• C Y Sheu and J G Lin.
• Department of Radiology, Mackay Memorial Hospital, National Defense Medical Center, Taipei, Taiwan, R.O.C.
• Zhonghua Yi Xue Za Zhi (Taipei). 1992 Nov 1; 50 (5): 388-99.

AbstractKnowledges of acupuncture has played a major role in the treatment of human diseases, and has been mentioned in ancient Chinese medical literature for thousands of years. The loci which are most commonly used as treatment sites are points on the Ren Channel, kidney Channel, Stomach Channel, Pericardium Channel, Lung Channel, Spleen Channel and Gallbladder Channel for those loci on the human chest, insertion depth beyond safety level, can create serious consequences other such as pneumothorax, internal organ bleeding or other damage. This study was designed to determine the real safety depth for each locus by using a current scientific approach. The study was carried out at Tri-Service General Hospital and Mackay General Hospital. The sample patient population was 120. According to their body weight and height, patients were divided into six groups with various body sizes, i.e. normal, over and under-weight adults, and by sex differences. After computer tomographic scanning chest, the relative acupuncture loci should be measured according to anatomical position, then the distance between surface of the chest and thoracic pleura can be defined as its safety depth. For each locus of the groups, the mean and its interval of confident can be found. The analysis of variance (ANOVA), t-test, and multiple regression were also calculated by computer. The results show that there are significant differences in body chest loci within the same sex but, for different body sizes, statistically significant differences for each locus appear, so the safety depth for each chest locus has actually been proved. Not only does his data provide useful information for clinical practices, but also the standard safety depth for each loci on the chest could this be established.

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