HOME >> MEDICINE >> NEWS
Imaging technique predicts success of bypass surgery or angioplasty

CHICAGO --- An advance in magnetic resonance imaging (MRI) developed by researchers at Northwestern University Medical School and Siemens Medical Systems has radically improved the ability to determine which patients with coronary artery disease will benefit from bypass surgery or angioplasty.

The investigators, led by Northwestern cardiologist Raymond J. Kim, M.D., and basic scientist Robert M. Judd, used an improved version of a technique known as contrast-enhanced MRI in 50 patients with heart disease who were scheduled to have bypass surgery or coronary angioplasty.

As reported in an article in the Nov. 16 issue of The New England Journal of Medicine, the scientists found that contrast-enhanced MRI boosted image intensity by 10-fold over previous methods and enabled the researchers without stress testing or use of radioactive tracers -- to distinguish between reversible and irreversible heart injury.

Drs. Kim and Judd explained that with this technique, heart regions damaged by heart attack or other coronary artery disease appear on MRI as hyperenhanced, or "bright."

The researchers found that areas of the heart that were "dark" on the MRI recovered following bypass surgery or angioplasty, whereas "bright" areas did not recover after surgery.

The research group, which consisted of cardiologists, basic scientists and physicists, also reported that contrast-enhanced MRI is the first technique to allow physicians to view the extent of damage within the heart wall following a heart attack.

The wall of the heart is approximately 10 millimeters thick. In a heart attack, the cells in the inner part of the heart wall die first and the damage progresses outward.

"We found that heart muscle function at the injury site was more and more likely not to improve as the extent of bright areas increased through the wall of the heart," Kim said.

The ability to look at damage within the wall of the heart is possible because
'"/>

Contact: Elizabeth Crown
e-crown@northwestern.edu
312-503-8928
Northwestern University
14-Nov-2000


Page: 1 2

Related medicine news :

1. Imaging tool may help physicians diagnose bipolar disorder
2. Imaging study finds a structural difference in the brains of cocaine addicts
3. Imaging studies clarify brain changes associated with language deficits in autism
4. UCIs Brain Imaging Center chosen to help advance nations Roadmap for Medical Research
5. AIUM regional course, Doppler Imaging 2004: From Basic Applications to New Frontiers
6. Imaging test could be used to diagnose schizophrenia
7. Imaging children with ADHD
8. Imaging technique may diagnose breast cancer without biopsy
9. Imaging study reveals effect of smoking on peripheral organs
10. Nuclear Cardiac Imaging: Society of Nuclear Medicine publishes new book
11. Imaging tool helps locate recurrent prostate cancer

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... ... October 13, 2017 , ... ... Hannah Randall, PharmD ‘17, and Jennifer Huggins, PharmD ’17, along with clinical ... the primary prevention of cardiovascular diseases during the 15th Annual Women’s Health ...
(Date:10/13/2017)... ... 13, 2017 , ... Apple Rehab Shelton Lakes , which specializes in ... the facility as part of a disaster drill on October 3rd. , Apple Rehab ... City Emergency Manager, as well as the Connecticut Long Term Care Mutual Aid ...
(Date:10/13/2017)... BASKING RIDGE, N.J. (PRWEB) , ... October 13, 2017 , ... ... second annual Holly Day Market. Featuring a collection of specialty vendors and unique items ... myriad of personalized and quality-focused health and wellness services offered by the VNA. ...
(Date:10/13/2017)... ... ... Global Healthcare Management’s 4th Annual Kids Fun Run brought out many kids this ... by Global Healthcare Management’s CEO, Jon Letko, is aimed at getting kids excited about ... ages; it is a non-competitive, non-timed event, which is all about having fun and ...
(Date:10/13/2017)... , ... October 13, 2017 , ... ... be giving viewers the lowdown on sciatica in a new episode of "Success ... focuses on current events and innovation and investigates each subject in-depth with passion ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... Diplomat Pharmacy, Inc. (NYSE: DPLO ... LLC , and named its founder as Diplomat,s chief ... Tennessee , will operate under Diplomat subsidiary ... offerings for health care partners to include IT outsourcing, ... "In an interoperable world, technology delivers comprehensive insight ...
(Date:10/2/2017)... announces the European launch of their new low volume, high throughput ... Cambridge, U.K on October 4th. The new ... unprecedented speed and sensitivity while using far less sample volume through ... ... ...
(Date:9/28/2017)... , Sept. 28, 2017 Cohen Veterans Bioscience ... the use of wearable and home sensors for real-time ... Early Signal Foundation, a nonprofit organization focused on disruptive ... provide an affordable analytical system to record and integrate ... ...
Breaking Medicine Technology:
Cached News: