Core Insights - The research team from the University of Science and Technology of China has developed a non-contact, high-precision method for diagnosing atrial fibrillation (AF) using millimeter-wave radar technology, marking a significant advancement in the field [1][2] - Atrial fibrillation is the most common arrhythmia, with a global incidence that is rapidly increasing, and the overall prevalence in the adult population of China is 1.6% [1] - Early diagnosis and timely intervention are crucial for managing AF, as the disease can progress from occasional episodes to persistent and eventually permanent forms, leading to severe complications such as stroke and heart failure [1] Group 1: Research Methodology - The research team established a novel network architecture based on knowledge transfer, linking cardiac electrical activity with mechanical motion, utilizing ECG signal features to assist neural networks in identifying abnormal mechanical fluctuations specific to AF [2] - The system achieved non-contact, operator-free, and wearable-free detection, demonstrating diagnostic performance close to that of traditional ECG in large clinical validations [2] Group 2: Clinical Validation - The system was tested on 6,258 subjects, achieving a sensitivity of 0.844 and a specificity of 0.995 [2] - In a daily active monitoring study of 27 high-risk AF patients, the system successfully identified 2 cases of AF prior to clinical confirmation [2]