The meaning of dyeing with indigo rouge.
Alias: indigo; indigo carmine; sodium indigo disulfonate; indigo rouge. It is a blue dye that is mainly excreted by the renal tubules. Used to measure kidney function.
Term explanation:
The normal surface of the mucosa of the digestive tract is smooth, but when there are minor lesions, such as ulcers, cancer, etc., the surface will change, but in the early stages Because the changes are so small, they are difficult to detect under ordinary endoscopy.
The dye uses the principle of contrast. When the dye is sprayed on the mucosa, the indigo rouge cannot be deposited on the smooth surface, but is all deposited between the grooves of the mucosal folds, forming a sharp contrast with the orange mucosa. , under direct vision, a continuous line is formed, showing the subtle concave and convex changes of the mucosa and its three-dimensional structure, which is conducive to clinically detecting obscure tumors and other lesions at an early stage, and provides conditions for early detection and early treatment of patients.
Using the difference in color after the dye is deposited to reveal the microstructure, it is a physical effect and no chemical reaction occurs. It is not observed by staining the tissue. It does not interact with the mucosal tissue itself. The pigment is deposited on the Mucosal folds, neither absorbed nor combined with mucus, are excreted from the body through the intestines.