Using ViSi Mobile Monitoring for Analyzing Posture of Hospitalized Patients

ViSi Mobile is a wearable device used in inpatient settings to continuously monitor patient posture during hospitalization. Analysis of ViSi data can enable researchers and healthcare providers to quantify an individual patient's movement and investigate collective patterns of many patients. However, erroneous values can exist in routinely-collected ViSi data because these data may accrue unexpected errors during data collection or storage. I will discuss our study of identifying the types of errors that can occur and understanding how they arise. I will also describe our methodology to improve the quality of routinely-collected ViSi data for reliable inference, which can have broad application to other monitoring systems in hospital use.