SpiroSonic: monitoring human lung function via acoustic sensing on commodity smartphones
SpiroSonic: monitoring human lung function via acoustic sensing on commodity smartphones
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DOI：
10.1145/3372224.3419209
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发表时间：
2020-09
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影响因子：
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通讯作者：
Xingzhe Song;Boyuan Yang;Ge Yang;Ruirong Chen;E. Forno;Wei Chen;Wei Gao
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作者：
Xingzhe Song;Boyuan Yang;Ge Yang;Ruirong Chen;E. Forno;Wei Chen;Wei Gao
呼吸道疾病一直是一个重大的公共卫生挑战。有效的疾病评估和监测需要每天进行肺功能测定，作为一种有效的肺功能检测方法，走出诊所。然而，由于现有的肺功能测定设备体积大、成本高，难以满足这一要求。在本文中，我们介绍了SpiroSonic，这是一种新的系统设计，使用商品智能手机在具有各种环境和人为因素的常规家庭环境中支持完整，准确但可靠的肺功能测定测试。SpiroSonic通过声学传感测量人类的胸壁运动，并根据临床验证的肺功能指数之间的相关性将这种运动解释为肺功能指数。我们将SpiroSonic实现为智能手机应用程序，并验证了SpiroSonic对健康人体的监测误差<3%。临床研究进一步表明，SpiroSonic在83名儿科患者中的监测误差达到5%-10%。鉴于诊所内肺功能测定的误差通常在5%左右，SpiroSonic可以可靠地用于诊所外的疾病跟踪和评估。
Respiratory diseases have been a significant public health challenge. Efficient disease evaluation and monitoring call for daily spirometry tests, as an effective way of pulmonary function testing, out of clinic. This requirement, however, is hard to be satisfied due to the large size and high costs of current spirometry equipments. In this paper, we present SpiroSonic, a new system design that uses commodity smartphones to support complete, accurate yet reliable spirometry tests in regular home settings with various environmental and human factors. SpiroSonic measures the humans' chest wall motion via acoustic sensing and interprets such motion into lung function indices, based on the clinically validated correlation between them. We implemented SpiroSonic as a smartphone app, and verified SpiroSonic's monitoring error over healthy humans as <3%. Clinical studies further show that SpiroSonic reaches 5%-10% monitoring error among 83 pediatric patients. Given that the error of in-clinic spirometry is usually around 5%, SpiroSonic can be reliably used for disease tracking and evaluation out of clinic.