Images produced by the earlier system, developed by Xillix, of British Columbia, Canada, showed areas of confusing bright fluorescence caused by fecal material.
Canadian doctors who tested the new Xillix Onco-Life technology said the problems did not arise with the new system.
|Artifacts due to fluorescence of fecal matter are not a problem.
Doctors at St Michael's Hospital, Toronto, Canada, said the new system produced image quality as good as that given by the earlier Xillix Life II system.
Gastroenterologist Dr Norman Marcon said, "The image quality of Onco-LIFE in normal and abnormal regions of the GI tract was equivalent to that of Xillix LIFE II.
"We also found that Onco-LIFE fluorescence images do not suffer from artifacts due to the fluorescence of fecal matter typically found in the colon or large bowel. These artifacts produced confusing bright fluorescence areas during our Xillix LIFE II experience, whereas, with the Onco-LIFE technology, these distractions are not visible.
"This enables us to better concentrate on the fluorescence of the tissue itself. We believe that these clinical findings support the decision to continue with the full development and clinical trials of Onco-LIFE for detecting early cancer in the GI tract."
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