健康志愿者颈动脉分叉处的血流速度和血流分配情况。
Carotid flow rates and flow division at the bifurcation in healthy volunteers.
作者信息
Marshall Ian, Papathanasopoulou Panorea, Wartolowska Karolina
机构信息
Medical Physics, Division of Medical and Radiological Sciences, University of Edinburgh, Western General Hospital, Edinburgh, EH4 2XU, UK.
出版信息
Physiol Meas. 2004 Jun;25(3):691-7. doi: 10.1088/0967-3334/25/3/009.
In nine healthy subjects, magnetic resonance imaging was used to measure blood flow waveforms in the common (CCA), internal (ICA) and external (ECA) carotid arteries. Useful data were acquired from 14 carotid arteries in total. Flow rates were determined from regions of interest placed over the arteries in CINE-phase contrast velocity encoded images. Use of a normalized cardiac cycle allowed the combination of flow waveforms from individuals. Time-averaged group mean flow rates were 6.16, 4.14 and 1.59 ml s(-1) for the CCA, ICA and ECA, respectively. Time-averaged values for the flow division ratios ICA/CCA, ECA/ICA and ECA/CCA were 0.70, 0.39 and 0.26, respectively. The data will be of use in future physiological studies and in computational modelling of carotid artery haemodynamics.
在9名健康受试者中，采用磁共振成像测量颈总动脉（CCA）、颈内动脉（ICA）和颈外动脉（ECA）的血流波形。总共从14条颈动脉获取了有用数据。通过在电影相位对比速度编码图像中放置在动脉上的感兴趣区域来确定流速。使用标准化心动周期可以将个体的血流波形进行合并。颈总动脉、颈内动脉和颈外动脉的时间平均组平均流速分别为6.16、4.14和1.59 ml s(-1)。颈内动脉/颈总动脉、颈外动脉/颈内动脉和颈外动脉/颈总动脉的血流分流比的时间平均值分别为0.70、0.39和0.26。这些数据将用于未来的生理学研究以及颈动脉血流动力学的计算建模。
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