Featured Research

from universities, journals, and other organizations

Laser Research Yields Precision Breath Analysis Tool For Asthma Diagnosis And Treatment

Date:
October 7, 2002
Source:
National Science Foundation
Summary:
Research at the University of Oklahoma has yielded a novel way of using a laser to analyze exhalations of asthma sufferers, opening the door to more accurate diagnosis and prescriptive treatment of the malady.

Research at the University of Oklahoma has yielded a novel way of using a laser to analyze exhalations of asthma sufferers, opening the door to more accurate diagnosis and prescriptive treatment of the malady.

Patrick McCann, through a National Science Foundation research award, coupled a laser spectroscopy system to a tunable laser to create a device that can accurately and simultaneously measure both carbon dioxide and nitric oxide levels of a single exhalation of breath.

The precise measurements provided by McCann's instrument might help doctors evaluate airway inflammation and prescribe medications at a level of accuracy corresponding to the measurement, thereby providing the most efficient and effective treatment while eliminating overmedication.

In diagnosing and treating asthma, physicians must assess how much air is actually flowing through a patient's airways, which is made more difficult with airway inflammation. Airway inflammation itself is most often assessed by physically invasive procedures. Earlier research found that asthmatics exhale more nitric oxide when their airways are inflamed, making measurement of its levels the preferred method for determining inflammation severity.

At present, nitric oxide levels are measured with devices that analyze chemiluminescence, a photochemical reaction between nitrogen and an ozone sample. Multiple tests are sometimes necessary. Also, chemiluminescence-based devices require periodic recalibration, whereas McCann's laser does not.

The device is currently undergoing clinical trials.

The findings are published in two journals of the Optical Society of America -- the October edition of Applied Optics and the Jan. 15 edition of Optics Letters.


Story Source:

The above story is based on materials provided by National Science Foundation. Note: Materials may be edited for content and length.


Cite This Page:

National Science Foundation. "Laser Research Yields Precision Breath Analysis Tool For Asthma Diagnosis And Treatment." ScienceDaily. ScienceDaily, 7 October 2002. <www.sciencedaily.com/releases/2002/10/021007072030.htm>.
National Science Foundation. (2002, October 7). Laser Research Yields Precision Breath Analysis Tool For Asthma Diagnosis And Treatment. ScienceDaily. Retrieved July 25, 2014 from www.sciencedaily.com/releases/2002/10/021007072030.htm
National Science Foundation. "Laser Research Yields Precision Breath Analysis Tool For Asthma Diagnosis And Treatment." ScienceDaily. www.sciencedaily.com/releases/2002/10/021007072030.htm (accessed July 25, 2014).

Share This




More Health & Medicine News

Friday, July 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

New Painkiller Designed To Discourage Abuse: Will It Work?

New Painkiller Designed To Discourage Abuse: Will It Work?

Newsy (July 24, 2014) The FDA approved Targiniq ER on Wednesday, a painkiller designed to keep users from abusing it. Like any new medication, however, it has doubters. Video provided by Newsy
Powered by NewsLook.com
Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Newsy (July 24, 2014) Sheik Umar Khan has treated many of the people infected in the Ebola outbreak, and now he's become one of them. Video provided by Newsy
Powered by NewsLook.com
Condemned Man's US Execution Takes Nearly Two Hours

Condemned Man's US Execution Takes Nearly Two Hours

AFP (July 24, 2014) America's death penalty debate raged Thursday after it took nearly two hours for Arizona to execute a prisoner who lost a Supreme Court battle challenging the experimental lethal drug cocktail. Duration: 00:55 Video provided by AFP
Powered by NewsLook.com
Can Watching TV Make You Feel Like A Failure?

Can Watching TV Make You Feel Like A Failure?

Newsy (July 24, 2014) A study by German researchers claims watching TV while you're stressed out can make you feel guilty and like a failure. Video provided by Newsy
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