Hemodynamic study of the peripheral arterial Doppler flow velocity curve changes with limbs pressuring and its clinical application
10.3760/cma.j.issn.1004-4477.2014.09.009
- VernacularTitle:肢体加压后外周动脉多普勒血流速度曲线变化的研究及其临床意义
- Author:
Huari REN
;
Kun WANG
;
Changyang XING
;
Yong YANG
;
Lijun YUAN
;
Yunyou DUAN
;
Tiesheng GAO
- Publication Type:Journal Article
- Keywords:
Ultrasonography,Doppler;
Peripheral artery;
Hemodynamics
- From:
Chinese Journal of Ultrasonography
2014;23(9):765-768
- CountryChina
- Language:Chinese
-
Abstract:
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.
