Hypoperfusion Intensity Ratio Less Than 0.4 is Associated with Favorable Outcomes in Unsuccessfully Reperfused Acute Ischemic Stroke with Large-Vessel Occlusion

Vivek Yedavalli; Hamza Adel Salim; Aneri Balar; Dhairya A. Lakhani; Janet Mei; Hanzhang Lu; Licia Luna; Francis Deng; Vaibhav Vagal; Nathan Z. Hyson; Jens Fiehler; Paul Stracke; Gabriel Broocks; Christian Heitkamp; Gregory W. Albers; Max Wintermark; Tobias D. Faizy; Jeremy J. Heit

doi:10.3174/ajnr.A8518

Research ArticleNEUROVASCULAR/STROKE IMAGING

Hypoperfusion Intensity Ratio Less Than 0.4 is Associated with Favorable Outcomes in Unsuccessfully Reperfused Acute Ischemic Stroke with Large-Vessel Occlusion

Vivek Yedavalli, Hamza Adel Salim, Aneri Balar, Dhairya A. Lakhani, Janet Mei, Hanzhang Lu, Licia Luna, Francis Deng, Vaibhav Vagal, Nathan Z. Hyson, Jens Fiehler, Paul Stracke, Gabriel Broocks, Christian Heitkamp, Gregory W. Albers, Max Wintermark, Tobias D. Faizy and Jeremy J. Heit

American Journal of Neuroradiology February 2025, DOI: https://doi.org/10.3174/ajnr.A8518

Vivek Yedavalli

aFrom the Department of Radiology, Division of Neuroradiology (V.Y., H.A.S., J.M., H.L., L.L., F.D., N.Z.H.), Johns Hopkins Medical Center, Baltimore, Maryland

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Hamza Adel Salim

aFrom the Department of Radiology, Division of Neuroradiology (V.Y., H.A.S., J.M., H.L., L.L., F.D., N.Z.H.), Johns Hopkins Medical Center, Baltimore, Maryland

fDepartment of Neuroradiology (H.A.S., M.W.), The University of Texas MD Anderson Center, Houston, Texas

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Aneri Balar

gDepartment of Radiology, Division of Neuroradiology (A.B., D.A.L.), West Virginia University, Morgantown, WV, USA

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Dhairya A. Lakhani

gDepartment of Radiology, Division of Neuroradiology (A.B., D.A.L.), West Virginia University, Morgantown, WV, USA

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Janet Mei

aFrom the Department of Radiology, Division of Neuroradiology (V.Y., H.A.S., J.M., H.L., L.L., F.D., N.Z.H.), Johns Hopkins Medical Center, Baltimore, Maryland

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Hanzhang Lu

aFrom the Department of Radiology, Division of Neuroradiology (V.Y., H.A.S., J.M., H.L., L.L., F.D., N.Z.H.), Johns Hopkins Medical Center, Baltimore, Maryland

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Licia Luna

aFrom the Department of Radiology, Division of Neuroradiology (V.Y., H.A.S., J.M., H.L., L.L., F.D., N.Z.H.), Johns Hopkins Medical Center, Baltimore, Maryland

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Francis Deng

aFrom the Department of Radiology, Division of Neuroradiology (V.Y., H.A.S., J.M., H.L., L.L., F.D., N.Z.H.), Johns Hopkins Medical Center, Baltimore, Maryland

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Vaibhav Vagal

bRenaissance School of Medicine at Stony Brook University (V.V.), Stony Brook, New York

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Nathan Z. Hyson

aFrom the Department of Radiology, Division of Neuroradiology (V.Y., H.A.S., J.M., H.L., L.L., F.D., N.Z.H.), Johns Hopkins Medical Center, Baltimore, Maryland

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Jens Fiehler

cDepartment of Radiology (J.F., G.B., C.H.), Neuroendovascular Program, University Medical Center Hamburg, Hamburg, Germany

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Paul Stracke

dDepartment of Radiology (P.S., T.D.F.), Neuroendovascular Program, University Medical Center Münster, Münster, Germany

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Gabriel Broocks

cDepartment of Radiology (J.F., G.B., C.H.), Neuroendovascular Program, University Medical Center Hamburg, Hamburg, Germany

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Christian Heitkamp

cDepartment of Radiology (J.F., G.B., C.H.), Neuroendovascular Program, University Medical Center Hamburg, Hamburg, Germany

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Gregory W. Albers

eDepartment of Interventional Neuroradiology (G.W.A., J.J.H.), Stanford Medical Center, Palo Alto, California

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Max Wintermark

fDepartment of Neuroradiology (H.A.S., M.W.), The University of Texas MD Anderson Center, Houston, Texas

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Tobias D. Faizy

dDepartment of Radiology (P.S., T.D.F.), Neuroendovascular Program, University Medical Center Münster, Münster, Germany

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Jeremy J. Heit

eDepartment of Interventional Neuroradiology (G.W.A., J.J.H.), Stanford Medical Center, Palo Alto, California

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Hypoperfusion Intensity Ratio Less Than 0.4 is Associated with Favorable Outcomes in Unsuccessfully Reperfused Acute Ischemic Stroke with Large-Vessel Occlusion

American Journal of Neuroradiology Feb 2025, DOI: 10.3174/ajnr.A8518

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HIR in Unsuccessfully Reperfused AIS-LVO Patients

American Journal of Neuroradiology Feb 2025, DOI: 10.3174/ajnr.A8518

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American Journal of Neuroradiology 2025 46 5

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