and aluminum equivalents.

While patients perform the treadmill exercise test, they are monitored using a 12-lead electrocardiogram system that is disconnected after exercise. Heart rate and rhythm are then monitored with a wireless, MRI-compatible electrode unit while patients undergo a rapid, real-time imaging procedure that takes less than one minute.

“Cardiovascular disease is the leading cause of death in the United States and by combining our medical expertise with other disciplines, we can develop safe approaches for improved diagnosis and treatment,” said Subha Raman, M.D., associate professor of internal medicine in OSU Medical Center’s division of cardiovascular medicine. “While current forms of stress testing have been helpful, combining exercise stress with cardiac magnetic resonance imaging allows us to better measure the presence and extent of heart disease with a clarity not previously possible.”

For more information: www.medicine.osu.edu

Related Content

Russian Team Developing New Technology to Significantly Reduce MRI Research Costs
News | Magnetic Resonance Imaging (MRI)| January 16, 2018
January 16, 2018 — Researchers from the NUST MISIS Engineering Center for Industrial Technologies in Russia have deve
Videos | Magnetic Resonance Imaging (MRI)| December 13, 2017
Emanuel Kanal, M.D., director of MRI services and professor of radiology and neuroradiology at the University of Pitt
GE Healthcare Launches Blanket-Like Air Technology MRI Coils
Technology | Magnetic Resonance Imaging (MRI)| December 13, 2017
GE Healthcare announced U.S. FDA 510(k) clearance of its new Air Technology, what it calls an industry-first suite of...
Toshiba Vantage Galan 3T XGO Edition MRI Features New Advanced Gradient
Technology | Magnetic Resonance Imaging (MRI)| December 11, 2017
Toshiba Medical, a Canon Group company, demonstrated the Vantage Galan 3T XGO Edition with the all-new Saturn X...
Toshiba Launches Vantage Elan Zen Edition MR for Enhanced Patient Comfort
Technology | Magnetic Resonance Imaging (MRI)| December 05, 2017
Toshiba Medical, a Canon Group company, introduced its newest magnetic resonance (MR) system, the Vantage Elan/Zen...
FDA Clears Siemens Magnetom Terra 7T MRI Device

The FDA has cleared the Siemens Magnetom Terra as the first 7T MRI system in the U.S. to gain regulatory approval.

Technology | Magnetic Resonance Imaging (MRI)| October 12, 2017
The U.S. Food and Drug Administration (FDA) cleared the first 7 Tesla (7T) magnetic resonance imaging (MRI) device,...
MR Solutions Showcases Multimodality MRI Solutions on Two Continents
News | Magnetic Resonance Imaging (MRI)| October 11, 2017
MR Solutions took their cryogen-free preclinical multimodality magnetic resonance imaging (MRI) solutions on tour in...
Toshiba Showcases MRI Workflow Enhancements at RSNA 2017
News | Magnetic Resonance Imaging (MRI)| September 21, 2017
September 21, 2017 — Toshiba Medical will highlight its latest...
GE Healthcxare Signa Pioneer MAGIC six contrasts in one scan software by SyntheticMR.

The MRI software enables several different contrasts to be obtained from one scan, shortening scan times.

Feature | Magnetic Resonance Imaging (MRI)| August 31, 2017
August 31, 2017 — The U.S. Food and Drug Administration (FDA) has granted market clearance for SyntheticMR’s SyMRI.
ISMRM Issues Guidelines for MRI Gadolinium Contrast Agents
News | Magnetic Resonance Imaging (MRI)| August 15, 2017
The International Society for Magnetic Resonance in Medicine (ISMRM) has provided new guidance in the use of contrast...
Overlay Init