Volumes and velocities: Meta-analysis of PC-MRI studies in normal pressure hydrocephalus

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61383082%3A_____%2F24%3A00001442" target="_blank" >RIV/61383082:_____/24:00001442 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11110/24:10487766 RIV/00216208:11130/24:10487766 RIV/00064203:_____/24:10487766

Result on the web

<a href="https://pubmed.ncbi.nlm.nih.gov/39560792/" target="_blank" >https://pubmed.ncbi.nlm.nih.gov/39560792/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00701-024-06333-2" target="_blank" >10.1007/s00701-024-06333-2</a>

Result language

angličtina

Original language name

Volumes and velocities: Meta-analysis of PC-MRI studies in normal pressure hydrocephalus

Original language description

Phase contrast magnetic resonance imaging (PC-MRI) represents an opportunity to non-invasively investigate cerebral spinal fluid (CSF) flow in patients with idiopathic normal pressure hydrocephalus (iNPH). Studies in recent years have explored the diagnostic and prognostic value of PC-MRI derived parameters. This review aims to identify all PC-MRI studies of iNPH published since 2010, synthesise a review based on collated results, and analyse specific flow parameters identified in the selected studies. Methods: Our protocol was prospectively registered on PROSPERO [CRD42020180826]. We systematically searched four databases: Pubmed, Web of Science, Ovid, and Cochrane library to identify all eligible studies. Quality assessment was performed using a modified Newcastle–Ottawa Scale [19]. Systematic review was conducted according to Prisma guidelines. A random-effects model was used to perform meta-analysis on the available flow parameters. Results: Eighteen records were identified for inclusion. Five studies were eligible for meta-analysis, representing 107 iNPH patients and 82 controls. CSF flow parameters available for analysis were stroke volume and peak velocity. Both were significantly higher than controls (p = 0.0007 and p = 0.0045 respectively) according to our random-effects analysis, consistent with a model of hyper-dynamic CSF in iNPH. Our systematic review revealed average stroke volumes in iNPH ranging from 43uL to over 200uL. Peak velocity values ranged from 5.9 cm/s to 12.8 cm/s. Conclusion: Significant increases in stroke volume and peak velocity values in iNPH patients suggest a place for PC-MRI as supplementary evidence in the diagnostic work-up of iNPH. Although shunting reduces aqueductal stroke volume and peak velocity, the ability of pre-shunt values to reliably predict treatment response remains complicated. We suggest that it may be more appropriate to consider a range of values that reflect varying probabilities of shunt success. We recommend that future studies should prioritise standardising PC-MRI protocols, and before then PC-MRI findings should be considered supportive rather than determinative.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30103 - Neurosciences (including psychophysiology)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Acta Neurochirurgica

ISSN

0001-6268

e-ISSN

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Volume of the periodical

166

Issue of the periodical within the volume

1

Country of publishing house

AT - AUSTRIA

Number of pages

12

Pages from-to

1-12

UT code for WoS article

001358913100002

EID of the result in the Scopus database

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