chromoscopy


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Related to chromoscopy: colonoscopy, transvesical

chromatoscopy

 [kro″mah-tos´kah-pe]
1. the testing of color vision using light beams to mix color stimuli.
2. the diagnosis of renal function by the color of urine following administration of dyes; called also chromoscopy.

chromoscopy

A format for oesophageal endoscopy of patients with suspected Barrett’s oesophagus, in which the oesophageal mucosa is painted with toluidine blue—a dye that highlights dysplasia within the metaplastic segment. Other dyes used include Lugol’s iodine, which leaves metaplastic epithelium unstained and is thought to improve demarcation. Indigo carmine is used in Japan. Regardless of the colour, the procedure may not improve detection rates of Barrett’s oesophagus.
References in periodicals archive ?
"Video colonoscopy and chromoscopy in diagnostics of flat adenomas of colon," Russian Journal of Gastroenterology, Hepatology, Coloproctology, Vol.1, pp.66-70.
(22) However, colonoscopy has the advantage of using special techniques such as high-magnification chromoscopy and dye spraying that CTC does not.
The sensitivity of high-magnification colonoscopy with violet blue chromoscopy and pit-pattern analysis for distinguishing neoplastic from nonneoplastic lesions in 1,850 colonoscopy patients was 98%; specificity was 92%.