Abstract

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Title:: Hemodynamic evaluation and diagnostic value of SWI combined with ASL in acute ischemic stroke

Author(s):: DING Zhaojun1; LIU Wengang1; HUANG Junhao1; CAO Rui2; LI Zhixin2; 1. Department of Radiology, Yongchuan Hospital, Chongqing Medical University, Chongqing 402160, China 2. Department of Radiology, Daping Hospital, Army Medical University, Chongqing 400042, China

Keywords:: Keywords: acute ischemic stroke susceptibility-weighted imaging hemodynamics prognosis

Abstract:: Abstract: Objective To analyze the diagnostic utility of combining susceptibility-weighted imaging (SWI) with arterial spin labeling (ASL) in patients with acute ischemic stroke (AIS). Methods Fifty AIS patients who admitted to Yongchuan Hospital, Chongqing Medical University from July 2020 to July 2021 were selected. Scans were performed using a 3.0T MRI scanner, including sequences such as FLAIR, DWI, 3D-TOF-MRA, 3D-ASL, and SWI. The perfusion status of the infarction core, the grading of draining veins around the infarction core, compensation by collateral circulation, the occurrence of hemorrhagic transformation, and prognosis were assessed. Results The grading of draining veins around the infarction core was significantly correlated with NIHSS scores (r=0.869, P<0.05) and prognosis (r=0.825, P<0.05). In addition, significant correlations were found between the perfusion status of the infarction core and the occurrence of hemorrhagic transformation (r=0.873, P<0.05), compensation by collateral circulation and prognosis (r=0.883, P<0.05). Conclusion The combination of SWI and ASL provides accurate indications of the hemodynamic conditions around the infarction core in AIS patients, and it can accurately assess the prognosis of AIS patients, contributing valuable information for clinical diagnosis and the selection of treatment strategies.