Analysis of cerebrospinal fluid flow waveforms with gated phase-contrast MR velocity measurements.
Analysis of cerebrospinal fluid flow waveforms with gated phase-contrast MR velocity measurements.
复制标题
使用门控相衬 MR 速度测量分析脑脊液流波形。
DOI：
--
复制
发表时间：
1995
期刊：
影响因子：
--
通讯作者：
Samuel M. Wolpert
中科院分区：
文献类型：
--
作者：
R. Bhadelia;Andrew R. Bogdan;Samuel M. Wolpert
目的
目的分析正常人脑脊液（CSF）血流波形特征，并将其与动脉输入和静脉输出血流波形相联系。
方法
在17名志愿者中获得了电影相位对比MR。将来自颈部围索CSF空间、基底池和导水管以及颈内动脉和椎动脉和颈内静脉的时间速度信息绘制为波形。分析波形的配置、振幅和时间模式。在4名志愿者中，在不同的日子检查了预记录CSF流波形的再现性。在三名志愿者中，还评价了颈静脉压迫对记录前和导水管CSF流量波形的影响。
结果
(a)在CSF流波形中观察到明显的和可重复的构型特征。颈静脉压迫使预记录波形的二阶斜率升高。(b)振幅是可变的。颈静脉压迫使脑脊液流速降低。(c)收缩期时间参数比舒张期时间参数变化更小，更具重现性。颈静脉压迫导致收缩参数的precord波形延迟。(d)颅尾和颅尾脊髓后CSF流与记录前CSF流同时或早于记录前CSF流发生。Pericord CSF在任一方向上的流动先于在脑池和导水管中的流动。(e)在预记录空间中，R波至最大速度的时间与动脉血流之间存在显著的时间关系。
结论
脑脊液流量波形分析似乎是一种可靠的，可重复的，和敏感的方法，用于评估CSF动力学。
PURPOSE
To analyze the characteristics of normal cerebrospinal fluid (CSF) flow waveforms and to relate them to the arterial input and venous output flow waveforms in healthy volunteers.
METHODS
Cine phase-contrast MR was obtained in 17 volunteers. The temporal velocity information from the cervical pericord CSF spaces, basal cisterns, and aqueduct, as well as the internal carotid and vertebral arteries and internal jugular veins, were plotted as waveforms. The waveforms were analyzed for configurations, amplitudes, and temporal patterns. In four volunteers the reproducibility of the precord CSF flow waveforms was examined on different days. In three volunteers the effect of jugular venous compression on the precord and aqueductal CSF flow waveforms was also evaluated.
RESULTS
(a) Distinct and reproducible configurational features were observed in the CSF flow waveforms. Jugular venous compression produced elevation of the disatolic slope of the precord waveforms. (b) The amplitudes were variable. Jugular venous compression reduced the precord CSF velocities. (c) The systolic temporal parameters were less variable and more reproducible than the diastolic temporal parameters. Jugular venous compression resulted in delay in the systolic parameters of the precord waveforms. (d) Craniocaudal and caudocranial postcord CSF flow occurred either simultaneous with or earlier than the precord CSF flow. Pericord CSF flow in either direction preceded that in the cisterns and in the aqueduct. (e) A significant temporal relationship was noted in the precord space between the time of the R wave to the maximum velocities and the arterial flow.
CONCLUSION
CSF flow waveform analysis seems to be a reliable, reproducible, and sensitive method for assessing the CSF dynamics.
面内层流的定量相速度 MR 成像：流体速度、血管直径和切片厚度的影响。
影响因子：
3.8
作者：
Kraft,KA;Fei,DY;Fatouros,PP
通讯作者：
Fatouros,PP