Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Warm blanket lessens chances of false-positives in cancer scans

22.06.2006
Placing a warm blanket on patients undergoing PET/CT scans to detect cancer makes the test more accurate, new Saint Louis University research finds.

In up to 9 percent of patients, doctors have difficulty interpreting scans because of the presence of brown adipose tissue, also known as brown fat, which may lead to a cancer misdiagnosis.

"This is a significant finding," says Medhat Osman, M.D., Ph.D., assistant professor of nuclear medicine and PET director at Saint Louis University School of Medicine. "It is a solution that not only is effective but low-cost and extremely easy for any PET facility to implement."

Osman says brown fat serves an important physiological role – it keeps the body warm in cold temperatures. But accumulations of the tracer that is used to identify malignancies during PET/CT scans that appear in brown fat can mimic cancer – or even mask the appearance of cancer in areas such as the lymph nodes.

New research presented by Osman, co-author Scott Huston and other Saint Louis University Hospital scientists at the 2006 Society of Nuclear Medicine in San Diego this month suggests that covering patients with a heated blanket before the scan can reduce the brown fat uptake by 62 percent.

Researchers currently suggest fighting the problem of brown fat uptake with drugs such as valium and beta blockers, which studies show only reduce the uptake by up to 30 percent.

"A warm blanket is more than twice as effective, and patients don't have to worry about negative drug interactions – or how they’re going to get home after their scan," he says.

While everyone has brown fat, it is more common in women, especially those who are slender, Osman says.

Osman's previous research suggests strenuous activity and consuming caffeinated beverages before undergoing PET/CT scans can also increase the chance for false-positives.

"We always call our patients 24 hours before their appointment as a reminder," Osman says. "Now we can give them a checklist: Don’t drink coffee, take it easy and try to stay warm to ensure the most accurate scan."

In addition to Osman and Huston, Saint Louis University Hospital technologists Crystal Botkin and Penny Yost were authors of the research, which placed third in the technologists section of the meeting.

Established in 1836, Saint Louis University School of Medicine has the distinction of awarding the first M.D. degree west of the Mississippi River. Saint Louis University School of Medicine is a pioneer in geriatric medicine, organ transplantation, chronic disease prevention, cardiovascular disease, neurosciences and vaccine research, among others. The School of Medicine trains physicians and biomedical scientists, conducts medical research, and provides health services on a local, national and international level.

Rachel Otto | EurekAlert!
Further information:
http://www.slu.edu

More articles from Health and Medicine:

nachricht One gene closer to regenerative therapy for muscular disorders
01.06.2017 | Cincinnati Children's Hospital Medical Center

nachricht The gut microbiota plays a key role in treatment with classic diabetes medication
01.06.2017 | University of Gothenburg

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Quantum thermometer or optical refrigerator?

23.06.2017 | Physics and Astronomy

A 100-year-old physics problem has been solved at EPFL

23.06.2017 | Physics and Astronomy

Equipping form with function

23.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>