NBI changes the white light normally emitted by the colonoscope to a bluish light, providing a narrower wavelength and enhancing visual contrast of the surface structure of the colon.
窄带成像技术将结肠镜常规发射的白光改变为蓝光，以此提供一个较窄的波长，加强结肠表面结构的视觉对比度。
Purpose: to study the anatomical and histological structure of colon of congenital malformation fetus, to discuss the relationships between several malformations and the development of colon.
目的：研究先天性畸形胎儿结肠的解剖及组织学结构，探讨几种畸形与结肠发育之间的关系。
Objective To observe morphologic structure of human lymphatic vessels in colon carcinoma, discuss the mechanism of lymphatic metastasis.
目的观察人结肠癌淋巴管的形态结构，探讨淋巴道转移机制。
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