A standard white light colonoscopy is a medical procedure used to check for colorectal polyps or cancer. The procedure involves the use of a colonoscope to exam the colon which consists of a long, flexible plastic tube with a tiny video camera and light at one end. The gastroenterologist carefully guides this instrument in various directions to look inside the colon in standard white light. The picture from the camera appears on a television monitor to provide a clear, magnified view of the colon lining.
Colonoscopy and Photocure Technology™ – blue light colonoscopy
When performing blue-light colonoscopy, the patients receives Lumacan®, the diagnostic drug. The drug contains a substance that is quickly taken up by the diseased cells, and is transformed inside the cells to a substance which will light up red when illuminated with blue light. When performing the colonoscopy the colonoscope contains both a white and blue light source, so the doctor can switch between them. When the doctor switches on the blue light, the tumour cells light up red.
Colonic lesion in standard white light
Colonic lesion under blue light