Featured Research

from universities, journals, and other organizations

New way to image bleeding in arteries of the brain identified

Date:
March 8, 2012
Source:
University of Calgary
Summary:
New research shows that by using a CT scan, doctors can predict which patients are at risk of continued bleeding in the brain after a stroke. This vital information will allow doctors to utilize the most powerful blood clotting medications for those with the highest risk.

New research from the University of Calgary's Hotchkiss Brain Institute shows that by using a CT scan (computerized tomography), doctors can predict which patients are at risk of continued bleeding in the brain after a stroke. This vital information will allow doctors to utilize the most powerful blood clotting medications for those with the highest risk.

One in three individuals will continue to accumulate blood in the brain from a leak in a small artery. Pooling blood in the brain has serious consequences, and could lead to disability or even death. Previously, doctors in emergency stroke situations could not discern whether or not a patient's brain bleeding had stopped. Using CT scan images, researchers can now identify "spot signs" that are seen as a small area of contrast on the CT scan. This spot sign is the actual location of bleeding within an artery in the brain.

"Technology that has emerged has allowed us to see the brain's blood flow system in exquisite detail to precisely identify the source of the problem," explains Dr. Andrew Demchuk, Professor in the departments of clinical neurosciences and radiology, and lead author of this study. "We are now at a point where we can harness this technology to develop better treatments for patients with a blockage or breakage in a brain artery. Ultimately this research will confirm when immediate treatment is necessary -- essentially, as soon as you see the spot sign."

This research provides validation of a new imaging marker to identify patients that may need to be treated with clotting medications versus those that don't. "We must be very careful when and to whom these drugs are administered because they are so powerful at forming clots. These drugs can cause clots not only where there are holes and leaks -- but also in intact arteries -potentially causing stroke and heart attacks," says Demchuk. "Therefore this CT scan selection is critical for targeting only those patients at highest risk of continued bleeding."

Clinical trials have now begun to test powerful clotting drugs in these patients.

This University of Calgary-led "PREDICT" study was coordinated with researchers at the Universities of Ottawa and Toronto, along with collaboration amongst nine other centres around the world. Their results were published in the March 8th online edition of the journal Lancet Neurology.


Story Source:

The above story is based on materials provided by University of Calgary. Note: Materials may be edited for content and length.


Journal Reference:

  1. Andrew M Demchuk, Dar Dowlatshahi, David Rodriguez-Luna, Carlos A Molina, Yolanda Silva Blas, Imanuel Dzialowski, Adam Kobayashi, Jean-Martin Boulanger, Cheemun Lum, Gord Gubitz, Vasantha Padma, Jayanta Roy, Carlos S Kase, Jayme Kosior, Rohit Bhatia, Sarah Tymchuk, Suresh Subramaniam, David J Gladstone, Michael D Hill, Richard I Aviv. Prediction of haematoma growth and outcome in patients with intracerebral haemorrhage using the CT-angiography spot sign (PREDICT): a prospective observational study. The Lancet Neurology, 2012; DOI: 10.1016/S1474-4422(12)70038-8

Cite This Page:

University of Calgary. "New way to image bleeding in arteries of the brain identified." ScienceDaily. ScienceDaily, 8 March 2012. <www.sciencedaily.com/releases/2012/03/120308101629.htm>.
University of Calgary. (2012, March 8). New way to image bleeding in arteries of the brain identified. ScienceDaily. Retrieved September 21, 2014 from www.sciencedaily.com/releases/2012/03/120308101629.htm
University of Calgary. "New way to image bleeding in arteries of the brain identified." ScienceDaily. www.sciencedaily.com/releases/2012/03/120308101629.htm (accessed September 21, 2014).

Share This



More Mind & Brain News

Sunday, September 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Could Grief Affect The Immune Systems Of Senior Citizens?

Could Grief Affect The Immune Systems Of Senior Citizens?

Newsy (Sep. 19, 2014) The study found elderly people are much more likely to become susceptible to infection than younger adults going though a similar situation. Video provided by Newsy
Powered by NewsLook.com
Food Addiction Might Be Caused By PTSD

Food Addiction Might Be Caused By PTSD

Newsy (Sep. 18, 2014) New research shows that women who suffer from PTSD are three times more likely to develop a food addiction. Video provided by Newsy
Powered by NewsLook.com
Corporal Punishment on Decline, Debate Renews

Corporal Punishment on Decline, Debate Renews

AP (Sep. 16, 2014) Corporal punishment in the United States is on the decline, but there is renewed debate over its use after Minnesota Vikings running back Adrian Peterson was charged with child abuse. (Sept. 16) Video provided by AP
Powered by NewsLook.com
FDA Eyes Skin Shocks Used at Mass. School

FDA Eyes Skin Shocks Used at Mass. School

AP (Sep. 15, 2014) The FDA is considering whether to ban devices used by the Judge Rotenberg Educational Center in Canton, Massachusetts, the only place in the country known to use electrical skin shocks as aversive conditioning for aggressive patients. (Sept. 15) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins