Article ; Online: Prevalence of "Ghost Infarct Core" after Endovascular Thrombectomy.
AJNR. American journal of neuroradiology
2024 Volume 45, Issue 3, Page(s) 291–295
Abstract: Background and purpose: Baseline CTP sometimes overestimates the size of the infarct core ("ghost core" phenomenon). We investigated how often CTP overestimates infarct core compared with 24-hour imaging, and aimed to characterize the patient subgroup ... ...
Abstract | Background and purpose: Baseline CTP sometimes overestimates the size of the infarct core ("ghost core" phenomenon). We investigated how often CTP overestimates infarct core compared with 24-hour imaging, and aimed to characterize the patient subgroup in whom a ghost core is most likely to occur. Materials and methods: Data are from the randomized controlled ESCAPE-NA1 trial, in which patients with acute ischemic stroke undergoing endovascular treatment were randomized to intravenous nerinetide or placebo. Patients with available baseline CTP and 24-hour follow-up imaging were included in the analysis. Ghost infarct core was defined as CTP core volume minus 24-hour infarct volume > 10 mL). Clinical characteristics of patients with versus without ghost core were compared. Associations of ghost core and clinical characteristics were assessed by using multivariable logistic regression. Results: A total of 421 of 1105 patients (38.1%) were included in the analysis. Forty-seven (11.2%) had a ghost core > 10 mL, with a median ghost infarct volume of 13.4 mL (interquartile range 7.6-26.8). Young patient age, complete recanalization, short last known well to CT times, and possibly male sex were associated with ghost infarct core. Conclusions: CTP ghost core occurred in ∼1 of 10 patients, indicating that CTP frequently overestimates the infarct core size at baseline, particularly in young patients with complete recanalization and short ischemia duration. |
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MeSH term(s) | Humans ; Male ; Brain Ischemia/therapy ; Cerebral Infarction ; Ischemic Stroke ; Prevalence ; Stroke/therapy ; Thrombectomy/methods ; Tomography, X-Ray Computed/methods ; Treatment Outcome ; Female ; Randomized Controlled Trials as Topic |
Language | English |
Publishing date | 2024-03-07 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 603808-6 |
ISSN | 1936-959X ; 0195-6108 |
ISSN (online) | 1936-959X |
ISSN | 0195-6108 |
DOI | 10.3174/ajnr.A8113 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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