Evidence map›Paper›PMID 36202551›Full record

ArticleAJNR. American journal of neuroradiology2022

Correlation of Collateral Scores Derived from Whole-Brain Time-Resolved Flat Panel Detector Imaging in Acute Ischemic Stroke.

C C Kurmann, J Kaesmacher, S Pilgram-Pastor, E I Piechowiak, A Scutelnic, M R Heldner, T Dobrocky, J Gralla, P Mordasini

Open access · hybridAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in AJNR. American journal of neuroradiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

8 citing papers in PubMed, 11 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

9 authors at 4 institutions in 2 countries.

C C KurmannFrom the University Institute of Diagnostic and Interventional Neuroradiology (C.C.K., J.K., S.P.-P., E.I.P., T.D., J.G., P.M.).ORCID 0000-0001-5770-5675
J KaesmacherFrom the University Institute of Diagnostic and Interventional Neuroradiology (C.C.K., J.K., S.P.-P., E.I.P., T.D., J.G., P.M.).ORCID 0000-0002-9177-2289
S Pilgram-PastorFrom the University Institute of Diagnostic and Interventional Neuroradiology (C.C.K., J.K., S.P.-P., E.I.P., T.D., J.G., P.M.).
E I PiechowiakFrom the University Institute of Diagnostic and Interventional Neuroradiology (C.C.K., J.K., S.P.-P., E.I.P., T.D., J.G., P.M.).ORCID 0000-0001-5609-0998
A ScutelnicDepartment of Neurology (A.S., M.R.H.), University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.ORCID 0000-0001-9053-584X
M R HeldnerDepartment of Neurology (A.S., M.R.H.), University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.ORCID 0000-0002-3594-2159
T DobrockyFrom the University Institute of Diagnostic and Interventional Neuroradiology (C.C.K., J.K., S.P.-P., E.I.P., T.D., J.G., P.M.).ORCID 0000-0002-6167-3343
J GrallaFrom the University Institute of Diagnostic and Interventional Neuroradiology (C.C.K., J.K., S.P.-P., E.I.P., T.D., J.G., P.M.).ORCID 0000-0003-1953-9033
P MordasiniFrom the University Institute of Diagnostic and Interventional Neuroradiology (C.C.K., J.K., S.P.-P., E.I.P., T.D., J.G., P.M.) Pasquale.mordasini@insel.ch.ORCID 0000-0003-1712-4168
Hesco (United States) · USUniversity of Bern · CHSociety of Interventional Radiology · USS.P.E.C.I.E.S. · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeFlat panel detector CT imaging allows simultaneous acquisition of multiphase flat panel CTA and flat panel CTP imaging directly in the angio suite. We compared collateral assessment derived from multiphase flat panel CTA and flat panel CTP with collateral assessment derived from DSA as the gold-standard. MATERIALS AND

methodsWe performed a retrospective analysis of patients with occlusion of the first or second segment of the MCA who underwent pre-interventional flat panel detector CT. The hypoperfusion intensity ratio as a correlate of collateral status was calculated from flat panel CTP (time-to-maximum > 10 seconds volume/time-to-maximum > 6 seconds volume). Intraclass correlation coefficients were calculated for interrater reliability for the Calgary/Menon score for multiphase flat panel CTA and for the American Society of Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology (ASITN/SIR) score for DSA collateral scores. Correlations of the hypoperfusion intensity ratio, multiphase flat panel CTA score, and the ASITN/SIR score were calculated using the Spearman correlation.

resultsFrom November 2019 to February 2020, thirty patients were included. Moderate interrater reliability was achieved for the ASITN/SIR DSA score (0.68; 95% CI, 0.50-0.82) as well as for the Calgary/Menon multiphase flat panel CTA score (0.53; 95% CI, 0.29-0.72). We found a strong correlation between the ASITN/SIR DSA and Calgary/Menon multiphase flat panel CTA score (ρ = 0.54,

conclusionsThe Calgary/Menon multiphase flat panel CTA score and the hypoperfusion intensity ratio correlated with each other and with the ASITN/SIR DSA score as the gold-standard. In our cohort, the collateral scoring derived from flat panel detector CT was clinically reliable.

Indexed as

Brain IschemiaIschemic StrokeStrokeBrainCerebral AngiographyCollateral CirculationComputed Tomography AngiographyHumansReproducibility of ResultsRetrospective Studies

Identifiers

PMID36202551
PMCPMC9731240
OpenAlexW4302424593

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.