Jun Zheng1, Zhiyuan Yu1, Rui Guo1, Hao Li1, Chao You1, Lu Ma2. 1. Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China. 2. Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China. Electronic address: alex80350305@163.com.
Abstract
OBJECTIVE: Hematoma expansion is related to unfavorable prognosis in intracerebral hemorrhage (ICH). The black hole sign is a novel marker on non-contrast computed tomography for predicting hematoma expansion. However, its predictive values are different in previous studies. Thus, this meta-analysis was conducted to evaluate the predictive significance of the black hole sign for hematoma expansion in ICH. METHODS: A systematic literature search was performed. Original researches on the association between the black hole sign and hematoma expansion in ICH were included. Sensitivity and specificity were pooled to assess the predictive accuracy. Summary receiver operating characteristics curve (SROC) was developed. Deeks' funnel plot asymmetry test was used to assess the publication bias. RESULTS: Five studies with a total of 1495 patients were included in this study. The pooled sensitivity and specificity of the black hole sign for predicting hematoma expansion were 0.30 and 0.91, respectively. The area under the curve was 0.78 in SROC curve. There was no significant publication bias. CONCLUSIONS: This meta-analysis shows that the black hole sign is a helpful imaging marker for predicting hematoma expansion in ICH. Although the black hole sign has a relatively low sensitivity, its specificity is relatively high.
OBJECTIVE:Hematoma expansion is related to unfavorable prognosis in intracerebral hemorrhage (ICH). The black hole sign is a novel marker on non-contrast computed tomography for predicting hematoma expansion. However, its predictive values are different in previous studies. Thus, this meta-analysis was conducted to evaluate the predictive significance of the black hole sign for hematoma expansion in ICH. METHODS: A systematic literature search was performed. Original researches on the association between the black hole sign and hematoma expansion in ICH were included. Sensitivity and specificity were pooled to assess the predictive accuracy. Summary receiver operating characteristics curve (SROC) was developed. Deeks' funnel plot asymmetry test was used to assess the publication bias. RESULTS: Five studies with a total of 1495 patients were included in this study. The pooled sensitivity and specificity of the black hole sign for predicting hematoma expansion were 0.30 and 0.91, respectively. The area under the curve was 0.78 in SROC curve. There was no significant publication bias. CONCLUSIONS: This meta-analysis shows that the black hole sign is a helpful imaging marker for predicting hematoma expansion in ICH. Although the black hole sign has a relatively low sensitivity, its specificity is relatively high.
Authors: Zhe Kang Law; Azlinawati Ali; Kailash Krishnan; Adam Bischoff; Jason P Appleton; Polly Scutt; Lisa Woodhouse; Stefan Pszczolkowski; Lesley A Cala; Robert A Dineen; Timothy J England; Serefnur Ozturk; Christine Roffe; Daniel Bereczki; Alfonso Ciccone; Hanne Christensen; Christian Ovesen; Philip M Bath; Nikola Sprigg Journal: Stroke Date: 2019-11-18 Impact factor: 7.914