What is chromoendoscopy used for?

Chromoendoscopy is an endoscopic technique that uses stains during endoscopy to highlight differences in mucosa, as well as dysplastic and malignant changes that are not apparent in white light. Chromoendoscopy is used to increase the detection rates for various pathologic processes during endoscopy.

How is chromoendoscopy done?

A chromoendoscopy helps monitor the signs of progression toward cancer. In this technique, a dye is sprayed via an endoscope inside the gut which helps the doctor see which parts are affected by the ulcerative colitis. It enables the visualization of the inside of the colon and takes targeted biopsies.

What is magnification endoscopy?

Magnification endoscopes include an adjustable focusing mechanism that permits standard endoscopic views and the ability to enlarge the image. Most magnification endoscopes combine optical and digital zoom and permit 1.5 to 2 times digital magnification and/or an optical magnification up to 150 times [5,6].

What is virtual chromoendoscopy?

Virtual chromoendoscopy (VCE) refers to electronic endoscopic imaging technologies that provide detailed contrast enhancement of the mucosal surface and blood vessels in the colon and rectum. A number of VCE technologies are available.

What is a dye spray colonoscopy?

Chromoendoscopy involves applying a dye, called indigo-carmine, to the bowel lining whilst performing colonoscopy which highlights more subtle abnormalities, therefore increasing dysplasia detection rate. There is no standard international concentration of the dye spray used during chromoendoscopy.

What is the dye used in an endoscopy?

Chromoendoscopy is an image-enhanced endoscopic technique achieved either through dye-based chromoendoscopy, in which topical dyes such as methylene blue or indigo carmine are applied, or electronic chromoendoscopy, which includes optical technologies such as narrow-band imaging (NBI, Olympus), flexible spectral …

What dye is used for endoscopy?

What is colonoscopy and dye spray?

Why is dye used in a colonoscopy?

Chromoscopy (spraying dye onto the surface of the colon to make polyps more visible) may be one way of enhancing the ability of colonoscopy to detect polyps, particularly diminutive flat lesions, which otherwise may be difficult to detect.

Is contrast dye used in colonoscopy?

Contrast is a special dye that makes it easier for your doctor to see abnormalities in your body. Oral contrast dye can be a medication given during bowel preparation for a VC but, because you’ve had a reaction to iodinated or CT contrast dye in the past, you will not use oral contrast dye during your preparation.

Why do they use blue dye in colonoscopy?

Blue Dye Increases Adenoma Detection Rate (ADR) A recent study found that oral tablets with methylene blue dye could boost adenoma detection rate (ADR) as much as nine percent. ADR is the percentage of patients undergoing screening colonoscopies in whom a physician detects one or more adenomas, or precancerous polyps.