Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China.
Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China.
World Neurosurg. 2019 Jun;126:e694-e698. doi: 10.1016/j.wneu.2019.02.125. Epub 2019 Mar 4.
The BAT score is a novel prediction score of hematoma expansion based on noncontrast computed tomography (CT) and consists of the blend sign, hypodensities, and time interval from onset to CT. This study aimed to compare the BAT score and the spot sign on CT angiography in a cohort of patients with spontaneous intracerebral hemorrhage.
Eligible patients with spontaneous intracerebral hemorrhage were analyzed retrospectively. The BAT score and the spot sign were assessed according to the criteria described in previous studies. Receiver operating curve analysis was used to assess the performance of the BAT score and the spot sign in hematoma expansion prediction.
In 225 included patients, 34 (15.1%) had a BAT score ≥3. The spot sign was shown in 68 (30.2%) patients. Hematoma expansion was identified in 56 (24.9%) patients. In multivariate analysis, both BAT score ≥3 and presence of spot sign were independently correlated with hematoma expansion. BAT score ≥3 had 0.41 sensitivity and 0.93 specificity, and spot sign had 0.64 sensitivity and 0.81 specificity. The area under the curve of BAT score ≥3 and area under the curve of spot sign were 0.673 and 0.727, respectively (P = 0.386).
The BAT score based on noncontrast CT is a good predictor of hematoma expansion. When CT angiography spot sign is unobtainable, the BAT score can be used to predict hematoma expansion.
BAT 评分是一种基于非增强 CT 的血肿扩大新预测评分，由融合征、低密区和发病至 CT 的时间间隔组成。本研究旨在比较自发性脑出血患者队列中 BAT 评分和 CT 血管造影上的斑点征。
回顾性分析符合条件的自发性脑出血患者。根据先前研究中描述的标准评估 BAT 评分和斑点征。使用接收者操作曲线分析评估 BAT 评分和斑点征在血肿扩大预测中的性能。
在 225 例纳入患者中，34 例（15.1%）BAT 评分≥3。68 例（30.2%）患者出现斑点征。56 例（24.9%）患者血肿扩大。多变量分析显示，BAT 评分≥3 和斑点征存在均与血肿扩大独立相关。BAT 评分≥3 的灵敏度为 0.41，特异性为 0.93，斑点征的灵敏度为 0.64，特异性为 0.81。BAT 评分≥3 的曲线下面积和斑点征的曲线下面积分别为 0.673 和 0.727（P=0.386）。
基于非增强 CT 的 BAT 评分是血肿扩大的良好预测指标。当 CT 血管造影斑点征不可用时，可以使用 BAT 评分来预测血肿扩大。
