Evidence map›Paper›PMID 30467214›Full record

ArticleAJNR. American journal of neuroradiology2018

Does Phase-Contrast Imaging through the Cerebral Aqueduct Predict the Outcome of Lumbar CSF Drainage or Shunt Surgery in Patients with Suspected Adult Hydrocephalus?

A M Blitz, J Shin, O Balédent, G Pagé, L W Bonham, D A Herzka, A R Moghekar, D Rigamonti

Abstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

8 authors.

A M BlitzFrom the Division of Neuroradiology, The Russell H. Morgan Department of Radiology and Radiologic Science (A.M.B., J.S., L.W.B.) ablitz1@jhmi.edu.ORCID 0000-0002-6763-2112
J ShinFrom the Division of Neuroradiology, The Russell H. Morgan Department of Radiology and Radiologic Science (A.M.B., J.S., L.W.B.).ORCID 0000-0002-0878-6023
O BalédentDepartment of Image Processing (O.B., G.P.), University Hospital of Picardie Jules Verne, Amiens, Haut de France, France.ORCID 0000-0001-6028-6440
G PagéDepartment of Image Processing (O.B., G.P.), University Hospital of Picardie Jules Verne, Amiens, Haut de France, France.ORCID 0000-0002-4783-9298
L W BonhamFrom the Division of Neuroradiology, The Russell H. Morgan Department of Radiology and Radiologic Science (A.M.B., J.S., L.W.B.).ORCID 0000-0002-2533-1266
D A HerzkaBiomedical Engineering (D.A.H.).ORCID 0000-0002-9400-7814
A R MoghekarNeurology (A.R.M.).ORCID 0000-0001-9464-1551
D RigamontiNeurosurgery (D.R.), Johns Hopkins University School of Medicine, Baltimore, Maryland.ORCID 0000-0001-7569-5001

Funding

Research Supplement to Promote Diversity in Health-Related Research U01DC013778-01A1U01DC013778 · NIDCD · JOHNS HOPKINS UNIVERSITY · PI NEWMAN-TOKER, DAVID · 2014 to 2018
$5.4M
Ventricle segmentation and labeling to characterize normal pressure hydrocephalusR21NS096497 · NINDS · JOHNS HOPKINS UNIVERSITY · PI PRINCE, JERRY L · 2016 to 2017
$426k
NIDCD NIH HHS U01 DC013778NINDS NIH HHS R21 NS096497
6 · The paper itself

Abstract

background and purposeRadiologic imaging plays a key role in diagnosing chronic adult hydrocephalus, but its role in predicting prognosis is still controversial. We sought to evaluate the effectiveness of cardiac-gated phase-contrast MR imaging through the cerebral aqueduct in predicting the clinical response to diagnostic lumbar puncture/lumbar drainage and shunt surgery in suspected adult hydrocephalus. MATERIALS AND

methodsIn this retrospective study, the phase-contrast MR imaging of 185 patients with suspected chronic adult hydrocephalus was evaluated using the CSF Flow software package. Decision-making for shunt placement was performed in this cohort on the basis of clinical assessment alone without the availability of quantitative phase-contrast MR imaging results. We recorded the response to lumbar puncture or lumbar drainage and shunt surgery using quantitative tests such as the Tinetti Test, the Timed Up and Go, and the Mini-Mental State Examination and qualitative measures of gait, urinary, and cognitive symptom improvement before and after lumbar puncture/lumbar drainage and shunt surgery. Quantitative analysis of phase-contrast MR imaging was compared with clinical outcome measures.

resultsBoth CSF stroke volume and flow rate overlapped between lumbar puncture/lumbar drainage responders and nonresponders. There was also a significant overlap between shunt responders and nonresponders. Aqueductal stroke volume or flow rate alone was a poor predictor of lumbar puncture/lumbar drainage and shunt surgery response. Quantitative clinical measures after lumbar puncture/lumbar drainage were better predictors of shunt response.

conclusionsThis study suggests that the results of phase-contrast MR imaging through the cerebral aqueduct alone should not be used to select patients for diagnostic or therapeutic CSF diversion.

Indexed as

AdultAgedCerebral AqueductCerebrospinal Fluid ShuntsCohort StudiesFemaleHumansHydrocephalus, Normal PressureMagnetic Resonance ImagingMaleMiddle AgedRetrospective StudiesSpinal Puncture

Identifiers

PMID30467214
PMCPMC7655420

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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.