Visual assessment of cerebrospinal fluid flow dynamics using 3D T2-weighted SPACE sequence-based classification system.

IF 1.1 4区 医学 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Acta radiologica Pub Date : 2024-11-03 DOI:10.1177/02841851241288219
İbrahim Feyyaz Naldemir, Ahmet Kursat Karaman, Hayri Ogul, Omer Onbas
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Abstract

Background: Flow-related signal void artifacts can be visualized on the T2-weighted (T2W) three-dimensional sampling perfection with application-optimized contrast (3D-SPACE) sequence. Flow void artifacts in the cerebral aqueduct and the fourth ventricle can provide information about cerebrospinal fluid (CSF) flow dynamics.

Purpose: In this study, we aimed to test the performance of the T2W 3D-SPACE sequence in assessing the CSF flow in the aqueduct and/or fourth ventricle.

Material and methods: A total of 137 patients (age range = 3-89 years) who underwent CSF flow study were included. The amount of signal loss on T2W 3D-SPACE due to flow in the aqueduct and fourth ventricle was assessed and graded using a 4-point scale of 0 (absence of flow void) to 3 (signal void filling the aqueduct and entire fourth ventricle). A correlation was then sought between the quantitative values obtained by phase-contrast magnetic resonance imaging (PC-MRI) and the amount of signal void in the 3D-SPACE sequence.

Results: At the aqueduct level, there was a statistically significant difference in the forward flow velocity and the flow volume among different grades (all P < 0.001). In the grade 3 group, CSF peak systolic flow velocity and mean flow volume were found to be significantly higher than in the other grades (P < 0.001). The mean aqueduct area in the grade 0 group was found to be significantly different from that in the other classes (P < 0.001).

Conclusion: The amount of signal loss in the fourth ventricle observed on T2W 3D-SPACE is correlated with the peak systolic velocity and flow volume measured quantitatively in PC-MRI.

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利用基于三维 T2 加权 SPACE 序列分类系统对脑脊液流动态进行可视化评估。
背景:T2加权(T2W)三维取样完善与应用优化对比(3D-SPACE)序列可观察到与血流相关的信号空洞伪影。目的:在本研究中,我们旨在测试 T2W 3D-SPACE 序列在评估导水管和/或第四脑室 CSF 流量方面的性能:共纳入 137 名接受 CSF 流研究的患者(年龄范围 = 3-89 岁)。对导水管和第四脑室中因血流造成的 T2W 3D-SPACE 信号丢失量进行评估,并采用 4 级评分法进行评分,从 0(无血流空洞)到 3(信号空洞充满导水管和整个第四脑室)。然后将相位对比磁共振成像(PC-MRI)获得的定量值与 3D-SPACE 序列中的信号空白量进行相关性分析:结果:在导水管层面,不同等级的前向血流速度和血流体积存在显著的统计学差异(均为 P P P P 结论):T2W 3D-SPACE 观察到的第四心室信号缺失量与 PC-MRI 定量测量的收缩期峰值速度和血流量相关。
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来源期刊
Acta radiologica
Acta radiologica 医学-核医学
CiteScore
2.70
自引率
0.00%
发文量
170
审稿时长
3-8 weeks
期刊介绍: Acta Radiologica publishes articles on all aspects of radiology, from clinical radiology to experimental work. It is known for articles based on experimental work and contrast media research, giving priority to scientific original papers. The distinguished international editorial board also invite review articles, short communications and technical and instrumental notes.
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