CAJ | 학술논문

目的探讨彩色多普勒超声对大动脉炎患者颈动脉窃血的诊断价值及其血流动力学特点.方法 19例伴有颈动脉窃血的大动脉炎患者作为病例组,19例健康志愿者作为对照组,超声检测双侧颈总动脉(CCA)、颈内动脉(ICA)、颈外动脉(ECA)及椎动脉(VA).记录各动脉的血流方向、频谱形态、峰值血流速度(PSV)及椎动脉的内径.结果颈动脉窃血时同侧ICA与ECA的血流方向相反,ICA的血液流向头侧,ECA的血液流向尾侧；ICA呈现低频低阻血流频谱,严重时呈静脉样频谱,病例组ICA的PSV低于对照组,两者差异具有统计学意义(P＜0.001)；颈动脉窃血侧ICA和ECA的PSV具有良好的相关性(r =0.77)；椎动脉血流方向正常,内径和血流速度均较对照组增加(P＜0.001).结论彩色多普勒超声可较准确、直观地显示颈动脉窃血的形态学及血流动力学改变,可为临床提供有价值的诊断信息.
목적 탐토채색다보륵초성대대동맥염환자경동맥절혈적진단개치급기혈류동역학특점.방법 19례반유경동맥절혈적대동맥염환자작위병례조,19례건강지원자작위대조조,초성검측쌍측경총동맥(CCA)、경내동맥(ICA)、경외동맥(ECA)급추동맥(VA).기록각동맥적혈류방향、빈보형태、봉치혈류속도(PSV)급추동맥적내경.결과 경동맥절혈시동측ICA여ECA적혈류방향상반,ICA적혈액류향두측,ECA적혈액류향미측；ICA정현저빈저조혈류빈보,엄중시정정맥양빈보,병례조ICA적PSV저우대조조,량자차이구유통계학의의(P＜0.001)；경동맥절혈측ICA화ECA적PSV구유량호적상관성(r =0.77)；추동맥혈류방향정상,내경화혈류속도균교대조조증가(P＜0.001).결론 채색다보륵초성가교준학、직관지현시경동맥절혈적형태학급혈류동역학개변,가위림상제공유개치적진단신식.
Objective To demonstrate the value of color Doppler ultrasound in evaluating carotid artery hemodynamics of carotid steal in patients with Takayasu arteritis (TA).Methods Nineteen TA patients with carotid steal were enrolled as case groups,while 19 healthy volunteers were considered as healthy controls.All the case groups and healthy controls were taken the examination of the common,external,and internal carotid arteries and the vertebral artery under quiescent condition.Bilateral carotid ultrasonography studies were performed,which included gray-scale,pulsed Doppler,and color Doppler ultrasound examinations using 5-8 MHz linear transducers.Results In case groups,blood flow in the internal carotid artery (ICA) was noted cephalad and demonstrated a low frequency,damped,even vein-liked waveform.The peak systolic velocity (PSV) of the ICA in the patients was obviously lower than that in the healthy controls (P ＜0.001).The blood flow in the external carotid artery(ECA) was retrograde.There was a good correlation in the PSV between the external and internal carotid artery,correlation coefficient(r)was 0.77.The vertebral artery (VA) displayed a normally directed flow,significantly larger diameter and higher flow velocity (P ＜ 0.001).Conclusions Color Doppler ultrasonography can sensitively identify carotid steal and permit quantification of carotid artery flow velocities and vertebral artery diameters,which may contribute to guide clinical diagnosis.