Evidence map›Paper›PMID 27102311›Full record

ArticleAJNR. American journal of neuroradiology2016

Contrast-Enhanced and Time-of-Flight MRA at 3T Compared with DSA for the Follow-Up of Intracranial Aneurysms Treated with the WEB Device.

C Timsit, S Soize, A Benaissa, C Portefaix, J-Y Gauvrit, L Pierot

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In one paragraph

Article in AJNR. American journal of neuroradiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 3 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

29 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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  19. Imaging of Intracranial Saccular Aneurysms.Stroke (Hoboken, N.J.) · 2023
    Review
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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.

C TimsitFrom the Department of Neuroradiology (C.T., S.S., A.B., L.P.), Hôpital Maison Blanche, Université de Champagne-Ardenne, Reims, France.ORCID 0000-0002-8449-2262
S SoizeFrom the Department of Neuroradiology (C.T., S.S., A.B., L.P.), Hôpital Maison Blanche, Université de Champagne-Ardenne, Reims, France.ORCID 0000-0002-6893-661X
A BenaissaFrom the Department of Neuroradiology (C.T., S.S., A.B., L.P.), Hôpital Maison Blanche, Université de Champagne-Ardenne, Reims, France.ORCID 0000-0002-2721-5023
C PortefaixCReSTIC SIC EA3804 (C.P.), Université de Champagne-Ardenne, Reims, France.ORCID 0000-0002-2179-0182
J-Y GauvritDepartment of Neuroradiology (J.-Y.G.), Hôpital Pontchaillou, Rennes, France Unité VISAGES U746 INSERM-INRIA (J.-Y.G.), IRISA UMR CNRS 6074, University of Rennes, Rennes, France.ORCID 0000-0002-8057-6004
L PierotFrom the Department of Neuroradiology (C.T., S.S., A.B., L.P.), Hôpital Maison Blanche, Université de Champagne-Ardenne, Reims, France lpierot@gmail.com.ORCID 0000-0002-2523-4909

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeImaging follow-up at 3T of intracranial aneurysms treated with the WEB Device has not been evaluated yet. Our aim was to assess the diagnostic accuracy of 3D-time-of-flight MRA and contrast-enhanced MRA at 3T against DSA, as the criterion standard, for the follow-up of aneurysms treated with the Woven EndoBridge (WEB) system. MATERIALS AND

methodsFrom June 2011 to December 2014, patients treated with the WEB in our institution, then followed for ≥6 months after treatment by MRA at 3T (3D-TOF-MRA and contrast-enhanced MRA) and DSA within 48 hours were included. Aneurysm occlusion was assessed with a simplified 2-grade scale (adequate occlusion [total occlusion + neck remnant] versus aneurysm remnant). Interobserver and intermodality agreement was evaluated by calculating the linear weighted κ. MRA test characteristics and predictive values were calculated from a 2 × 2 contingency table, by using DSA data as the standard of reference.

resultsTwenty-six patients with 26 WEB-treated aneurysms were included. The interobserver reproducibility was good with DSA (κ = 0.71) and contrast-enhanced-MRA (κ = 0.65) compared with moderate with 3D-TOF-MRA (κ = 0.47). Intermodality agreement with DSA was fair with both contrast-enhanced MRA (κ = 0.36) and 3D-TOF-MRA (κ = 0.36) for the evaluation of total occlusion. For aneurysm remnant detection, the prevalence was low (15%), on the basis of DSA, and both MRA techniques showed low sensitivity (25%), high specificity (100%), very good positive predictive value (100%), and very good negative predictive value (88%).

conclusionsDespite acceptable interobserver reproducibility and predictive values, the low sensitivity of contrast-enhanced MRA and 3D-TOF-MRA for aneurysm remnant detection suggests that MRA is a useful screening procedure for WEB-treated aneurysms, but similar to stents and flow diverters, DSA remains the criterion standard for follow-up.

Indexed as

AdultAgedAngiography, Digital SubtractionCerebral AngiographyEmbolization, TherapeuticFemaleFollow-Up StudiesHumansIntracranial AneurysmMagnetic Resonance AngiographyMaleMiddle AgedReproducibility of ResultsSensitivity and SpecificityStentsTreatment Outcome

Identifiers

PMID27102311
PMCPMC7984701

What OpenQuestion holds

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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.