Radiology:Alberta中风程序早期CT评分自动计算的可行性及重复性

2019-07-13 shaosai MedSci原创

本研究旨在比较自动软件与神经放射学医师评价急性脑卒中的ASPECTS的差异。

背景

Alberta脑卒中程序早期CT评分(APECTS)评价是一种评价颅脑CT急性脑卒中早期局灶性低密度的定量方法。然而,该方法的组间一致性仅为一般。

本研究旨在比较自动软件与神经放射学医师评价急性脑卒中的ASPECTS的差异。

本研究为回顾性研究,ASPECTS一致性定义为2名神经放射科医生基于大脑中动脉闭塞患者与怀疑有脑卒中而无大血管闭塞患者基线非增强CT而获得的一致同意。收集基线与随访CT评价阅片一致性。6周后,由相同2位放射科医生再次仅利用基线CT进行ASPECTS评价。此外,利用RAPID ASPECTS软件对基线CT进行评价ASPECTS。利用加权κ统计进行比较。

结果为,本研究共收集了100例大脑中动脉闭塞患者和52例怀疑有脑卒中且无大血管闭塞患者的CT图像。对ASPECTS评分,2位神经放射科医生的一致性一般(κ = 0.57 、κ = 0.56)。软件分析显示在发病1小时内与一致性共识具有良好的一致性 (κ = 0.9)。软件分析显示在发病1小时内与一致性共识具有良好的一致性(κ = 0.78),在发病时间窗超过4小时后一致性更高(κ = 0.92)。在时间窗超过4小时之前,神经放射科医生并不能够达到如此高的一致性(κ = 0.83、 κ = 0.76)。

本研究表明,对于大脑中动脉性急性脑卒中患者,自动软件评价的ASPECTS分要优于神经放射科医生。

原始出处:

Maegerlein C, Fischer J, M?nch S,et al.Automated Calculation of the Alberta Stroke Program Early CT Score: Feasibility and Reliability.Radiology.DOI:10.1148/radiol.2019181228

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    2020-03-11 珙桐
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    2019-07-14 guging

    中风是俗称,应该称为缺血性卒中吧

    0