HOME >> BIOLOGY >> NEWS
New approach allows closer look at smoker lungs

MADISON - Aided by a powerful imaging technique, scientists have discovered they can detect smoking-related lung damage in healthy smokers who otherwise display none of the telltale signs of tobacco use.

Researchers at the University of Wisconsin-Madison were able to probe deeper into smokers' lungs by tracking the movement in the respiratory organs of a harmless gas known as helium. Helium can be inhaled and visually detected via the widely used diagnostic technique known as magnetic resonance imaging (MRI), which produces high-contrast images of the body's soft tissues. The use of helium is a departure from traditional MRI, which typically distinguishes body tissues from one another by tracking differences in water content.

Writing in the journal Radiology, the UW-Madison scientists suggest that in comparison to existing imaging methods, the helium-based approach could enable doctors to assess lung health more accurately, as well as spot smoking-associated diseases much sooner.

"It's one thing to see a [lung] disease that was already diagnosed, but another to see changes that no one predicted were there," says lead author Sean Fain, a UW-Madison assistant professor of medical physics. "This approach allows us to look at lung micro-structures that are on the scale of less than a millimeter."

Cigarettes can contribute to the onset of respiratory conditions such as emphysema, bronchitis and asthma. In emphysema in particular, the alveoli - tiny sacs in the lungs that transfer oxygen to blood - gradually break down. Fain and his team therefore reasoned that helium gas molecules are likely to have more space to move around in lungs with fewer functioning alveoli.

Testing that theory among eight non-smokers and 11 healthy smokers with no obvious lung damage, Fain found that the movement or "diffusion coefficient" of helium gas molecules did indeed correlate with how much a person smokes, with greater movement indicating a highe
'"/>

Contact: Sean Fain
sfain@wisc.edu
608-263-0090
University of Wisconsin-Madison
30-May-2006


Page: 1 2

Related biology news :

1. Researchers use new approach to predict protein function
2. New approach to pulmonary hypertension shows promise
3. Personalized approach to ovarian stimulation achieves high ART pregnancy rates
4. New approaches to endometriosis treatment -- mouse experiments point the way
5. Reconstructing the biology of extinct species: A new approach
6. Screening approach leads to discovery of gene linked to breast cancer
7. In new statistical approach, data decide model
8. Bigelow Laboratory Scientists develop new approach to study marine microbes
9. New understanding of schizophrenia could lead to new treatment approaches
10. Cheaper, better disease treatments expected from faster approach to developing antibodies
11. New imaging approach promises insights into multiple sclerosis

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/29/2017)...  higi, the health IT company that operates the ... , today announced a Series B investment from ... The new investment and acquisition accelerates higi,s strategy to ... population health activities through the collection and workflow integration ... collects and secures data today on behalf of over ...
(Date:3/27/2017)... 2017  Catholic Health Services (CHS) has been ... (HIMSS) Analytics for achieving Stage 6 on the ... In addition, CHS previously earned a place in ... electronic medical record (EMR). "HIMSS Analytics ... EMR usage in an outpatient setting.  This recognition ...
(Date:3/24/2017)... Mar 24, 2017 Research and Markets has ... Market Analysis & Trends - Industry Forecast to 2025" report ... ... at a CAGR of around 15.1% over the next decade to ... report analyzes the market estimates and forecasts for all the given ...
Breaking Biology News(10 mins):
(Date:4/25/2017)... ... , ... Leaders of Quorum Review IRB and Kinetiq , ... this week’s Association of Clinical Research Professionals (ACRP) 2017 Meeting & Expo ... "We are excited to present subject matter expertise on topics that impact the global ...
(Date:4/21/2017)... Austin, TX (PRWEB) , ... April 21, 2017 , ... ... more than a year, Formaspace is pleased to introduce it to top lab design ... Carolina. Formaspace CEO Jeff Turk and VP of Industrial Design and Engineering Greg Casey ...
(Date:4/21/2017)... ... 2017 , ... Frederick Innovative Technology Center, Inc. (FITCI), a ... technology start-ups, is hosting “Celebration Friday” (a festive gathering highlighting client success stories) ... and networking at 3:30 p.m. at FITCI’s 4539 Metropolitan Court location, off English ...
(Date:4/20/2017)... , April 20, 2017  Eli Lilly and Company ... data evaluating galcanezumab for the prevention of migraine at ... will take place April 22-28, 2017, in ... four abstracts at AAN, including safety and patient outcomes ... associated with a reduction in monthly migraine headache days ...
Breaking Biology Technology:
Cached News: