摘要
目的：采用256层螺旋计算机断层摄影术（MSCT）测量左冠状动脉分支夹角和径线，为临床诊治冠状动脉疾病提供正常参考值。方法：①收集30例先后行MSCT冠状动脉成像及冠状动脉造影（CAG漶者，测量左冠状动脉分支夹角，左前降支、回旋支、右冠状动脉根部径线及截面积，并作对照分析。②收集行MSCT冠状动脉成像检查冠心病患者180例，男68例，女112例，按年龄分为24～40岁组（n=25），41～60岁组（n=127），61～76岁组（n=28），测量左冠状动脉分支夹角，左前降支、回旋支、右冠状动脉根部径线及截面积，分析其号性别、年龄、身高、体重的相关性。结果：①30例行MSCT冠状动脉成像及CAG患者，MSCT与CAG所测左冠状动脉分支夹角、径线及截面积差异无统计学意义（P〉0．05）。②180例行MSCT冠状动脉成像检查患者，MSCT所测男性各项指标均大于女性（P〈0．05），但按体表面积进行标化，男性各项指标与女性数值差异无统计学意义（P〉0．05）。不同年龄组之间上述指标差别无统计学意义（P〉O．05）。③正常参考值范围（95％参考值范围）：夹角为29．53°-135．42°，不论性别，均按身高、体重标化后左前降支、回旋支、右冠状动脉径线及截面积95％参考值范围分别为1．12～2．41mm，2．06～9．22mm2；0．95～2．07mm,1．82～7．11mm2；1．24～2．70mm，2．39～11．10mm2。结论：MSCT可以客观评价左冠状动脉夹角及径线，在诊断冠状动脉径线狭窄及左冠状动脉夹角增大时可以做为参考值。
Objective： To quantitatively measure the left coronary bifurcation angle and proximal segment diameters by multi slice computed tomography （MSCT） in order to provide the normal reference value for coronary artery disease （CAD） in clinical practice. Methods： （1） We measured the left coronary artery bifurcation angle and the root diameter with the sectional area of left anterior descending branch, left circumflex branch, right coronary artery in 30 patients and compared the results between 256-slice spiral CT and coronary angiography （CAG）. （2） We studied 180 CAD patients with MSCT coronary imaging including 68 male and 112 female, the patients were divided into 3 groups according to their age. Group （1）, patients at the age of （24-40） years, n=25, Group （2）, patients at the age of （41-60） years, n=127 and Group （3）, patients at the age of （61-76） years, n=28. We analyzed the relationship between the above imaging indexes and the age, gender, height and body weight. Results： （1） In 30 patients, the coronary artery bifurcation angle and the root diameter with the sectional area of left anterior descending branch, left circumflex branch, right coronary artery were similar between MSCT and CAG examinations, P〉0.05. （2） In 180 patients, MSCT indicated that the above indexes in male were all higher than those in female, P〈0.05, while with standardized calculation of height and body weight, the indexes were similar for male and female, P〉0.05. The indexes were similar among different age groups, P〉0.05. （3） The normal reference range （95%） for the bifurcation angle was at （29.53-135.42）°. In spite of gender, with the standardized height and body weight, the normal reference ranges （95%） for the root diameter with the sectional area of left anterior descending branch, left circumflex branch, right coronary artery were at （1.12-2.41） mm and （2.06-9.22） mm2, （0.95-2.07） mm and （1.82-7.11） mm2 , （1.24-2.70） mm and （2.39-11.10） mm2 respectively. Conclusion： MSCT may objectively evaluate the coronary bifurcation angle and the proximal segment diameters, therefore, could play the important role for diagnosing the patients with increased bifurcation angle and coronary stenosis in clinical practice.
出处
《中国循环杂志》
CSCD
北大核心
2014年第6期424-427,共4页
Chinese Circulation Journal
关键词
分叉角度
冠心病
冠状动脉径线
多层螺旋计算机断层摄影术
Bifurcation angle
Coronary artery disease
Coronary artery diameter
Multi slice computed tomography
