Evidence map›Paper›PMID 29047355›Full record

ArticleFluids and barriers of the CNS2017

Hyperdynamic CSF motion profiles found in idiopathic normal pressure hydrocephalus and Alzheimer's disease assessed by fluid mechanics derived from magnetic resonance images.

Ken Takizawa, Mitsunori Matsumae, Naokazu Hayashi, Akihiro Hirayama, Satoshi Yatsushiro, Kagayaki Kuroda

Open access · goldAbstract read
In one paragraph

Article in Fluids and barriers of the CNS, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
0.7field-weighted citation impact, top 35% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 27 citations in OpenAlex.

  1. Mapping subarachnoid cerebrospinal fluid circulation in the human brain.bioRxiv : the preprint server for biology · 2026
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  13. Evaluation of Cardiac- and Respiratory-driven Cerebrospinal Fluid Motions by Applying the S-transform to Steady-state Free Precession Phase Contrast Imaging.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2022
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  16. Characterization of Cardiac- and Respiratory-driven Cerebrospinal Fluid Motions Using a Correlation Mapping Technique Based on Asynchronous Two-dimensional Phase Contrast MR Imaging.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Ken TakizawaDepartment of Neurosurgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 2591193, Japan.
Mitsunori MatsumaeDepartment of Neurosurgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 2591193, Japan. mike@is.icc.u-tokai.ac.jp.ORCID http://orcid.org/0000-0002-9239-9762
Naokazu HayashiDepartment of Neurosurgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 2591193, Japan.
Akihiro HirayamaDepartment of Neurosurgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 2591193, Japan.
Satoshi YatsushiroCourse of Science and Technology, Graduate School of Science and Technology, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa, 2591292, Japan.
Kagayaki KurodaCourse of Science and Technology, Graduate School of Science and Technology, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa, 2591292, Japan.
Tokai University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMagnetic resonance imaging (MRI) does not only ascertain morphological features, but also measures physiological properties such as fluid velocity or pressure gradient. The purpose of this study was to investigate cerebrospinal fluid (CSF) dynamics in patients with morphological abnormalities such as enlarged brain ventricles and subarachnoid spaces. We used a time-resolved three dimensional phase contrast (3D-PC) MRI technique to quantitatively evaluate CSF dynamics in the Sylvian aqueduct of healthy elderly individuals and patients with either idiopathic normal pressure hydrocephalus (iNPH) or Alzheimer's disease (AD) presenting with ventricular enlargement.

methodsNineteen healthy elderly individuals, ten iNPH patients, and seven AD patients (all subjects ≥ 60 years old) were retrospectively evaluated 3D-PC MRI. The CSF velocity, pressure gradient, and rotation in the Sylvian aqueduct were quantified and compared between the three groups using Kolmogorov-Smirnov and Mann-Whitney U tests.

resultsThere was no statistically significant difference in velocity among the three groups. The pressure gradient was not significantly different between the iNPH and AD groups, but was significantly different between the iNPH group and the healthy controls (p < 0.001), and similarly, between the AD group and the healthy controls (p < 0.001). Rotation was not significantly different between the iNPH and AD groups, but was significantly different between the iNPH group and healthy controls (p < 0.001), and similarly, between the AD group and the healthy controls (p < 0.001).

conclusionsQuantitative analysis of CSF dynamics with time resolved 3D-PC MRI revealed differences and similarities in the Sylvian aqueduct between healthy elderly individuals, iNPH patients, and AD patients. The results showed that CSF motion is in a hyperdynamic state in both iNPH and AD patient groups compared to healthy elderly individuals, and that iNPH patients and AD patients display similar CSF motion profiles.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseCerebral AqueductFemaleHumansHydrocephalus, Normal PressureImage Processing, Computer-AssistedImaging, Three-DimensionalMagnetic Resonance ImagingMaleMiddle AgedMotionNeuroimagingRetrospective StudiesAlzheimer’s diseaseCerebrospinal fluidFluid dynamicsIdiopathic normal pressure hydrocephalusMagnetic resonance imaging

Identifiers

PMID29047355
PMCPMC5648475
OpenAlexW2765514507

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.