中国卒中杂志2017，Vol.12Issue(12)：1104-1110,7.DOI:10.3969/j.issn.1673-5765.2017.12.007
初次培训后ASPECT评分一致性和准确性的研究
Study on Consistency and Accuracy of ASPECTS after the Initial Training
邓国莉 1周龙江 2赵义 1陈斌 1王礼同 3彭伟 1王苇2
作者信息
- 1. 225009 扬州 扬州大学附属医院影像科
- 2. 仪征市人民医院影像科
- 3. 扬州大学附属医院神经科
- 折叠
摘要
Abstract
Objective To evaluate the consistency and accuracy of Alberta Stroke Program Early Computed Tomography Score (ASPECTS) after the initial training, so as to lay a foundation for the clinical applications and propagations. Methods Brief clinical materials of 30 patients with suspected acute ischemic stroke were collected within 6 hours after onset. A total of 28 employees (21 from imaging department and 7 from neurology department) with different professional working-year (18 people with 10 years or more as senior employees, and the other 10 with less than 10 years as junior employees) were selected to make ASPECTS for all the patients' first admission noncontrast CT (NCCT) after their initial training. The ASPECTS was taken as a categorical variable. Its consistency was evaluated by Fleiss Kappa statistics, and its accuracy was assessed by the correct rate. Results The overall ASPECTS Kappa value was 0.102, and 95% confidence interval was (0.094, 0.110); the raters Kappa value and 95% confidence interval from imaging department was 0.116 (0.105, 0.128); the raters Kappa value and 95% confidence interval from neurology department was 0.067 (0.034, 0.099). Accuracy: the correct rate of 28 raters was 15.595% after 840 case-time ASPECTS in overall. With the method of dichotomy (ASPECTS ≥6 and <6) the correct rate was 73.571%. Statistics result of chi-square test for the two methods had significant difference (P<0.05). The dichotomy correct rate of imaging department and neurology department were 74.92% and 69.523% respectively, which had no significant difference. The correct rate of senior employees and junior ones were 74.814% and 61.665% respectively, which had no significant difference. Conclusion The consistency and the accuracy of ASPECTS were relatively low after the initial training, which indicated that more times and strict trainings were very essential and important and Dichotomy (ASPECTS ≥6 or ASPECTS <6) had a relatively good clinical application prospection.关键词
缺血性卒中/Alberta卒中项目早期CT评分/正确率/一致性Key words
Ischemic stroke/Alberta Stroke Program Early CT Score/Accuracy/Consistency引用本文复制引用
邓国莉,周龙江,赵义,陈斌,王礼同,彭伟,王苇..初次培训后ASPECT评分一致性和准确性的研究[J].中国卒中杂志,2017,12(12):1104-1110,7.
