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:4/18/2017)... SUNNYVALE, Calif. , April 18, 2017  Socionext Inc., a ... prototype of a media edge server, the M820, which features the ... face recognition software provided by Tera Probe, Inc., will be showcased ... and at the NAB show at the Las Vegas ... ...
(Date:4/11/2017)... Research and Markets has announced the addition of the ... ... grow at a CAGR of 30.37% during the period 2017-2021. ... prepared based on an in-depth market analysis with inputs from industry ... over the coming years. The report also includes a discussion of ...
(Date:4/5/2017)... , April 5, 2017 Today HYPR ... that the server component of the HYPR platform is ... providing the end-to-end security architecture that empowers biometric authentication ... HYPR has already secured over 15 million users across ... manufacturers of connected home product suites and physical access ...
Breaking Biology News(10 mins):
(Date:5/22/2017)... , ... May 22, 2017 , ... ... that it is exhibiting in booth B2 at the Association for Pathology ... 22-25. , In addition to demonstrating its Cancer Diagnostic Cockpit and Consultation ...
(Date:5/18/2017)... ... May 18, 2017 , ... Dr. Ralph Mobbs of ... Prince Of Wales Private Hospital. The procedure was performed on a 46-year-old male ... conservative treatments prior to undergoing surgery. , The AxioMed viscoelastic disc is a ...
(Date:5/18/2017)... ... May 17, 2017 , ... ... compliance and commercialization, has just released version 9.0 of the Cognition Cockpit platform. ... version of Cockpit,” says David Cronin, CEO of Cognition. “We’re thrilled to finally ...
(Date:5/18/2017)... ... 18, 2017 , ... When James Sherley, was notified earlier this year that his company ... Year 2017 by The Silicon Review , he was not surprised as others might ... value, but this recognition by Silicon Valley was particularly meaningful. Our selection ...
Breaking Biology Technology:
Cached News: