International Stroke Perfusion Imaging Registry (INSPIRE)

The largest stroke perfusion imaging registry in the world

Introduction

INSPIRE is the world's largest stroke perfusion imaging registry, with >8000 stroke patients with advanced imaging and clinical data from Australian, Chinese, Canadian, Japanese and Indian centres.

Aims

  • Measure outcomes of advanced CT stroke imaging.
  • Assess whether the implementation of quality use of advanced CT imaging improves the safe and effective delivery of reperfusion treatment.
  • Develop a Quality Assurance Framework for advanced CT imaging in stroke with standardisation of the post-processing and reporting of advanced CT.

Leadership Team: INSPIRE is led by Professor Mark Parsons and Dr Longting Lin, supported by Dr Chushuang Chen as the global project manger.

Overview

Participating Countries 5+
Participating Centers 35+
Patients Data 8000+
Publications 20+

Data Summary

Publications

Sui Y, Chen W, Chen C, et al. CTP-Defined Large Core Is a Better Predictor of Poor Outcome for Endovascular Treatment Than ASPECTS-Defined Large Core. Stroke 2024; 55(5): 1227-34.

Lin L, Wang Y, Chen C, et al. Exploring ischemic core growth rate and endovascular therapy benefit in large core patients. J Cereb Blood Flow Metab 2024; 44(12): 1593-604.

Sun J, Werdiger F, Blair C, et al. Automatic segmentation of hemorrhagic transformation on follow-up non-contrast CT after acute ischemic stroke. Front Neuroinform 2024; 18: 1382630.

Wang P, Chen W, Chen C, et al. Association of Perfusion Lesion Variables With Functional Outcome in Patients With Mild Stroke and Large Vessel Occlusion Managed Medically. Neurology 2023; 100(6): e627-e38.

Lin L, Zhang H, Liu F, et al. Bridging Thrombolysis Before Endovascular Therapy in Stroke Patients With Faster Core Growth. Neurology 2023; 100(20): e2083-e92.

Sarraj A, Parsons M, Bivard A, et al. Endovascular Thrombectomy Versus Medical Management in Isolated M2 Occlusions: Pooled Patient-Level Analysis from the EXTEND-IA Trials, INSPIRE, and SELECT Studies. Ann Neurol 2022; 91(5): 629-39.

Garcia-Esperon C, Bivard A, Johns H, et al. Association of Endovascular Thrombectomy With Functional Outcome in Patients With Acute Stroke With a Large Ischemic Core. Neurology 2022; 99(13): e1345-e55.

Lin L, Zhang H, Chen C, et al. Stroke Patients With Faster Core Growth Have Greater Benefit From Endovascular Therapy. Stroke 2021; 52(12): 3998-4006.

Lin L, Yang J, Chen C, et al. Association of Collateral Status and Ischemic Core Growth in Patients With Acute Ischemic Stroke. Neurology 2021; 96(2): e161-e70.

Lin L, Chen C, Tian H, et al. Perfusion Computed Tomography Accurately Quantifies Collateral Flow After Acute Ischemic Stroke. Stroke 2020; 51(3): 1006-9.

Chen C, Parsons MW, Levi CR, et al. What Is the "Optimal" Target Mismatch Criteria for Acute Ischemic Stroke? Front Neurol 2020; 11: 590766.

Tian H, Parsons MW, Levi CR, et al. Influence of occlusion site and baseline ischemic core on outcome in patients with ischemic stroke. Neurology 2019; 92(23): e2626-e43.

Tian H, Chen C, Garcia-Esperon C, et al. Dynamic CT but Not Optimized Multiphase CT Angiography Accurately Identifies CT Perfusion Target Mismatch Ischemic Stroke Patients. Front Neurol 2019; 10: 1130.

Hong L, Cheng X, Lin L, et al. The blood pressure paradox in acute ischemic stroke. Ann Neurol 2019; 85(3): 331-9.

Chen C, Parsons MW, Levi CR, et al. Exploring the relationship between ischemic core volume and clinical outcomes after thrombectomy or thrombolysis. Neurology 2019; 93(3): e283-e92.

Chen C, Bivard A, Lin L, Levi CR, Spratt NJ, Parsons MW. Thresholds for infarction vary between gray matter and white matter in acute ischemic stroke: A CT perfusion study. J Cereb Blood Flow Metab 2019; 39(3): 536-46.

Lin L, Bivard A, Kleinig T, et al. Correction for Delay and Dispersion Results in More Accurate Cerebral Blood Flow Ischemic Core Measurement in Acute Stroke. Stroke 2018; 49(4): 924-30.

Lin L, Cheng X, Bivard A, Levi CR, Dong Q, Parsons MW. Quantifying reperfusion of the ischemic region on whole-brain computed tomography perfusion. J Cereb Blood Flow Metab 2017; 37(6): 2125-36.

Chen C, Parsons MW, Clapham M, et al. Influence of Penumbral Reperfusion on Clinical Outcome Depends on Baseline Ischemic Core Volume. Stroke 2017; 48(10): 2739-45.

Lin L, Bivard A, Krishnamurthy V, Levi CR, Parsons MW. Whole-Brain CT Perfusion to Quantify Acute Ischemic Penumbra and Core. Radiology 2016; 279(3): 876-87.

About INSPIRE

We welcome global research centers and hospitals to join the INSPIRE project, to jointly promote stroke perfusion imaging research.