Featured Research

from universities, journals, and other organizations

Device 'Listens' To The Distinctive Sound Of Cholesterol

Date:
May 14, 1998
Source:
Rensselaer Polytechnic Institute
Summary:
Rensselaer has patented a device that listens to blood flowing in a patient's carotid artery and tells a doctor immediately if the artery is blocked by dangerous cholesterol deposits. The device provides an inexpensive, non- invasive screening system that doctors can use in their offices during routine checkups.

Rensselaer has patented a device that listens to blood flowing in a patient's carotid artery and tells a doctor immediately if the artery is blocked by dangerous cholesterol deposits. The device provides an inexpensive, non- invasive screening system that doctors can use in their offices during routine checkups.

Related Articles


Michael Savic, professor of electrical, computer, and systems engineering, has built a working prototype for Sunward Electronics of Delmar, N.Y., which has been granted a license to market the technology.

The two large carotid arteries in the neck carry blood to the brain. Physicians now diagnose stenosis -- cholesterol deposits in the arteries -- by using expensive diagnostic devices or by listening to the sounds made by the blood.

When the heart pumps blood, velocity is high (systolic cycle) and the flow is turbulent even with no stenosis. If the artery is clean, there is no turbulence when the heart does not pump (diastolic cycle), and when the velocity of blood is low. But when cholesterol deposits are present, the flow is turbulent during both cycles of a heartbeat. An expert can hear the difference.

Savic has developed a number of computer systems that recognize highly specialized sounds, including a burglar alarm that reacts to the sound of breaking glass and a detection system that warns if gas is leaking from pipelines or storage tanks. He suggested that a similar device could distinguish differences in sounds produced by blood in patients with cholesterol problems. The system he developed was tested on patients, producing highly accurate readings.


Story Source:

The above story is based on materials provided by Rensselaer Polytechnic Institute. Note: Materials may be edited for content and length.


Cite This Page:

Rensselaer Polytechnic Institute. "Device 'Listens' To The Distinctive Sound Of Cholesterol." ScienceDaily. ScienceDaily, 14 May 1998. <www.sciencedaily.com/releases/1998/05/980514080320.htm>.
Rensselaer Polytechnic Institute. (1998, May 14). Device 'Listens' To The Distinctive Sound Of Cholesterol. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/1998/05/980514080320.htm
Rensselaer Polytechnic Institute. "Device 'Listens' To The Distinctive Sound Of Cholesterol." ScienceDaily. www.sciencedaily.com/releases/1998/05/980514080320.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Buzz60 (Dec. 19, 2014) A double-amputee makes history by becoming the first person to wear and operate two prosthetic arms using only his mind. Jen Markham has the story. Video provided by Buzz60
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