Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

MDCT using dual energy setting may make CT colonography more 'patient-friendly'

07.05.2007
MDCT performed with a dual energy setting may allow enhanced differentiation of polyps from fecal matter in an unprepped colon, meaning patients may be able to skip the uncomfortable colonic preparation before CT colonography, according to a new study by researchers from Emory University School of Medicine in Atlanta, GA.

For the study, the researchers designed a human colon model with 17 lesions to simulate polyps and six lesions to simulate fecal matter. Two abdominal radiologists independently reviewed the MDCT scans of the model. The researchers found that accuracy for detection of the polyps was 73% and 69% at the routinely used settings of 120 and 140 kVp, and 87% and 82% at the lower 80 kVp.

"CT colonography can be a valuable non-invasive tool for screening for polyps and pre-cancerous lesions; however, every patient has to undergo a tedious and uncomfortable colonic preparation prior to the procedure. The recent introduction of dual-energy CT scanners provides a window of opportunity to explore the role of dual-energy CT to differentiate between polyps and fecal matter in an unprepped colon. Our study is the first step in this direction," said Sunit Sebastian, MD, of Emory University School of Medicine and lead author of the study.

The next step for the researchers is to test whether lower CT settings would work with actual patients. "We have since obtained an IRB approval to perform a dual-energy CT colonography in patients. If favorable results are obtained in the patient population, it would mean that we could avoid or totally bypass the uncomfortable colonic preparation, thereby making CT colonography more patient-friendly. This would further enhance patient compliance for screening for colon cancer," said Dr. Sebastian.

Necoya Lightsey | EurekAlert!
Further information:
http://www.arrs.org

More articles from Health and Medicine:

nachricht Antibiotic effective against drug-resistant bacteria in pediatric skin infections
17.02.2017 | University of California - San Diego

nachricht Tiny magnetic implant offers new drug delivery method
14.02.2017 | University of British Columbia

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: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Biocompatible 3-D tracking system has potential to improve robot-assisted surgery

17.02.2017 | Medical Engineering

Real-time MRI analysis powered by supercomputers

17.02.2017 | Medical Engineering

Antibiotic effective against drug-resistant bacteria in pediatric skin infections

17.02.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>