15 July 2025 : Clinical Research
Comparative Accuracy of Millimeter-Wave Radar and Polysomnography in Sleep Apnea Detection
Jinliang Wang BCDE 1,2, Zhiping Zhang B 2, Qiuli Wang A 2, Li Wen BC 3, Jiaqi Liu E 2, Changzhan Gu A 3, Peiyao Xiao F 1, Ziyang Fang F 1, Yikai Li F 1, Xianfeng Yao AG 4, Zhi Zhang AG 2*DOI: 10.12659/MSM.948079
Med Sci Monit 2025; 31:e948079
Table 4 Comparison of Millimeter-Wave Radar Sleep Monitor with other technologies in apnea detection.
| Feature/Technology | Millimeter-Wave Radar Sleep Monitor | Polysomnography (ApneaLink™ Air) | iMEMS-Based Apnea Detection | Other technologies |
|---|---|---|---|---|
| Technology type | Non-contact Radar Monitoring | Contact Polysomnography Device | iMEMS Sensors | Various (eg, Impedance-based) |
| Monitoring method | Monitors respiratory rate, chest contour fluctuations | Monitors nasal airflow, SpO, body position | Monitors airflow and pressure changes | Varies (eg, airflow, thoracic movements) |
| Non-contact monitoring | Yes | No | Yes | Varies |
| Real-world application | Suitable for home and hospital use | Primarily used in hospital labs | Suitable for wearable applications | Varies |
| Sensitivity | 92.7% | ~90% | ~85% | Varies |
| Specificity | 84.6% | ~85% | ~80% | Varies |
| Accuracy | 91.18% | ~90% | ~85% | Varies |
| Ease of use | Easy to use, minimal setup | Requires professional setup | User-friendly, wearable | Varies |
| Cost | Moderate | High | Low to moderate | Varies |
| Limitations | Limited to certain OSAHS severities | Requires specialized setting | May have reduced accuracy in complex cases | Varies |
| iMEMS – integrated Micro-Electro-Mechanical Systems; OSAHS – Obstructive Sleep Apnea-Hypopnea Syndrome. | ||||