CAJ | 학술논문

目的利用肢体加压实验,通过观察外周动脉多普勒血流速度曲线变化,阐明外周动脉血流特征,进一步了解外周血管血流动力学状态,更好地为动脉病变超声诊断提供依据.方法随机选取40例健康成人,应用彩色多普勒超声诊断仪记录静息及远端分级加压状态下肱动脉(BA)、桡动脉(RA)、股总动脉(CFA)和腘动脉(POA)及近端加压后BA、RA血流速度曲线,测量收缩期峰值血流速度(PSV)、舒张早期反向血流峰值(PRV)及阻力指数(RI),并进行比较分析.结果静息状态下外周动脉多普勒血流速度曲线呈三相波形.远端及近端加压前后PRV变化显著,PSV变化不显著;近端加压后RI值变化不显著,远端加压后RI增大.结论正常外周动脉呈现与心动周期相对应的复杂“步进式”脉动血流模式,并随肢体加压后呈现规律性变化.
목적 이용지체가압실험,통과관찰외주동맥다보륵혈류속도곡선변화,천명외주동맥혈류특정,진일보료해외주혈관혈류동역학상태,경호지위동맥병변초성진단제공의거.방법 수궤선취40례건강성인,응용채색다보륵초성진단의기록정식급원단분급가압상태하굉동맥(BA)、뇨동맥(RA)、고총동맥(CFA)화객동맥(POA)급근단가압후BA、RA혈류속도곡선,측량수축기봉치혈류속도(PSV)、서장조기반향혈류봉치(PRV)급조력지수(RI),병진행비교분석.결과 정식상태하외주동맥다보륵혈류속도곡선정삼상파형.원단급근단가압전후PRV변화현저,PSV변화불현저;근단가압후RI치변화불현저,원단가압후RI증대.결론 정상외주동맥정현여심동주기상대응적복잡“보진식”맥동혈류모식,병수지체가압후정현규률성변화.
Objective To observe the peripheral arterial Doppler flow velocity curve changes and elucidate the blood flow characteristics by adding extra pressure on the limbs,and to provide evidence for better diagnosis of peripheral arterial diseases by ultrasound.Methods Color Doppler ultrasound instrument was used to record the brachial artery(BA),radial artery(RA),common femoral artery(CFA) and popliteal artery(POA) Doppler flow velocity curves both at rest and under different grades of distal and proximal limb pressuring in 40 randomly selected healthy adults.The peak systolic and early diastolic reverse flow velocity(PSV,PRV) and the resistance index (RI) were measured and analyzed.Results Three-phase waveform was seen at rest.Significant changes were noticed in PRV and RI under distal pressuring,while no significant difference was seen in PSV between groups.Conclusions Normal peripheral arteries show pulsed "step-by-step" blood flow pattern along with the cardiac cycles.Peripheral arterial Doppler flow curves changes regularly with limb grading pressuring.