| Literature DB >> 28665168 |
Shuhei Okazaki1,2, Hiroshi Yamagami1, Takeshi Yoshimoto1, Yoshiaki Morita3, Haruko Yamamoto2, Kazunori Toyoda4, Masafumi Ihara1.
Abstract
Early detection of hemorrhagic transformation after reperfusion therapy is crucial in acute stroke treatment. Here, we evaluated the relationship between hemorrhagic transformation and post-reperfusion hyperperfusion using pulsed arterial spin labeling (ASL) perfusion MRI and 123I-iodoamphetamine single-photon emission-computed tomography. Patients who developed hemorrhagic transformation showed significantly higher cerebral blood flow in the affected lesion after thrombolysis and/or endovascular intervention. Focal hyperperfusion (ipsilateral to contralateral ratio >1.5) was associated with hemorrhagic transformation after reperfusion (odds ratio, 9.3; 95% confidence interval, 1.4-64.0). Our findings suggest that post-reperfusion hyperperfusion on ASL could represent a reliable marker of hemorrhagic transformation.Entities:
Keywords: Arterial spin labeling; acute stroke; intracranial/intracerebral hemorrhage; reperfusion; thrombolysis
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Year: 2017 PMID: 28665168 PMCID: PMC5584703 DOI: 10.1177/0271678X17718099
Source DB: PubMed Journal: J Cereb Blood Flow Metab ISSN: 0271-678X Impact factor: 6.200