Navigation Links
3-D MRI technique helps radiologists detect high-risk carotid disease
Date:9/15/2008

OAK BROOK, Ill. Canadian researchers have used three-dimensional magnetic resonance imaging (3-D MRI) to accurately detect bleeding within the walls of diseased carotid arteries, a condition that may lead to a stroke. The results of the study published in the October issue of Radiology suggest the technique may prove to be a useful screening tool for patients at high risk for stroke.

When major arteries are affected by atherosclerosis, fatty deposits, or plaques, accumulate on the inner lining of the vessel walls. Progression of the disease over time leads to narrowing, restricting blood flow or becoming completely blocked.

Until recently, scientists believed that this narrowing, called stenosis, was responsible for most heart attacks or strokes. But new studies have identified the composition of complicated plaques as being a major cause of vascular events and deaths. These complicated plaques are characterized by surface ulcerations, blood clots and bleeding into the vessel wall.

"There's been a major sea change in our research," said Alan R. Moody, F.R.C.R., F.R.C.P., of the University of Toronto. "We now know that the composition of carotid artery plaque is likely to be more predictive of future stroke events than the amount of stenosis in the vessel."

In the study, conducted at the Sunnybrook Health Sciences Centre in Toronto, researchers performed 3-D MRI on the carotid arteries of 11 patients, age 69 to 81. Complicated plaques were then surgically removed from the patients' diseased arteries and analyzed under a microscope.

The research team found strong agreement between the lesions identified by MRI as complicated plaques and the microscopic analysis of the tissue samples.

"With high spatial resolution 3-D MRI, we are able to noninvasively analyze the tissue within the artery wall and identify small bleeds within rupture-prone plaques that may put patients at risk for future stroke," Dr. Moody said.

According to Dr. Moody, 3-D MRI is a tool that is ideally suited to screen high-risk patients for complicated carotid plaques and to monitor the effects of interventions designed to slow the progress of the atherosclerotic disease. The technique is easy to perform and interpret and takes only a few minutes when added to an MR angiography study, he said.


'/>"/>

Contact: Linda Brooks
lbrooks@rsna.org
630-590-7762
Radiological Society of North America
Source:Eurekalert

Related medicine news :

1. Surgical technique halts cell loss, Parkinsons researchers find
2. New Technique Removes Gallbladder Without External Incisions
3. Vertos Medical Inc. Presents Clinical Data of its MILD™ Procedure at the 5th Annual Innovative Techniques in Spine Surgery Conference in Los Cabos, Mexico
4. Weizmann Institute scientists new technique gets to the root of cancer
5. Corneal transplant technique shows promise in children
6. Researchers hone technique to KO pediatric brain tumors
7. New Technique Harvests Stem Cells at Earlier Stage
8. New ovarian stimulation technique offers more cancer patients the chance to preserve their fertility
9. Automated MRI technique assists in earlier Alzheimers diagnosis
10. Philips Web Site Offers Seniors and Caregivers Tips and Techniques for Preventing Falls
11. SILS Surgical Technique Now Available at MUMC
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... Yisrayl Hawkins, Pastor and ... explains one of the most popular and least understood books in the Holy Scriptures, ... puzzling descriptions that have baffled scholars for centuries. Many have tossed it off as ...
(Date:10/13/2017)... ... 13, 2017 , ... “America On The Brink”: the Christian history of the ... is the creation of published author, William Nowers. Captain Nowers and his wife, ... he spent thirty years in the Navy. Following his career as a naval ...
(Date:10/12/2017)... ... October 12, 2017 , ... The company has developed a ... and regulatory authorities worldwide. From Children’s to Adults 50+, every formula has been ... standard. , These products are also: Gluten Free, Non-GMO, Vegan, Soy Free, ...
(Date:10/12/2017)... , ... October 12, 2017 , ... ... delivery system that we intend to develop to enable prevention of a major ... to severe hearing loss, especially in pediatric patients. For cisplatin, hearing loss is ...
(Date:10/12/2017)... Chapel, FL (PRWEB) , ... October 12, 2017 , ... ... is holding a treadmill relay – Miles by Moonlight to raise money for the ... donating $300 or more. , Teams will work together to keep their treadmills ...
Breaking Medicine News(10 mins):
(Date:10/4/2017)... to the Centers for Disease Control and Prevention (CDC), influenza vaccination ... is helping communities across Massachusetts , Connecticut ... flu shots through the end of the month. *Some exclusions ... ... shot is by the end of October, according to the Centers for ...
(Date:10/2/2017)... PHILADELPHIA , Oct. 2, 2017 Halo Labs announces ... particle analysis system called the HORIZON at MIBio 2017 in ... analyzes subvisible and visible particulate matter in biopharmaceutical samples with unprecedented ... use of the novel technique Backgrounded Membrane Imaging. ... The HORIZON subvisible particle analysis system ...
(Date:9/27/2017)... NEW YORK , Sept. 27, 2017  DarioHealth Corp. (NASDAQ: ... data solutions, today announced that its MyDario product is expected to appear ... listings for when The Dr. Oz Show airs in your area: ... The nine-time Emmy award-winning, The ... ...
Breaking Medicine Technology: