CAJ | 학술논문

目的应用速度向量成像(VVI)技术分析正常人颈总动脉(CCA)短轴方向管壁运动和弹性参数特点及其与影响因素间的关系. 方法健康志愿者40名,采用Siemens Acuson Sequoia 512彩色多普勒超声诊断仪采集连续3个心动周期的CCA动态短轴二维图像,分析右侧CCA管壁短轴方向6个节段(前壁、后壁、前外侧壁、前内侧壁、后外侧壁、后内侧壁)的运动、弹性及其衍生参数的特点,并分析这些参数间及其与相关影响因素间的关系. 结果各侧壁的弹性相关参数差异无统计学意义(P>0.05);运动相关参数(除速度达峰时间)差异有统计学意义(P<0.05),即外侧壁和前壁明显高于后壁和内侧壁.年龄及内-中膜厚度与部分弹性参数及部分运动参数呈负相关(P<0.05).心率与部分弹性参数及部分运动参数呈正相关(P<0.05).弹性与运动参数间呈正相关(P<0.05),弹性及运动参数达峰时间呈正相关(P<0.05). 结论 VVI技术可用于研究正常人CCA管壁的运动力学特点及其与影响因素之间的关系.
목적 응용속도향량성상(VVI)기술분석정상인경총동맥(CCA)단축방향관벽운동화탄성삼수특점급기여영향인소간적관계. 방법 건강지원자40명,채용Siemens Acuson Sequoia 512채색다보륵초성진단의채집련속3개심동주기적CCA동태단축이유도상,분석우측CCA관벽단축방향6개절단(전벽、후벽、전외측벽、전내측벽、후외측벽、후내측벽)적운동、탄성급기연생삼수적특점,병분석저사삼수간급기여상관영향인소간적관계. 결과 각측벽적탄성상관삼수차이무통계학의의(P>0.05);운동상관삼수(제속도체봉시간)차이유통계학의의(P<0.05),즉외측벽화전벽명현고우후벽화내측벽.년령급내-중막후도여부분탄성삼수급부분운동삼수정부상관(P<0.05).심솔여부분탄성삼수급부분운동삼수정정상관(P<0.05).탄성여운동삼수간정정상관(P<0.05),탄성급운동삼수체봉시간정정상관(P<0.05). 결론 VVI기술가용우연구정상인CCA관벽적운동역학특점급기여영향인소지간적관계.
Objective To analyze the motion, elastic and derived parameters of normal common carotid artery (CCA) wall in short-axis orientation with velocity vector imaging (VVI) technique. Methods Two-dimensional dynamic images of CCA in 40 healthy volunteers people were obtained in short-axis view with Siemens Acuson Sequoia 512 color Doppler ultrasound. The motion, elastic and derived parameters were analyzed in right CCA including 6 segments: Anterior wall, posterior wall, anterolateral wall, anterior internal wall, posterolateral wall and posterointernal wall. Relationship between these parameters and the influencing factors were analyzed as well. Results There was no statistical difference of the elastic parameters among 6 walls (P>0.05). Some of the motion parameters of the lateral wall and anterior wall were higher than those of the posterior wall and internal wall (P<0.05). Age and intima-media thickness were negatively correlated with some elastic parameters and some motion parameters (P<0.05). Heart rate were positively correlated with some elastic parameters and some motion parameters (P<0.05). Elastic parameters were positively correlated with motion parameters (P<0.05) and positive correlation was found between time to peak of elastic and motion parameters (P<0.05). Conclusion VVI is an effective technique for observing CCA mechanical characteristics of the movement in normal human, and has potential for studying some of related factors of the characteristics.