Kok Christopher, Jahmunah V, Oh Shu Lih, Zhou Xujuan, Gururajan Raj, Tao Xiaohui, Cheong Kang Hao, Gururajan Rashmi, Molinari Filippo, Acharya U Rajendra
School of Engineering, Ngee Ann Polytechnic, Singapore.
School of Management and Enterprise University of Southern Queensland Springfield, Australia.
Comput Biol Med. 2020 Dec;127:103957. doi: 10.1016/j.compbiomed.2020.103957. Epub 2020 Aug 12.
Multiple organ failure is the trademark of sepsis. Sepsis occurs when the body's reaction to infection causes injury to its tissues and organs. As a consequence, fluid builds up in the tissues causing organ failure and leading to septic shock eventually. Some symptoms of sepsis include fever, arrhythmias, blood vessel leaks, impaired clotting, and generalised inflammation. In order to address the limitations in current diagnosis, we have proposed a cost-effective automated diagnostic tool in this study. A deep temporal convolution network has been developed for the prediction of sepsis. Septic data was fed to the model and a high accuracy and area under ROC curve (AUROC) of 98.8% and 98.0% were achieved respectively, for per time-step metrics. A relatively high accuracy and AUROC of 95.5% and 91.0% were also achieved respectively, for per-patient metrics. This is a novel study in that it has investigated per time-step metrics, compared to other studies which investigated per-patient metrics. Our model has also been evaluated by three validation methods. Thus, the recommended model is robust with high accuracy and precision and has the potential to be used as a tool for the prediction of sepsis in hospitals.
多器官功能衰竭是脓毒症的标志。当身体对感染的反应导致其组织和器官受损时,就会发生脓毒症。结果,组织中会积液,导致器官功能衰竭并最终导致感染性休克。脓毒症的一些症状包括发烧、心律失常、血管渗漏、凝血功能受损和全身性炎症。为了解决当前诊断中的局限性,我们在本研究中提出了一种经济高效的自动化诊断工具。已开发出一种深度时间卷积网络用于预测脓毒症。将脓毒症数据输入模型,对于每个时间步长指标,分别实现了98.8%的高精度和98.0%的ROC曲线下面积(AUROC)。对于每位患者的指标,也分别实现了相对较高的95.5%的准确率和91.0%的AUROC。这是一项新颖的研究,因为与其他研究每位患者指标的研究相比,它研究了每个时间步长指标。我们的模型还通过三种验证方法进行了评估。因此,推荐的模型稳健,具有高精度和高精准度,有潜力作为医院中脓毒症预测的工具。