| Objective:Bilateral back MRI both sides Geshu anatomy; measuring various points within the key organizations with the distance, angle and in all directions outward, inward, up and down all up 15°,30°,45°when the dangerous depth, to determine the direction of the safety of acupuncture, depth, angle; analysis about gender, body weight, BMI index and impact of relevant factors point acupuncture safety depth. It can provide the basis for the safe operation of clinical acupuncture.Methods:1. Choose 20 young volunteers, health, size medium, BMI (Body Mass Index=weight/height2, kg/m2) in 17.8～22.9, male 10, female 10, age is 22 to 30 years old, average 25.20±1.54 years old. Based on national standards "acupoints name and location" (GB/T12346-2006), locate acupoints on all subjects, using vitamin E capsules mark.2. Superconducting magnet using GEsigna0.5T MRI check scanning device magnetometer 0.5T, Coils:QD Body FlexⅡ; matrix:256×160; NEX:2.00; FOV:37×37; thickness:8mm; layer spacing:1.0mm; TE:21; Bandwidth:10.42; Gating Control:PG. 3.Scanning levels:had bilateral back Geshu and the level of the middle point of the fault plane is axial (horizontal position); to three-dimensional positioning as the basis of axial points and the parietal pleura when the shortest distance Service connection for the section is oblique sagittal section. 4. In the T1 weighted images in the horizontal position, respectively, measured on oblique sagittal depth of piercing dangerous, diagonal stabbing dangerous angle and with the skin surface was 15°,30°,45°diagonal stabbing dangerous when the depth of a dangerous depth×75% of safe depth; dangerous angle-10°or+10°angle for safety.5.The results of statistical software with SPSS18.0, show it with x±s.Results:1. Angle(1)The safety angle of outwardly needling geshu is 15.85±3.245°for the left one,16.75±2.612°for the right one. (2) The safety angle of inwardly needling the left geshu is 68.80±2.415°for the left one,71.05±2.651°for the right one.2. Depth(1)The depth of straightly needling the left geshu is 4.03±0.507cm for male,2.99±0.538cm for female; the depth of straightly needling the right geshu is 4.11±.669cm for male,3.16±0.713cm.(2)Outward needling geshu in 15°is in the safety range.(3) The safety depth of needling the left geshu in outward 45°for male is 4.05±.551cm, for female is 3.11±0.594cm; the safety depth of needling the right geshu in outward 45°for male is 3.92±0.430cm, for female is 3.15±0.627cm;(4) The safety depth of needling the left geshu in inward is 6.02+ 0.977cm for male,4.58±0.804cm for female; the safety depth of needling the right geshu in inward is 6.08±0.883cm for male,4.64±0.961cm for female.(5) Inward needling geshu in 15±has on clinic meaning.(6) Inward needling geshu in 15±has on clinic meaning.3. Correlation(1)The risk angle of outward pointing geshu has no relationship with height, weight and BMI index.(2) The risk angle of inward pointing geshu has no relationship with height, weight and BMI index.(3)The depth of straightly pointing geshu has no relationship with height, weight and BMI index.(4) The depth of straightly pointing geshu has no relationship with height, weight and BMI index.(5) The depth of inward pointing geshu has no relationship with height, weight and BMI index.Conclusion:1. The left and right geshu have no difference in the dangerous angle of outward and inward. 2.The left and right back Geshu acupuncture point in the risk of straight depth,the risk depth in outward 45°and inward depth have no difference3.It is diferent between the dangerous depth of male and female in straight,outward 45°and inward,which tips that clinic workers point men deeperly than women at those situations.4.Geshu's risk straight depth,inward depth,outward 45°depth and dangerous angles in outward,inward have on relationship between BMI index,which means that it is no necessary to consider the body shape when people point geshu. |
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