Evidence map›Paper›PMID 28950883›Full record

ArticleFluids and barriers of the CNS2017

Characterization of cardiac- and respiratory-driven cerebrospinal fluid motion based on asynchronous phase-contrast magnetic resonance imaging in volunteers.

Ken Takizawa, Mitsunori Matsumae, Saeko Sunohara, 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 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

41 citing papers in PubMed, 68 citations in OpenAlex.

  1. Trial
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  11. Paediatric pineal region cysts: enigma or impaired neurofluid system?Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2023
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. 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
    Article
  19. Article
  20. The glymphatic hypothesis: the theory and the evidence.Fluids and barriers of the CNS · 2022
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 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
Saeko SunoharaCourse of Science and Technology, Graduate School of Science and Technology, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa, 2591292, 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

backgroundA classification of cardiac- and respiratory-driven components of cerebrospinal fluid (CSF) motion has been demonstrated using echo planar imaging and time-spatial labeling inversion pulse techniques of magnetic resonance imaging (MRI). However, quantitative characterization of the two motion components has not been performed to date. Thus, in this study, the velocities and displacements of the waveforms of the two motions were quantitatively evaluated based on an asynchronous two-dimensional (2D) phase-contrast (PC) method followed by frequency component analysis.

methodsThe effects of respiration and cardiac pulsation on CSF motion were investigated in 7 healthy subjects under guided respiration using asynchronous 2D-PC 3-T MRI. The respiratory and cardiac components in the foramen magnum and aqueduct were separated, and their respective fractions of velocity and amount of displacement were compared.

resultsFor velocity in the Sylvian aqueduct and foramen magnum, the fraction attributable to the cardiac component was significantly greater than that of the respiratory component throughout the respiratory cycle. As for displacement, the fraction of the respiratory component was significantly greater than that of the cardiac component in the aqueduct regardless of the respiratory cycle and in the foramen magnum in the 6- and 10-s respiratory cycles. There was no significant difference between the fractions in the 16-s respiratory cycle in the foramen magnum.

conclusionsTo separate cardiac- and respiratory-driven CSF motions, asynchronous 2D-PC MRI was performed under respiratory guidance. For velocity, the cardiac component was greater than the respiratory component. In contrast, for the amount of displacement, the respiratory component was greater.

Indexed as

AdultCerebrospinal FluidFemaleHealthy VolunteersHeartHumansMagnetic Resonance ImagingMaleMotionNeuroimagingPulsatile FlowRespirationYoung AdultCerebrospinal fluidFluid dynamicsMagnetic resonance imagingPhase-contrast imageQuantitative analysis

Identifiers

PMID28950883
PMCPMC5615451
OpenAlexW2754322719

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LicenceCC BY
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Registered trials

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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.