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Endoscope with an oxygen sensor detects pancreatic cancer
Date:6/6/2014

JACKSONVILLE, Fla. June 6, 3014 An optical blood oxygen sensor attached to an endoscope is able to identify pancreatic cancer in patients via a simple lendoscopic procedure, according to researchers at Mayo Clinic in Florida.

The study, published in GIE: Gastrointestinal Endoscopy, shows that the device, which acts like the well-known clothespin-type finger clip used to measure blood oxygen in patients, has a sensitivity of 92 percent and a specificity of 86 percent.

MULTIMEDIA ALERT: Video and audio are available for download on the Mayo Clinic News Network.

That means, of 100 patients with pancreatic cancer, this sensor would detect 92 of them, based on the findings. And of 100 patients who don't have pancreatic cancer, the test would correctly identify them 86 percent of the time.

The device measures changes in blood flow in the tissues that are in the proximity to the pancreas, under the theory that tumors change the flow of blood flow in surrounding tissues because the tumors need oxygen to grow. The endoscope is passed into the stomach and the duodenum, where the measurements are taken. The pancreas lies just outside the duodenum.

"Although this is a small pilot study, the outcome is very promising. There is no test now available that can accurately identify pancreatic cancer at an early stage, short of removing some of the organ," says the study's senior investigator and gastroenterologist

Contact: Kevin Punsky
punsky.kevin@mayo.edu
904-953-0746
Mayo Clinic
Source:Eurekalert

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