Evidence map›Paper›PMID 24948506›Full record

ArticleAJNR. American journal of neuroradiology2014

Cranial arachnoid protrusions and contiguous diploic veins in CSF drainage.

S Tsutsumi, I Ogino, M Miyajima, M Nakamura, Y Yasumoto, H Arai, M Ito

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.0field-weighted citation impact, top 29% 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

14 citing papers in PubMed, 27 citations in OpenAlex.

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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

7 authors at 3 institutions in 1 country.

S TsutsumiFrom the Department of Neurological Surgery (S.T., Y.Y., M.I.), Juntendo University Urayasu Hospital, Chiba, Japan shotaro@juntendo-urayasu.jp.
I OginoDepartment of Neurological Surgery (I.O., M.M., H.A.), Juntendo University School of Medicine, Tokyo, Japan.
M MiyajimaDepartment of Neurological Surgery (I.O., M.M., H.A.), Juntendo University School of Medicine, Tokyo, Japan.
M NakamuraDivision of Radiological Technology (M.N.), Medical Satellite Yaesu Clinic, Tokyo, Japan.
Y YasumotoFrom the Department of Neurological Surgery (S.T., Y.Y., M.I.), Juntendo University Urayasu Hospital, Chiba, Japan.
H AraiDepartment of Neurological Surgery (I.O., M.M., H.A.), Juntendo University School of Medicine, Tokyo, Japan.
M ItoFrom the Department of Neurological Surgery (S.T., Y.Y., M.I.), Juntendo University Urayasu Hospital, Chiba, Japan.
Juntendo University · JPJuntendo University Urayasu Hospital · JPOkayama Psychiatric Medical Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeStudies have suggested that arachnoid villi or granulations found in the walls of the cranial dural sinuses, olfactory mucosa, and cranial nerve sheaths function as outlets for intracranial CSF. However, their role as CSF outlets has not yet been verified. Here we show that arachnoid protrusions and contiguous diploic veins provide an alternative drainage route for intracranial CSF. MATERIALS AND

methodsFour hundred patients with intact skull, dura mater, and dural sinuses underwent MR imaging to explore arachnoids protruding into the skull and diploic veins. Patients with symptoms of increased intracranial pressure or intracranial hypotension were excluded. For 15 patients undergoing craniotomy, both peripheral and diploic venous blood was collected. Albumin and the CSF-specific biomarkers were measured by enzyme-linked immunosorbent assay.

resultsWith MR imaging, arachnoid protrusions into the skull and contiguous diploic veins were consistently identified throughout the cranium with their characteristic appearance depending on the cranial region. In addition, elevated amounts of prostaglandin D synthase and cystatin C were confirmed in diploic veins compared with peripheral venous blood.

conclusionsDiploic veins are distributed ubiquitously throughout the cranium. A portion of the intracranial CSF may be drained through arachnoid protrusions and contiguous diploic veins.

Indexed as

AdultAgedArachnoidCerebrospinal FluidDura MaterFemaleHumansMaleMiddle AgedVeins

Identifiers

PMID24948506
PMCPMC7966289
OpenAlexW2111441251

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.