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.

Related Articles


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 January 30, 2015 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 January 30, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Friday, January 30, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Oxfam Calls for Massive Aid for Ebola-Hit West Africa

Oxfam Calls for Massive Aid for Ebola-Hit West Africa

AFP (Jan. 29, 2015) Oxfam International has called for a multi-million dollar post-Ebola "Marshall Plan", with financial support given by wealthy countries, to help Guinea, Sierra Leone and Liberia to recover. Duration: 01:10 Video provided by AFP
Powered by NewsLook.com
Are We Winning The Fight Against Ebola?

Are We Winning The Fight Against Ebola?

Newsy (Jan. 29, 2015) The World Health Organization announced the fight against Ebola has entered its second phase as the number of cases per week has steadily dropped. Video provided by Newsy
Powered by NewsLook.com
Calif. Health Officials Campaign Against E-Cigarettes

Calif. Health Officials Campaign Against E-Cigarettes

Newsy (Jan. 29, 2015) The California Health Department says e-cigarettes are a public health risk for both smokers and those who inhale e-cig smoke secondhand. Video provided by Newsy
Powered by NewsLook.com
Measles Scare Sends 66 Calif. Students Home

Measles Scare Sends 66 Calif. Students Home

AP (Jan. 29, 2015) Officials say 66 students at a Southern California high school have been told to stay home through the end of next week because they may have been exposed to measles and are not vaccinated. (Jan. 29) 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