开发和外部验证一种预测模型,用于从轻度到中度或严重的COVID-19形式的过渡
Maéva Zysman1,2,3, Julien Asselineau4, Olivier Saut5,6
1CHU Bordeaux, 33600, Pessac, France. maeva.zysman@chu-bordeaux.fr.
预测COVID-19恶化是可能使用临床数据和CT扫描. 定量CT扫描分析和放射学显著提高了轻度COVID-19患者的预测准确度,这些患者可能会患上危急疾病.
科学领域:
- 医疗成像医学成像
- 肺部病理学 肺部病理学
- 传染性疾病 传染性疾病
背景情况:
- 尽管接种疫苗广泛,但一小部分轻度COVID-19 (冠状病毒疾病2019) 患者可能会进展到中度,关键或致命的形式.
- 胸部CT (计算机断层扫描) 扫描对于评估肺部感染传播和检测COVID-19患者并发症至关重要.
研究的目的:
- 开发和验证一种预测模型,用于识别患有轻度COVID-19且患病恶化高风险的患者.
- 该模型整合了简单的临床,生物和CT衍生数据 (定性,定量和放射性特征).
主要方法:
- 一项多中心研究,涉及四家法国医院进行培训和内部验证,以及两家独立医院进行外部验证.
- 收集的数据包括临床参数 (年龄,性别,并发症,症状) 和生物标志物 (淋巴细胞,CRP).
- CT扫描数据,包括定性评估,定量分析和放射学,从轻度COVID-19病例的初始扫描中得到利用.
主要成果:
- 定性CT分析与临床和生物数据相结合,预测疾病恶化,c指数为0.70.
- 整合CT扫描量化可以将预测性能提高到0.73.
- 放射学分析进一步提高了预测准确度,达到0.77的c指数,在验证队列中得到一致的结果.
结论:
- 定量CT分析和放射学在与临床和生物参数相结合时,在预测COVID-19进展方面明显优于定性CT分析.
- 这些基于CT的先进模型可以帮助优化患者管理,资源分配和新型治疗干预措施的查.
更多相关视频
12:21A Mouse Model for the Transition of Streptococcus pneumoniae from Colonizer to Pathogen upon Viral Co-Infection Recapitulates Age-Exacerbated Illness
Published on: September 28, 2022
12:18A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment
Published on: January 11, 2020
相关概念视频
Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
Medical History
COPD: Pathogenesis and Clinical Features
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
Prediction Intervals
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
Classification of Illness
An illness is a response to a disease in which the person's level of functioning is changed compared with a previous level. The general classification of illness includes acute and chronic.
Acute illness is severe...
Pneumonia III: Complications and Assessment
Data Validation
Nursing assessment guides are generally based on holistic models rather than medical...
