Method for Localizing Deep Needling Point of Ciliao and Zhongliao Based on Three-Dimensional Imaging Technology
Objective:To comprehensively explore the method for localizing deep needling points of Ciliao(BL 32)and Zhongliao(BL 33)from multiple perspectives based on previous studies.Methods:After Ciliao and Zhongliao were needled,three-dimensional reconstruction of CT was performed.Four methods,such as ① ratio between body cun and body distance were calculated;②the location of acupoints was determined and then a certain distance of position deviation was performed;③ using body surface markers as a reference and combining relevant data localization was performed;④four methods,such as determining the position of acupoints with line to point as assistance,were used to measure and calculate data related to the insertion point,such as distance,angle,and ratio,and methods for Ciliao and Zhongliao deep needling to enter the posterior sacral foramen were supplemented from different angles.Results:①On data and results of ratio between bone cun and body distance in horizontal and vertical coordinates:the body cun corresponding to the median line of Ciliao and Zhongliao needling points were(1.05±0.18)cun and(0.98±0.17)cun,respectively;the distance between Ciliao and Zhongliao and the horizontal line under the L5 spinous process and the distance from the horizontal line under the L5 spinous process to the sacral angle were(0.29±0.03)and(0.50±0.08),respectively.② Firstly the location of Ciliao and Zhongliao acupoints was determined,and then needling points longitudinally deviated by a certain distance according to the projection point on the body surface of the acupoints.The deviated distances were(10.66±4.01)mm and(10.93±4.67)mm,respectively.③Using the posterior superior iliac spine as a body surface marker,the insertion point was determined by combining the deviation angle and lateral distance ratio.The deviation angles of the line from the posterior superior iliac spine to the Ciliao and Zhongliao needle bodies from the horizontal line of the posterior superior iliac spine were(36.9±5.52)° and(53.4±4.67)°.The ratio of the distance from Ciliao and Zhongliao needles to the posterior midline and the distance from the posterior superior iliac spine to the posterior midline is:0.50±0.25,0.42±0.18.④First,it is to determine the line connecting the eight Liao acupoints on the same side,and then from the line to the point,to determine the positions of the second and middle Liao acupoints.The angle between the connecting line of the eight Liao acupoints on the left and right sides and the posterior sagittal plane is(7.28±4.16)°,(7.62±3.45)° respectively.Conclusions:Using different methods to determine the location of Ciliao and Zhongliao needling points from multiple perspectives,and the combined application of multiple methods,could reduce uncertainty and the error rate of operation,and reduce the influence of individual differences on the results,and improve the penetration rate of acupuncture,which should be promoted in clinic.
CiliaoZhongliaodeep needlingneedling pointthree dimensional reconstruction of CT