多层螺旋CT评价心肌桥对近端血管内径变化率的影响

发布时间：2018-03-02 16:24

本文选题：冠状动脉　切入点：心肌桥　出处：《中国医学计算机成像杂志》2017年04期 　论文类型：期刊论文

【摘要】：目的:利用多层螺旋CT冠状动脉造影来探讨心肌桥对壁冠状动脉近端血管内径变化率的影响。方法:收集上海中医药大学附属上海市中西医结合医院2016年10月-2017年1月进行冠状动脉CTA检查且符合条件的患者79例,其中LAD心肌桥患者27例,无心肌桥作为对照组患者52例。对所收集的患者进行心动周期的45%(收缩期)及75%(舒张期)双期重建,利用Vitrea 2后处理工作站测量出RCA及LAD近端横截面的长径与短径,利用其均值代表该血管的直径。再利用血管内径变化率(inner diameter change rate,DCR)公式:冠状动脉血管内径变化率=(血管收缩期直径-血管舒张期直径)/血管收缩期直径×100%,从而计算出患者DCR。心肌桥组与对照组进行统计学对照分析,P0.05认为具有统计学差异。结果:心肌桥组RCA近端DCR为13.41%±7.85%,对照组RCA近端DCR为10.40%±9.60%,两者不存在统计学差异(t=1.399,P=0.166,P0.05),心肌桥组LAD近端DCR为10.85%±14.66%,对照组LAD近端DCR为11.81%±11.51%,两组不存在统计学差异(t=-0.318,P=0.751,P0.05);但心肌桥组LAD近端长径的DCR为7.59%±7.05%,对照组LAD近端长径的DCR为12.75%±12.36%,心肌桥组LAD人品端长径的DCR明显低于对照组,且具有统计学差异(t=-2.0,P=0.049,P0.05),但LAD近端短径的DCR在两组中不具有统计学差异(t=-0.078,P=0.938,P0.05);心肌桥组RCA近端长短径与对照组均不具有统计学差异(t=0.855,P=0.395,P0.05及t=1.42,P=0.16,P0.05)。结论:心肌桥患者LAD近端长径DCR低于对照组,表明心肌桥的存在对于壁冠状动脉近端的长径DCR存在明显的影响。
[Abstract]:Objective: To investigate the effects of myocardial bridge proximal vascular diameter change rate of mural coronary artery by using multi-slice spiral CT coronary angiography. Methods: coronary artery CTA examination and 79 cases of patients with a hospital in October 2016 -2017 year in January with the collection of Shanghai University of Traditional Chinese Medicine affiliated Shanghai traditional Chinese medicine and Western medicine, including 27 cases of LAD patients with myocardial bridge, no muscle bridge as the control group of 52 patients. The cardiac cycle of the collected 45% patients (systolic) and 75% (Shu Zhangqi) dual phase reconstruction, the use of Vitrea 2 RCA and postprocessing workstation to measure the proximal LAD cross section of the long and short diameter, the mean diameter of the vessel on behalf of the reuse. The vessel diameter change rate (inner diameter change rate, DCR) formula: coronary artery diameter change rate = (vascular systolic diameter - Shu Zhangqi vascular diameter) / vascular systolic diameter by 100%, calculated with DCR . the myocardial bridge group and control group were analyzed statistically, P0.05 difference statistically. Results: the myocardial bridge proximal RCA DCR group is 13.41% + 7.85%, the control group RCA proximal DCR was 10.40% + 9.60%, both of them are no statistical difference (t=1.399, P=0.166, P0.05), group LAD myocardial bridge proximal DCR 10.85% + 14.66%, the control group LAD proximal DCR was 11.81% + 11.51%, the two groups have no significant differences (t=-0.318, P=0.751, P0.05); group LAD but myocardial bridge proximal length DCR is 7.59% + 7.05%, the control group LAD proximal length diameter DCR was 12.75% + 12.36%, myocardial bridge group LAD character at the end of the long diameter DCR was significantly lower than the control group, and the difference was statistically significant (t=-2.0, P=0.049, P0.05, LAD) but the proximal short diameter of DCR has no significant differences in the two groups (t=-0.078, P=0.938, P0.05); group RCA myocardial bridge proximal diameter and the control group were not statistically significant (t=0.855, P=0.395, P0.05 and t=1 .42, P=0.16, P0.05). Conclusion: the LAD proximal length diameter DCR of patients with myocardial bridging is lower than that of the control group, indicating that the presence of myocardial bridge has a significant effect on the long diameter DCR of the proximal wall of coronary artery.

【作者单位】：同济大学附属同济医院影像科;上海中医药大学附属上海市中西医结合医院影像科;
【基金】：上海中医药大学预算内项目No.2014YSN74~~
【分类号】：R543.3;R816.2

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