Featured Research

from universities, journals, and other organizations

New hope for tiny hearts

Date:
April 4, 2011
Source:
The Research Council of Norway
Summary:
Scientists are making advances in imaging methods for both ultrasound and magnetic resonance (MR) imaging. One benefit will be an enhanced ability to discover heart defects in newborns.

The Medical Imaging Laboratory in Trondheim is making advances in imaging methods for both ultrasound and magnetic resonance (MR) imaging. One benefit will be an enhanced ability to discover heart defects in newborns.

"Making the correct diagnosis is the greatest challenge facing paediatric cardiologists," explains Siri-Ann Nyrnes, Consultant at the Paediatric Department of St. Olav's Hospital. "The organs are so small, and current ultrasound imaging can only provide limited information. A cardiologist needs many years of experience to be able to make a diagnosis with any certainty." Dr Nyrnes is part of the Medical Imaging Laboratory (MI Lab), whose host institution is the Norwegian University of Science and Technology (NTNU).

MI Lab is one of Norway's 14 original Centres for Research-based Innovation (SFI) which have received funding from the Research Council of Norway since 2007.

New imaging of blood flow

Colour Doppler imaging has been the standard in ultrasound since the late 1980s. MI Lab's new method, called blood flow imaging (BFI), provides two-dimensional blood flow information by visualising blood speckle movement superimposed on colour Doppler images. The resulting pattern displays blood flow regardless of the ultrasound beam orientation -- providing greater information about flow direction as well as a more intuitive visualisation. Blood flow rate can also be measured, and doctors will soon be able to determine the actual volume of blood flowing through normal and pathological openings.

In a pilot study, researchers examined 13 children with ventricular septal defect (a hole in the wall between the right and left ventricles of the heart, the most common heart defect in newborns). Using both new and conventional blood flow imaging methods, the researchers concluded that compared to the colour Doppler, the new method provides a significantly more detailed image of blood flow.

3D imaging in future

"The images in this study were created by the physician and technician working together, so the latter could see first-hand what we physicians are contending with, and what we need in order to improve our diagnostics," says Dr Nyrnes. "The method is being refined with each patient."

Now MI Lab is taking the method a step further by using plane wave imaging, which can generate an image more quickly. A pilot study of five newborns indicated that plane wave imaging yielded 5-10 times more images per second, with a substantially higher image quality.

"Quantifying the blood flow is our next objective," says engineer and research fellow Lasse Lψvstakken. "Ultimately we want to develop this method to provide blood flow information in 3D."


Story Source:

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


Cite This Page:

The Research Council of Norway. "New hope for tiny hearts." ScienceDaily. ScienceDaily, 4 April 2011. <www.sciencedaily.com/releases/2011/03/110315105202.htm>.
The Research Council of Norway. (2011, April 4). New hope for tiny hearts. ScienceDaily. Retrieved October 1, 2014 from www.sciencedaily.com/releases/2011/03/110315105202.htm
The Research Council of Norway. "New hope for tiny hearts." ScienceDaily. www.sciencedaily.com/releases/2011/03/110315105202.htm (accessed October 1, 2014).

Share This



More Health & Medicine News

Wednesday, October 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Cases Keep Coming for Monrovia's Island Hospital

Ebola Cases Keep Coming for Monrovia's Island Hospital

AFP (Oct. 1, 2014) — A look inside Monrovia's Island Hospital, a key treatment centre in the fight against Ebola in Liberia's capital city. Duration: 00:34 Video provided by AFP
Powered by NewsLook.com
Ebola Puts Stress on Liberian Health Workers

Ebola Puts Stress on Liberian Health Workers

AP (Oct. 1, 2014) — The Ebola outbreak is putting stress on first responders in Liberia. Ambulance drivers say they are struggling with chronic shortages of safety equipment and patients who don't want to go to the hospital. (Oct. 1) Video provided by AP
Powered by NewsLook.com
Doctors Reassure Public Ebola Patient Won't Cause Outbreak

Doctors Reassure Public Ebola Patient Won't Cause Outbreak

Newsy (Sep. 30, 2014) — After the announcement that the first U.S. patient had been diagnosed with Ebola, doctors were quick to say a U.S. outbreak is highly unlikely. Video provided by Newsy
Powered by NewsLook.com
TX Hospital Confirms Patient Admitted With Ebola

TX Hospital Confirms Patient Admitted With Ebola

AP (Sep. 30, 2014) — Medical officials from Texas Health Presbyterian Hospital confirm they are treating a patient with the Ebola virus, the first case found in the US. (Sept. 30 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:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

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