经络学说是祖国医学基本理论之一

长期以来

一直指导着中医和针灸的临床实践

历来为国内外学者所重视。多年来

运用电、热、声、光等生物物理学手段

做了大量的研究

目的在于寻找经络循行的客观依据

始终未取得满意的结果。同位素示踪的方法

国内从五十年代By injection of isotope(sodium pentechnetate)into specific acupoints: Jianshi

Zhigou

Jiexi

Zhongfeng

Taixi and Kunlun it becomes possible to put in evidence peculiar pathways along with which isotope preferentially diffuses

pictures can be taken with a large-field-of-view gamma camera controled by compnter program

and more precise data can be obtained from the computer

concerning signales rates of intensity and duration of isotopers migration.the directions of tracer migration are some as the veins during the period of twenty minutes after injection and the length of tracer migration is up to 100 centimeters in this experiment. These pathways are quite different of lymphathic vessels and they seem to be in straight correspondance with classical courese of channels. The pictures of tracer migration can be changed markedly in patients. It is interesting to observe that the tracer migration is retared

length shorted

and velocity lowered in patient with hemiplegia caused by cerebral thrombosis As was stated above

the classical courses of channels are verified visually and the statement of“channels serve to energy transfer and blood flow”has been supported objectively.