Valeria Ottaviani1, Chiara Veneroni1, Raffaele L Dellaca'1, Anna Lavizzari2, Fabio Mosca2,3, Emanuela Zannin1,4. 1. Technologies for Respiration Laboratory-TechRes LabDepartment of Electronic, Information and Bioengineering (DEIB)Politecnico di Milano University 20133 Milan Italy. 2. NICUFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico 20122 Milan Italy. 3. Department of Clinical Sciences and Community HealthUniversity of Milan 20122 Milan Italy. 4. NICUFondazione Monza e Brianza per il Bambino e la sua Mamma 20900 Monza Italy.
Abstract
OBJECTIVE: Monitoring infants' breathing activity is crucial in research and clinical applications but remains a challenge. This study aims to develop a contactless method to monitor breathing patterns and thoracoabdominal asynchronies in infants inside the incubator, using depth cameras. METHODS: We proposed an algorithm to extract the 3D displacements of the ribcage and abdomen from the analysis of depth images. We evaluated the accuracy of the system in-vitro vs. a reference motion capture analyzer. We also conducted a feasibility study on 12 patients receiving non-invasive respiratory support to estimate the mean and the variability of the chest wall displacements in preterm infants and evaluate the suitability of the proposed system in the clinical setting. RESULTS: In-vitro, the mean (95% CI) error in the measurement of amplitude, frequency and phase shift between compartmental displacements was -0.14 (-0.57, 0.28) mm, 0.02 (-0.99, 1.03) bpm, and -0.40 (-1.76, 0.95)°, respectively. In-vivo, the mean (95% CI) amplitude of the ribcage and abdomen displacements were 0.99 (0.34, 2.67) mm and 1.20 (0.40, 2.15) mm, respectively. CONCLUSIONS: The developed system proved accurate in-vitro and was suitable for the clinical environment. CLINICAL IMPACT: The proposed method has value for evaluating infants' breathing patterns in research applications and, after further development, may represent a simple monitoring tool for infants' respiratory activity inside the incubator.
OBJECTIVE: Monitoring infants' breathing activity is crucial in research and clinical applications but remains a challenge. This study aims to develop a contactless method to monitor breathing patterns and thoracoabdominal asynchronies in infants inside the incubator, using depth cameras. METHODS: We proposed an algorithm to extract the 3D displacements of the ribcage and abdomen from the analysis of depth images. We evaluated the accuracy of the system in-vitro vs. a reference motion capture analyzer. We also conducted a feasibility study on 12 patients receiving non-invasive respiratory support to estimate the mean and the variability of the chest wall displacements in preterm infants and evaluate the suitability of the proposed system in the clinical setting. RESULTS: In-vitro, the mean (95% CI) error in the measurement of amplitude, frequency and phase shift between compartmental displacements was -0.14 (-0.57, 0.28) mm, 0.02 (-0.99, 1.03) bpm, and -0.40 (-1.76, 0.95)°, respectively. In-vivo, the mean (95% CI) amplitude of the ribcage and abdomen displacements were 0.99 (0.34, 2.67) mm and 1.20 (0.40, 2.15) mm, respectively. CONCLUSIONS: The developed system proved accurate in-vitro and was suitable for the clinical environment. CLINICAL IMPACT: The proposed method has value for evaluating infants' breathing patterns in research applications and, after further development, may represent a simple monitoring tool for infants' respiratory activity inside the incubator.
Authors: Kim Gibson; Ali Al-Naji; Julie Fleet; Mary Steen; Adrian Esterman; Javaan Chahl; Jasmine Huynh; Scott Morris Journal: Pediatr Res Date: 2019-07-27 Impact factor: 3.756
Authors: Cyda Maria Albuquerque Reinaux; Andrea Aliverti; Lívia Gabriely Melo da Silva; Rafael Justino da Silva; Juliane Neves Gonçalves; Jessica Brito Noronha; José Eulálio Cabral Filho; Armèle Dornelas de Andrade; Murilo Carlos de Amorim Britto Journal: Pediatr Pulmonol Date: 2016-03-17
Authors: Raffaele L Dellaca'; Maria L Ventura; Emanuela Zannin; Miria Natile; Antonio Pedotti; Paolo Tagliabue Journal: Pediatr Res Date: 2010-01 Impact factor: 3.756
Authors: Mauricio Villarroel; Sitthichok Chaichulee; João Jorge; Sara Davis; Gabrielle Green; Carlos Arteta; Andrew Zisserman; Kenny McCormick; Peter Watkinson; Lionel Tarassenko Journal: NPJ Digit Med Date: 2019-12-12