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Updated: Aug 24, 2026

Phase Contrast Magnetic Resonance Imaging in the Rat Common Carotid Artery
Published on: September 5, 2018
Intracranial fluid dynamics in normal and hydrocephalic states: systems analysis with phase-contrast magnetic
Giovanni de Marco1, Ilana Idy-Peretti, Anne Didon-Poncelet
1Department of Biophysics and Image Processing, Northern Hospital, and University of Picardie Jules Verne, Amiens, France.
Objective:
To present a novel magnetic resonance (MR) method of analysis of cerebrospinal fluid (CSF) flow dynamics.
Methods:
Fifty-one subjects were explored with phase-contrast cine MR imaging. There were 36 volunteers, 9 patients with normal pressure hydrocephalus (NPH), and 6 patients with asymptomatic ventricular dilation (VD). The transfer function XFRA/CSF from the arterial pulse waves (APWs) and the CSF pulse waves (CSFPWs) and the transfer function XFRCSF/SS from the CSF pulse waves (CSFPWs) and the sagittal sinus pulse waves (SSPWs) were studied separately.
Results:
There was a significant difference in the amplitude spectrum of the XFRA/CSF of patients with VD and volunteers (P < 0.05) and in that of patients with NPH and volunteers (P = 0.005). The amplitude of the fundamental frequency was higher in the NPH group than in the VD group (P = 0.02). In patients with NPH, the amplitude spectrum of XFRCSF/SS showed an attenuation of the pulse wave components that significantly differed from the observed amplification in healthy subjects (P = 0.009) and patients with VD (P = 0.012).
Conclusion:
This systems analysis method could help to detect increased venous compliance in VD and decreased venous compliance in NPH.
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