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:4/28/2017)... , ... April 28, 2017 , ... ... been previously exposed to more adverse experiences than children in the general population. ... such as abuse, neglect or other family challenges. While no fault of their ...
(Date:4/28/2017)... ... April 28, 2017 , ... Early detection and elimination ... safety and minimize the cost of development. In this webinar, sponsored by Molecular ... lines and for cardiac toxicity using induced pluripotent stem cells (iPSCs). , In ...
(Date:4/28/2017)... ... April 28, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh in ... responds to and which He does not. Yisrayl says with so many titles and ... true name, but he says with a little Scripture, backed with a lot of research, ...
(Date:4/28/2017)... ... April 28, 2017 , ... Intellitec Solutions announced the ... implement a Microsoft Dynamics GP solution that integrates to their PointClickCare EHR software ... in long-term care, Brooke Grove now has the capability to achieve its goal ...
(Date:4/28/2017)... , ... April 28, 2017 , ... Rob Lowe is ... now he has leant his presence to an educational purpose as the host of ... important one being cancer. In a recent episode, the series focuses on thyroid cancer. ...
Breaking Medicine News(10 mins):
(Date:4/20/2017)... 20, 2017 Research and Markets has ... Manufacturing Services Market Analysis By Service (Manufacturing, Research), By Country, ... - 2025" report to their offering. ... The Latin American pharmaceutical contract manufacturing ... 2025 Low drug registration cost in Latin American ...
(Date:4/19/2017)... 19, 2017 The Mobile X-Ray product segment is ... CAGR during the forecast period Mobile X-Ray segment ... digital mobile X-Ray devices market, which is estimated to be ... at a CAGR of 7% over the forecast period. Mobile ... more than US$ 100 Mn in 2017 over 2016. The ...
(Date:4/19/2017)... YORK , April 19, 2017 ... This report on the prostate cancer therapeutics ... the global market. Increasing prevalence of prostate cancer, ... innovation in the development of new drugs & ... prostate cancer drug due to lesser side effects ...
Breaking Medicine Technology: