Browsing by Author "Guedes, Rui"
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- Combined image-based approach for monitoring the adherence to inhaled medicationsPublication . Vieira-Marques, Pedro; Teixeira, João Fonseca; Valente, José; Pinho, Bernardo; Guedes, Rui; Almeida, Rute; Jácome, Cristina; Pereira, Ana; Jacinto, Tiago; Amaral, Rita; Gonçalves, Ivânia; Sousa, Ana Sá; Couto, Mariana; Magalhães, Manuel; Bordalo, Diana; Silva, Luís Nogueira; Fonseca, J. AlmeidaThe adherence to inhaled controller medications is of critical importance to achieve good clinical results in patients with chronic respiratory diseases. To objectively verify the adherence, a detection tool was previously developed and integrated in the mobile application InspirerMundi, based on image processing methods. In this work, a new approach for enhanced adherence verification was developed. In a first phase template matching is employed to confirm the inhaler positioning and to locate the dose counter. In a second phase Google ML Kit framework is used for the detection of each numerical dose in the dose counter. The proposed approach was validated through a new detection tool pilot implementation, using a set of images collected by patients using the application in their daily life. Performance of each of the two phases was evaluated for a set of commonly used inhaler devices. Promising results were achieved showing the potential of mobile embedded sensors without the need for external devices.
- InspirerMundi—remote monitoring of inhaled medication adherence through objective verification based on combined image processing techniquesPublication . Pedro, Vieira-Marques; Rute, Almeida; Teixeira, João F.; Valente, José; Jácome, Cristina; Cachim, Afonso; Guedes, Rui; Pereira, Ana; Jacinto, Tiago; Fonseca, João A.The adherence to inhaled controller medications is of critical importance for achieving good clinical results in patients with chronic respiratory diseases. Self-management strategies can result in improved health outcomes and reduce unscheduled care and improve disease control. However, adherence assessment suffers from difficulties on attaining a high grade of trustworthiness given that patient self-reports of high-adherence rates are known to be unreliable. Objective Aiming to increase patient adherence to medication and allow for remote monitoring by health professionals, a mobile gamified application was developed where a therapeutic plan provides insight for creating a patient-oriented self-management system. To allow a reliable adherence measurement, the application includes a novel approach for objective verification of inhaler usage based on real-time video capture of the inhaler's dosage counters. This approach uses template matching image processing techniques, an off-the-shelf machine learning framework, and was developed to be reusable within other applications. The proposed approach was validated by 24 participants with a set of 12 inhalers models. Results Performed tests resulted in the correct value identification for the dosage counter in 79% of the registration events with all inhalers and over 90% for the three most widely used inhalers in Portugal. These results show the potential of exploring mobile-embedded capabilities for acquiring additional evidence regarding inhaler adherence. This system helps to bridge the gap between the patient and the health professional. By empowering the first with a tool for disease self-management and medication adherence and providing the later with additional relevant data, it paves the way to a better-informed disease management decision.
- mINSPIRERS – Estudo da exequibilidade de uma aplicação móvel para medição e melhoria da adesão à medicação inalada de controlo em adolescentes e adultos com asma persistente. Protocolo de um estudo observacional multicêntricoPublication . Jácome, Cristina; Guedes, Rui; Almeida, Rute; Teixeira, João Fonseca; Pinho, Bernardo; Vieira -Marques, Pedro; Vilaça, Rita; Fernandes, José; Ferreira, Ana; Couto, Mariana; Jacinto, Tiago; Pereira, Altamiro da Costa; Fonseca, João AlmeidaA má adesão à medicação inalada é um dos principais fatores que limita a melhoria clínica nos doentes com asma. Desta forma, é fundamental o desenvolvimento de ferramentas de monitorização de adesão à medicação objetivas e de fácil disseminação e a promoção de estratégias de adesão à medicação facilmente integráveis no dia a dia dos doentes. Os smartphones e jogos em comunidade virtual podem ter um papel relevante para a adoção de comportamentos promotores da saúde. Com bases nestes pressupostos foi desenvolvida a aplicação móvel InspirerMundi, com as suas componentes de monitorização, jogo e suporte por pares, para monitorizar e melhorar a adesão à medicação inalada de controlo em adolescentes e adultos com asma. O objetivo do estudo mINSPIRERS é avaliar a exequibilidade desta aplicação móvel. Estudo observacional prospetivo, multicêntrico composto por uma visita inicial e por três entrevistas telefónicas (após 1 semana, 1 mês e 4 meses) em cerca de 25 centros (Imunoalergologia, Pediatria, Pneumologia) de cuidados secundários em Portugal. Serão incluídos um mínimo de 20 adolescentes e 20 adultos com asma persistente. As principais dimensões avaliadas serão: adesão à medicação, crenças sobre a medicação, satisfação com o inalador, controlo da asma, exequibilidade técnica e padrões de utilização da aplicação, e a satisfação com a aplicação. A aplicação InspirerMundi pretende transformar a adesão à medicação inalada numa experiência positiva através de elementos de gamificação e suporte social, permitindo simultaneamente a monitorização verificada da adesão ao tratamento. É expectável que os resultados deste estudo contribuam não só para o aperfeiçoamento da aplicação InspirerMundi, mas também para informar o desenvolvimento de soluções mHealth e intervenções de melhoria da adesão à medicação em doentes com asma.
- Quality assessment and feedback of Smart Device Microphone Spirometry executed by childrenPublication . Almeida, Rute; Pinho, Bernardo; Jácome, Cristina; Teixeira, Joao Fonseca; Amaral, Rita; Lopes, Filipa; Jacinto, Tiago; Guedes, Rui; Pereira, Mariana; Goncalves, Ivania; Fonseca, Joao AlmeidaSmart device microphone spirometry, based on the audio recording of forced expiratory maneuver (FEM), can be a simple, ubiquitous and easy tool for patients to self-monitor their asthma. Automatic validity assessment is crucial to guarantee that the global effort of the FEM fulfil the admissible minimum or if the maneuver needs to be repeated. In this work an automatic method to classify the sounds from FEM with respect to global effort was developed and evaluated using data from 54 children (5-10 years). The method proposed was able to correctly classify the microphone spirometry with respect to admissible minimum of effort with an accuracy of 86% (specificity 87% and sensitivity 86%). This method can be used to provide immediate feedback of the correct execution of the maneuver, improving the clinical value and utility of this self-monitoring tool.
- Reproducibility of the Vivatmopro measurements for exhaled nitric oxide valuesPublication . Amaral, Rita; Jácome, Cristina; Almeida, Rute; Sá-Sousa, Ana; Pinho, Bernardo; Guedes, Rui; Jacinto, Tiago; Fonseca, JoãoPortable monitoring devices allow fraction exhaled nitric oxide (FeNO) measurements outside clinical settings. However, the reproducibility of the new portable device Vivatmo pro is not yet fully established. In this study, we aimed to assess the reproducibility of this device for FeNO measurements.