用自动化模型同时完成睡眠分期与纺锤波检测,结果与专家研究一致。
From Sleep Staging to Spindle Detection: A Case Study on End-to-End Automated Sleep Analysis
- 整合睡眠分期与纺锤波检测模型,实现端到端自动分析。
- 快速复现双相情感障碍患者快纺锤波密度差异等关键发现。
- 适合需要大规模睡眠研究的团队使用。
睡眠分析的自动化,包括宏观结构(睡眠分期)和微观结构(如睡眠纺锤波)元素,有望推动大规模睡眠研究并减少不同评估者之间的差异。尽管睡眠分期和纺锤波检测各自已有研究,但多步骤自动分析的可行性尚不明确。本案例研究评估了使用经过验证的机器学习模型——睡眠分期模型 RobustSleepNet 与纺锤波检测模型 SUMOv2——进行全自动化分析的可行性,并对比了其在双相情感障碍研究中的结果。自动化分析在定性上重现了专家研究的关键发现,包括双相患者与健康对照组在快纺锤波密度上的显著差异,且仅需几分钟即可完成此前需数月的手动工作。虽然定量结果存在差异,可能源于专家评分者或评分者与模型间的偏差,但各模型在睡眠分期和纺锤波检测上的表现均达到或超过人与人之间的一致性水平。结果表明,全自动方法具有推动大规模睡眠研究的潜力。我们通过开源代码并推出隐私保护平台 SomnoBot,提供分析工具的公开访问。
原文摘要 · Abstract (English)
Automation of sleep analysis, including both macrostructural (sleep stages) and microstructural (e.g., sleep spindles) elements, promises to enable large-scale sleep studies and to reduce variance due to inter-rater incongruencies. While individual steps, such as sleep staging and spindle detection, have been studied separately, the feasibility of automating multi-step sleep analysis remains unclear. In this case study, we evaluate whether a fully automated analysis using validated machine learning models for sleep staging (RobustSleepNet) and subsequent spindle detection (SUMOv2) can replicate findings from an expert-based study of bipolar disorder. The automated analysis qualitatively reproduced key findings from the expert-based study, including significant differences in fast spindle densities between bipolar patients and healthy controls, accomplishing in minutes what previously took months to complete manually. While the results of the automated analysis differed quantitatively from the expert-based study, possibly due to biases between expert raters or between raters and the models, the models individually performed at or above inter-rater agreement for both sleep staging and spindle detection. Our results demonstrate that fully automated approaches have the potential to facilitate large-scale sleep research. We are providing public access to the tools used in our automated analysis by sharing our code and introducing SomnoBot, a privacy-preserving sleep analysis platform.
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