![]() The feedback mechanism improved the overall image quality. The median assessment duration was <50 seconds in all patients, indicating the mHealth tool was efficient to use and could be integrated into the daily routine of patients.Ĭonclusions: We developed an mHealth tool that enables patients with SSc to acquire good-quality DU images and demonstrated that it is feasible to deploy such an app in this patient group. The usability questionnaire results showed that the majority of patients were satisfied with the tool, but could benefit from disease-specific adaptations. The feedback group showed significantly higher ( P<.001) CCS compared to the basic group. The average CCDR was 0.96 (191/199) in the feedback group and 0.86 (158/183) in the basic group. Results: A total of 21 patients were enrolled, of which 15 patients were included in the image quality analysis. We evaluated the feasibility of the mHealth tool by analyzing the usability feedback from questionnaires, user behavior and timings, and the overall quality of the wound images. The color checker detection ratio (CCDR) and color checker sharpness (CCS) were compared between the 2 groups. We randomly assigned patients with SSc and DU to the 2 device groups (basic and feedback) to self-document their DU at home over 8 weeks. ![]() We introduced 2 objective image quality parameters based on the sharpness and presence of the color checker to assess the quality of the image during acquisition and enable a quality feedback mechanism in an advanced version of the app. Methods: We developed an mHealth tool composed of a wound imaging and management app, a custom color reference sticker, and a smartphone holder. We aimed to define and validate objective measures for assessing the image quality, evaluate whether an automated feedback feature based on real-time assessment of image quality improves the overall quality of acquired wound images, and evaluate the feasibility of deploying the mHealth tool for home-based chronic wound self-monitoring by patients with SSc. Objective: Our goal was to develop a mobile health (mHealth) tool for the remote self-assessment of digital ulcers (DUs) in patients with systemic sclerosis (SSc). To date, no study has investigated the quality of remotely acquired wound images and whether these are suitable for wound self-management and telemedical interpretation of wound status. An essential step in wound documentation is the capture of wound images, but poor image quality can have a negative influence on the reliability of the assessment. Remote assessment and management of wounds using mobile and telehealth approaches can reduce this burden and improve patient outcomes. Mobile Health Systems Lab, Institute of Robotics and Intelligent Systemsĭepartment of Health Sciences and Technologyīackground: Travel to clinics for chronic wound management is burdensome to patients. JMIR Bioinformatics and Biotechnology 31 articles.JMIR Biomedical Engineering 66 articles.Journal of Participatory Medicine 76 articles.JMIR Perioperative Medicine 86 articles.JMIR Rehabilitation and Assistive Technologies 189 articles. ![]()
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