Bogren H G, Buonocore M H, Gu W Z
Department of Radiology, University of California Davis Medical Center, Sacramento 95817.
J Magn Reson Imaging. 1994 Jan-Feb;4(1):37-42. doi: 10.1002/jmri.1880040110.
The goal of the study was to establish normal carotid artery flow rates in left-handed and right-handed individuals as a standard against which patients with carotid artery disease could be compared. Antegrade and retrograde flow were measured in the ascending aorta, in the right and left common, internal, and external carotid arteries, and in the vertebral arteries of 12 healthy subjects. Five subjects were right-handed, five left-handed, and two ambidextrous. Measured flow rates were as follows: common carotid arteries, 360-557 mL/min (mean [+/- standard deviation], 465 mL/min +/- 52); internal carotid arteries, 132-367 mL/min (mean, 265 mL/min +/- 60); external carotid arteries, 113-309 mL/min (mean, 186 mL/min +/- 51); vertebral arteries from 133-308 mL/min (mean, 244 mL/min +/- 43); and cerebral circulation, 546-931 mL/min (mean, 774 mL/min +/- 134). All right-handed subjects had higher flow rates in the left internal carotid artery than in the right, and all left-handed subjects had higher flow rates in the right internal carotid artery (P = .007). There were no significant differences in left and right common carotid artery flow rates between left- and right-handed subjects. The standard deviation of a single measurement was 5%. The flow rates were similar to those obtained previously with other techniques and could be used as a normal standard.
该研究的目的是确定左利手和右利手个体的正常颈动脉血流速度，作为与颈动脉疾病患者进行比较的标准。对12名健康受试者的升主动脉、左右颈总动脉、颈内动脉、颈外动脉以及椎动脉的顺行和逆行血流进行了测量。其中5名受试者为右利手，5名受试者为左利手，2名受试者为双手灵巧。测量的血流速度如下：颈总动脉为360 - 557毫升/分钟（平均值[±标准差]，465毫升/分钟±52）；颈内动脉为132 - 367毫升/分钟（平均值，265毫升/分钟±60）；颈外动脉为113 - 309毫升/分钟（平均值，186毫升/分钟±51）；椎动脉为133 - 308毫升/分钟（平均值，244毫升/分钟±43）；脑循环为546 - 931毫升/分钟（平均值，774毫升/分钟±134）。所有右利手受试者左颈内动脉的血流速度高于右颈内动脉，所有左利手受试者右颈内动脉的血流速度更高（P = 0.007）。左利手和右利手受试者的左右颈总动脉血流速度没有显著差异。单次测量的标准差为5%。这些血流速度与之前使用其他技术获得的结果相似，可作为正常标准。
