Stimulating effects of embedded material on acupoints in healthy human using MRI T2-mapping scanning over time and location
10.3969/j.issn.1006-2157.2016.07.015
- VernacularTitle:运用MRI T2-mapping动态观察埋植线体对正常人体经穴刺激效应的特点
- Author:
Hongfang NIE
1
;
Xin LIANG
;
Xunrui HOU
Author Information
1. 贵州医科大学附属医院影像科 贵州550004
- Keywords:
embedded material;
acupoints on normal body;
stimulating effect;
Catguts absorption period;
magnetic resonance imaging ( MRI) T2-mapping
- From:
Journal of Beijing University of Traditional Chinese Medicine
2016;39(7):605-609
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe changes in the stimulating effects of micro-invasion catgut embedding on different acupoints in healthy human over time and location , providing reference data for interval peri-od of micro-invasion catgut embedding ,and To study the feasibility of MRI T 2-mapping technology used to measure stimulating effect of embedding material .Methods Before and after the left acupoints sanyin-jiao (SP 6) and zusanli (ST 36) were treated with micro-invasion catgut embedding on 8 healthy sub-jects, 8 echo sequence images were collected by using MRI scan .Sources of 8-echo sequence images were sent to the work station to get T2-mappings, and test the T2 value on T2-mappings, analyzing the characteristics of T2 value with time variation while comparing the difference of catgut absorption in SP 6 and ST 36.Results In both two acupoints, T2 values on the 8th hour, the 3th, the 7th and the 14th day after being catgut-embedded were all higher than those at the time before catgut-embedding (P<0.01), T2 valuse on the 21th, the 28th and the 35th day after being catgut-embedded presented with no significant difference compared with the time before catgut-embedding ( P>0 .05 ) .After being catgut-embedded , the peaks of T2 value appeared on the 3th day.Peak of T2 value in ST 36 was higher than that in SP 6, and T2 value in ST 36 decreased in a curve steeper than that in SP 6 .It both took 21 days for T2 value in two acupoints to decrease to the level before catgut-embedding .Conclusion Catguts absorption peri-od in ST 36 and SP 6 are the same .If applying micro-invasion catgut-embedding in acupoints on normal body limbs at the same condition , the catgut-embedding interval period is probably about 21 days.MRI T2-mapping technology could be applied to observe stimulating effect of embedding material after acupoint embedding .
