Changing the Currently Held Concept of Cerebrospinal Fluid Dynamics Based on Shared Findings of Cerebrospinal Fluid Motion in the Cranial Cavity Using Various Types of Magnetic Resonance Imaging Techniques

Neurologia Medico-chirurgica
Mitsunori MatsumaeTakatoshi Sorimachi

Abstract

The "cerebrospinal fluid (CSF) circulation theory" of CSF flowing unidirectionally and circulating through the ventricles and subarachnoid space in a downward or upward fashion has been widely recognized. In this review, observations of CSF motion using different magnetic resonance imaging (MRI) techniques are described, findings that are shared among these techniques are extracted, and CSF motion, as we currently understand it based on the results from the quantitative analysis of CSF motion, is discussed, along with a discussion of slower water molecule motion in the perivascular, paravascular, and brain parenchyma. Today, a shared consensus regarding CSF motion is being formed, as follows: CSF motion is not a circulatory flow, but a combination of various directions of flow in the ventricles and subarachnoid space, and the acceleration of CSF motion differs depending on the CSF space. It is now necessary to revise the currently held concept that CSF flows unidirectionally. Currently, water molecule motion in the order of centimeters per second can be detected with various MRI techniques. Thus, we need new MRI techniques with high-velocity sensitivity, such as in the order of 10 μm/s, to determine water molecule movement in t...Continue Reading

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Citations

Mar 20, 2020·Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine·Tomohiko HorieMitsunori Matsumae
Dec 19, 2019·Proceedings of the National Academy of Sciences of the United States of America·Xuezhu CaiCraig F Ferris
Dec 1, 2020·Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine·Shinji Naganawa, Toshiaki Taoka
Jan 8, 2021·Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine·Toshiaki TaokaShinji Naganawa
Oct 23, 2020·Nuclear Medicine and Molecular Imaging·Dong Soo LeeYoori Choi
Apr 3, 2021·Fluids and Barriers of the CNS·Per Kristian EideGeir Ringstad
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Jan 18, 2022·Journal of Cerebral Blood Flow and Metabolism : Official Journal of the International Society of Cerebral Blood Flow and Metabolism·Ho-Ching Shawn YangYunjie Tong

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Methods Mentioned

BETA
imaging technique
imaging techniques

Software Mentioned

iMSDE
3DPC
Time
SLIP

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