Evidence map›Paper›PMID 37827719›Full record

ArticleAJNR. American journal of neuroradiology2023

Perfusion Collateral Index versus Hypoperfusion Intensity Ratio in Assessment of Collaterals in Patients with Acute Ischemic Stroke.

Brian Tsui, Iris E Chen, May Nour, Shingo Kihira, Elham Tavakkol, Jennifer Polson, Haoyue Zhang, Joe Qiao, Mersedeh Bahr-Hosseini, Corey Arnold and 9 more

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

Article in AJNR. American journal of neuroradiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.7field-weighted citation impact, top 14% 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

4 citing papers in PubMed, 8 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

19 authors at 1 institution in 1 country.

Brian TsuiFrom the Department of Radiological Sciences (B.T., I.E.C., M.N., S.K., E.T., J.Q., C.A., S.T., N.S., J.P.V., R.J., G.D., K.N.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0002-5902-5128
Iris E ChenFrom the Department of Radiological Sciences (B.T., I.E.C., M.N., S.K., E.T., J.Q., C.A., S.T., N.S., J.P.V., R.J., G.D., K.N.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0003-1394-6543
May NourFrom the Department of Radiological Sciences (B.T., I.E.C., M.N., S.K., E.T., J.Q., C.A., S.T., N.S., J.P.V., R.J., G.D., K.N.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0001-5493-9679
Shingo KihiraFrom the Department of Radiological Sciences (B.T., I.E.C., M.N., S.K., E.T., J.Q., C.A., S.T., N.S., J.P.V., R.J., G.D., K.N.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0003-1001-8741
Elham TavakkolFrom the Department of Radiological Sciences (B.T., I.E.C., M.N., S.K., E.T., J.Q., C.A., S.T., N.S., J.P.V., R.J., G.D., K.N.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0003-2869-8087
Jennifer PolsonDepartment of Bioengineering (J.P., H.Z., C.A.), University of California, Los Angeles, Los Angeles, California.ORCID 0000-0003-0518-4841
Haoyue ZhangDepartment of Bioengineering (J.P., H.Z., C.A.), University of California, Los Angeles, Los Angeles, California.ORCID 0000-0002-9412-7584
Joe QiaoFrom the Department of Radiological Sciences (B.T., I.E.C., M.N., S.K., E.T., J.Q., C.A., S.T., N.S., J.P.V., R.J., G.D., K.N.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0003-0089-7930
Mersedeh Bahr-HosseiniDepartment of Neurology (M.N., M.B.-H., J.L.S., D.S.L.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0003-3049-4542
Corey ArnoldFrom the Department of Radiological Sciences (B.T., I.E.C., M.N., S.K., E.T., J.Q., C.A., S.T., N.S., J.P.V., R.J., G.D., K.N.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0002-4119-8143
Satoshi TateshimaFrom the Department of Radiological Sciences (B.T., I.E.C., M.N., S.K., E.T., J.Q., C.A., S.T., N.S., J.P.V., R.J., G.D., K.N.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0003-0060-0930
Noriko SalamonFrom the Department of Radiological Sciences (B.T., I.E.C., M.N., S.K., E.T., J.Q., C.A., S.T., N.S., J.P.V., R.J., G.D., K.N.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0002-3520-9467
J Pablo VillablancaFrom the Department of Radiological Sciences (B.T., I.E.C., M.N., S.K., E.T., J.Q., C.A., S.T., N.S., J.P.V., R.J., G.D., K.N.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0002-7066-0341
Geoffrey P ColbyDepartment of Neurosurgery (G.P.C.), University of California, Los Angeles, Los Angeles, California.ORCID 0000-0002-3376-0933
Reza JahanFrom the Department of Radiological Sciences (B.T., I.E.C., M.N., S.K., E.T., J.Q., C.A., S.T., N.S., J.P.V., R.J., G.D., K.N.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0001-7389-6352
Gary DuckwilerFrom the Department of Radiological Sciences (B.T., I.E.C., M.N., S.K., E.T., J.Q., C.A., S.T., N.S., J.P.V., R.J., G.D., K.N.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0002-5459-396X
Jeffrey L SaverDepartment of Neurology (M.N., M.B.-H., J.L.S., D.S.L.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0001-9141-2251
David S LiebeskindDepartment of Neurology (M.N., M.B.-H., J.L.S., D.S.L.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.ORCID 0000-0002-5109-8736
Kambiz NaelFrom the Department of Radiological Sciences (B.T., I.E.C., M.N., S.K., E.T., J.Q., C.A., S.T., N.S., J.P.V., R.J., G.D., K.N.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California kambiznael@gmail.com.ORCID 0000-0002-4194-9488
University of California, Los Angeles · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposePerfusion-based collateral indices such as the perfusion collateral index and the hypoperfusion intensity ratio have shown promise in the assessment of collaterals in patients with acute ischemic stroke. We aimed to compare the diagnostic performance of the perfusion collateral index and the hypoperfusion intensity ratio in collateral assessment compared with angiographic collaterals and outcome measures, including final infarct volume, infarct growth, and functional independence. MATERIALS AND

methodsConsecutive patients with acute ischemic stroke with anterior circulation proximal arterial occlusion who underwent endovascular thrombectomy and had pre- and posttreatment MRI were included. Using pretreatment MR perfusion, we calculated the perfusion collateral index and the hypoperfusion intensity ratio for each patient. The angiographic collaterals obtained from DSA were dichotomized to sufficient (American Society of Interventional and Therapeutic Neuroradiology [ASITN] scale 3-4) versus insufficient (ASITN scale 0-2). The association of collateral status determined by the perfusion collateral index and the hypoperfusion intensity ratio was assessed against angiographic collaterals and outcome measures.

resultsA total of 98 patients met the inclusion criteria. Perfusion collateral index values were significantly higher in patients with sufficient angiographic collaterals (

conclusionsResults show that the perfusion collateral index outperforms the hypoperfusion intensity ratio in the assessment of collateral status, infarct growth, and determination of functional outcomes.

Indexed as

Brain IschemiaIschemic StrokeStrokeCollateral CirculationHumansInfarctionMagnetic Resonance ImagingPerfusionThrombectomy

Identifiers

PMID37827719
PMCPMC10631520
OpenAlexW4387569690

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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.