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Software Filter Helps Lower Radiation Dose During CT Scans

by Barbara Kram, Editor | April 28, 2009
SharpView
Boston, MA - Recent studies from Massachusetts General Hospital show that radiation during CT scans can be reduced when using an image enhancing technology developed by SharpView. The studies show a relative dose reduction of up to 75 percent with preserved or even enhanced image quality. This results in safer scanning by allowing lower radiation doses to be used.

CT Scans are often the best way to find anatomical changes in the body. This has led to a steady increase of its use throughout the world. The downside of CT examinations is that high radiation is needed to receive good image quality. CT radiation dose can increase the risk of developing radiation induced cancer. New research shows that doses can be dramatically lowered when using software from SharpView. The technology is based on mathematical algorithms that filter out noise, making imaging with lower radiation possible.

"We found that these filters can help reduce CT radiation dose for kidney assessment by as much as 75 percent and by at least 50 percent in abdominal examinations," said Mannudeep Kalra, MD, Radiologist at Massachusetts General Hospital. "The software preserves sharpness, reduces noise and most importantly, reduces CT radiation dosage. This is an effective algorithm that we have evaluated. We believe it is possible to decrease radiation dosage even further in the future."
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Dr. Sarabjeet Singh, the primary author and study co-investigator, presented findings at the annual ARRS (American Roentgen Ray Society) Congress on Monday, April 27 and will do so again Wednesday, April 29 in Boston.

Magnus Aurell, CEO of SharpView, is pleased with the results of the study: "Lowering radiation exposure in CT is an important step in making medical imaging diagnosis safer for all patients. Image quality and low dose are crucial needs in radiology that can now be reconciled in a safe and effective manner."

The software is currently evaluated in hospitals all over the world and was most recently bought by Unilabs, a leading pan-European diagnostics company and the Swedish hospital UMAS (Malmoe University Hospital). Until now, the dose reduction technology has been launched on the Scandinavian, German, and British markets.

About ARRS
The American Roentgen Ray Society ( http://www.arrs.org/ ), founded in 1900, is the first and oldest radiology society in the United States. The society has been a forum for progress in radiology since shortly after the discovery of the X-ray and is dedicated to the goal of the advancement of medicine through the science of radiology and its allied sciences. The goal of the ARRS is maintained through an annual scientific and educational meeting and through publication of the American Journal of Roentgenology. The Annual ARRS Meeting of 2009 will be held April 26-May 1, at the John B. Hynes Veterans Memorial Convention Center, Boston, MA.

About SharpView
SharpViewABis a leading supplier of medical image quality optimization and CT radiation dose reduction technology. As a Partner of ContextVision AB, SharpView benefits from their 25 years' sector experience. SharpView has its headquarters in Sweden and is listed on the stock-market. For more information, please visit: www.sharpview.com.