RESUMO
OBJECTIVE: This article reports results from a systematic literature review related to the evaluation of data visualizations and visual analytics technologies within the health informatics domain. The review aims to (1) characterize the variety of evaluation methods used within the health informatics community and (2) identify best practices. METHODS: A systematic literature review was conducted following PRISMA guidelines. PubMed searches were conducted in February 2017 using search terms representing key concepts of interest: health care settings, visualization, and evaluation. References were also screened for eligibility. Data were extracted from included studies and analyzed using a PICOS framework: Participants, Interventions, Comparators, Outcomes, and Study Design. RESULTS: After screening, 76 publications met the review criteria. Publications varied across all PICOS dimensions. The most common audience was healthcare providers (n = 43), and the most common data gathering methods were direct observation (n = 30) and surveys (n = 27). About half of the publications focused on static, concentrated views of data with visuals (n = 36). Evaluations were heterogeneous regarding setting and measurements used. DISCUSSION: When evaluating data visualizations and visual analytics technologies, a variety of approaches have been used. Usability measures were used most often in early (prototype) implementations, whereas clinical outcomes were most common in evaluations of operationally-deployed systems. These findings suggest opportunities for both (1) expanding evaluation practices, and (2) innovation with respect to evaluation methods for data visualizations and visual analytics technologies across health settings. CONCLUSION: Evaluation approaches are varied. New studies should adopt commonly reported metrics, context-appropriate study designs, and phased evaluation strategies.
Assuntos
Visualização de Dados , Estudos de Avaliação como Assunto , Aplicações da Informática Médica , Armazenamento e Recuperação da InformaçãoRESUMO
The objective of this investigation was to evaluate gas exchange and cardiopulmonary functional behavior in patients with pulmonary hypertension (PH) before, during and after the change to a prone position. Thirty patients with PH and alterations in gas exchange were included in the study. Gas exchange measurements were performed in four stages: at the baseline supine position and after 30, 120 and 240 minutes in prone position. Also, the patients were evaluated by the six minutes walking test (6MWT) after 30 days in prone position during night's sleep. After four hours in prone position, all patients showed an increase of PaO2 and arterial saturation of oxygen (SaO2), with a decrease of intrapulmonary shunts, improving the gas exchange and therefore the physiological demand imposed by exercise in patients with PH.
Assuntos
Tolerância ao Exercício , Hipertensão Pulmonar/metabolismo , Hipertensão Pulmonar/fisiopatologia , Decúbito Ventral , Troca Gasosa Pulmonar , Feminino , Humanos , Estudos Longitudinais , Masculino , Estudos Prospectivos , Adulto JovemRESUMO
El objetivo del estudio fue evaluar el intercambio gaseoso y el comportamiento funcional cardiorrespiratorio en pacientes con hipertensión pulmonar (HTP) antes, durante y después del cambio de posición a decúbito prono. Treinta pacientes con HTP y alteraciones en el intercambio gaseoso fueron incluidos en el estudio. Las variables de intercambio gaseoso se evaluaron en decúbito supino para obtener los valores basales y en decúbito prono a los 30, 120 y 240 min. Así mismo, se sometieron al test marcha 6 minutos (6MWT) previo y posterior a 30 días de sueño nocturno en prono. Después de cuatro horas, todos los pacientes presentaron un incremento de la PaO2 y en la saturación arterial de oxígeno (SaO2), con disminución en los cortocircuitos intrapulmonares, mejorando el intercambio gaseoso y por consiguiente de la demanda fisiológica impuesta por el ejercicio en pacientes con HTP.
The objective of this investigation was to evaluate gas exchange and cardiopulmonary functional behavior in patients with pulmonary hypertension (PH) before, during and after the change to a prone position. Thirty patients with PH and alterations in gas exchange were included in the study. Gas exchange measurements were performed in four stages: at the baseline supine position and after 30, 120 and 240 minutes in prone position. Also, the patients were evaluated by the six minutes walking test (6MWT) after 30 days in prone position during night’s sleep. After four hours in prone position, all patients showed an increase of PaO2 and arterial saturation of oxygen (SaO2), with a decrease of intrapulmonary shunts, improving the gas exchange and therefore the physiological demand imposed by exercise in patients with PH.
