Spirosmart App Android

SpiroSmart: A Mobile App for Lung Function Testing

Lung function testing is an important tool for diagnosing and monitoring respiratory diseases such as asthma, chronic obstructive pulmonary disease (COPD), and cystic fibrosis. However, conventional lung function testing devices, such as spirometers, are expensive, bulky, and require calibration and maintenance. Moreover, they are not widely available in low-resource settings or for home use. This limits the access and frequency of lung function testing for many patients who need it.

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Fortunately, a new mobile app called SpiroSmart aims to overcome these challenges by using the smartphone's microphone to measure lung function. SpiroSmart is a research project developed by the University of Washington in collaboration with the University of Texas at Dallas and the University of Rochester. SpiroSmart uses a novel algorithm that analyzes the sound waves produced by the user's breath as they exhale into the phone. The app can estimate several lung function parameters, such as peak expiratory flow (PEF), forced expiratory volume in one second (FEV1), and forced vital capacity (FVC). These parameters can help diagnose and monitor respiratory conditions and assess the effectiveness of treatments.

SpiroSmart has been tested on more than 4,000 subjects in various settings, including clinical trials, field studies, and home monitoring. The results have shown that SpiroSmart can achieve an accuracy comparable to clinical spirometers, with an error rate within the acceptable range of 5 to 7 percent set by the American Thoracic Society . SpiroSmart has also been validated for different age groups, ethnicities, and languages .

One of the advantages of SpiroSmart is that it does not require any additional hardware or accessories, such as tubes or turbines, to perform lung function testing. This makes it more convenient, portable, and affordable than conventional spirometers. Another advantage is that SpiroSmart can be integrated with other mobile apps and services for telemedicine, remote patient monitoring, and clinical trials. For example, SpiroCall is a service that allows users to perform lung function testing by calling a toll-free number and using any phone, including landlines and feature phones . SpiroCloud is a cloud-based platform that stores and analyzes lung function data from SpiroSmart and SpiroCall users .

SpiroSmart is not yet commercially available or FDA-approved, but the developers are working on obtaining regulatory approval and partnering with health care providers and organizations to deploy the app in various settings. SpiroSmart has the potential to revolutionize lung function testing by making it more accessible, convenient, and affordable for millions of people around the world who suffer from respiratory diseases.

References:

• Patel S., et al. (2012). "SpiroSmart: Using a Microphone to Measure Lung Function on a Mobile Phone." Proceedings of the 2012 ACM Conference on Ubiquitous Computing.

• Rajalakshmi R., et al. (2015). "Multi-Ethnic Cross-Cultural Evaluation of a Mobile Phone-Based System for Measuring Lung Function." Proceedings of the 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing.

• Goel M., et al. (2016). "SpiroCall: Measuring Lung Function over a Phone Call." Proceedings of the 2016 CHI Conference on Human Factors in Computing Systems.

• Larson E., et al. (2017). "SpiroCloud: A Web-Based Platform for Real-Time Lung Function Analysis." Proceedings of the 2017 CHI Conference Extended Abstracts on Human Factors in Computing Systems.