Breathing Chest Wall Kinematics Assessment through a Single Digital Camera: A Feasibility Study
The identification of respiratory patterns based on the movement of the chest wall can assist in monitoring an individual’s health status, particularly those with neuromuscular disorders, such as hemiplegia and Duchenne muscular dystrophy. Thoraco-abdominal asynchrony (TAA) refers to the lack of coo...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/15/6960 |
| _version_ | 1797585983221268480 |
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| author | Nunzia Molinaro Emiliano Schena Sergio Silvestri Carlo Massaroni |
| author_facet | Nunzia Molinaro Emiliano Schena Sergio Silvestri Carlo Massaroni |
| author_sort | Nunzia Molinaro |
| collection | DOAJ |
| description | The identification of respiratory patterns based on the movement of the chest wall can assist in monitoring an individual’s health status, particularly those with neuromuscular disorders, such as hemiplegia and Duchenne muscular dystrophy. Thoraco-abdominal asynchrony (TAA) refers to the lack of coordination between the rib cage and abdominal movements, characterized by a time delay in their expansion. Motion capture systems, like optoelectronic plethysmography (OEP), are commonly employed to assess these asynchronous movements. However, alternative technologies able to capture chest wall movements without physical contact, such as RGB digital cameras and time-of-flight digital cameras, can also be utilized due to their accessibility, affordability, and non-invasive nature. This study explores the possibility of using a single RGB digital camera to record the kinematics of the thoracic and abdominal regions by placing four non-reflective markers on the torso. In order to choose the positions of these markers, we previously investigated the movements of 89 chest wall landmarks using OEP. Laboratory tests and volunteer experiments were conducted to assess the viability of the proposed system in capturing the kinematics of the chest wall and estimating various time-related respiratory parameters (i.e., <i>f<sub>R</sub></i>, <i>T<sub>i</sub></i>, <i>T<sub>e</sub></i>, and <i>T<sub>tot</sub></i>) as well as TAA indexes. The results demonstrate a high level of agreement between the detected chest wall kinematics and the reference data. Furthermore, the system shows promising potential in estimating time-related respiratory parameters and identifying phase shifts indicative of TAA, thus suggesting its feasibility in detecting abnormal chest wall movements without physical contact with a single RGB camera. |
| first_indexed | 2024-03-11T00:16:46Z |
| format | Article |
| id | doaj.art-b250eddb55644073a4d886cce82b3102 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T00:16:46Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-b250eddb55644073a4d886cce82b31022023-11-18T23:36:47ZengMDPI AGSensors1424-82202023-08-012315696010.3390/s23156960Breathing Chest Wall Kinematics Assessment through a Single Digital Camera: A Feasibility StudyNunzia Molinaro0Emiliano Schena1Sergio Silvestri2Carlo Massaroni3Unit of Measurements and Biomedical Instrumentation, Università Campus Bio-Medico di Roma, 00128 Rome, ItalyUnit of Measurements and Biomedical Instrumentation, Università Campus Bio-Medico di Roma, 00128 Rome, ItalyUnit of Measurements and Biomedical Instrumentation, Università Campus Bio-Medico di Roma, 00128 Rome, ItalyUnit of Measurements and Biomedical Instrumentation, Università Campus Bio-Medico di Roma, 00128 Rome, ItalyThe identification of respiratory patterns based on the movement of the chest wall can assist in monitoring an individual’s health status, particularly those with neuromuscular disorders, such as hemiplegia and Duchenne muscular dystrophy. Thoraco-abdominal asynchrony (TAA) refers to the lack of coordination between the rib cage and abdominal movements, characterized by a time delay in their expansion. Motion capture systems, like optoelectronic plethysmography (OEP), are commonly employed to assess these asynchronous movements. However, alternative technologies able to capture chest wall movements without physical contact, such as RGB digital cameras and time-of-flight digital cameras, can also be utilized due to their accessibility, affordability, and non-invasive nature. This study explores the possibility of using a single RGB digital camera to record the kinematics of the thoracic and abdominal regions by placing four non-reflective markers on the torso. In order to choose the positions of these markers, we previously investigated the movements of 89 chest wall landmarks using OEP. Laboratory tests and volunteer experiments were conducted to assess the viability of the proposed system in capturing the kinematics of the chest wall and estimating various time-related respiratory parameters (i.e., <i>f<sub>R</sub></i>, <i>T<sub>i</sub></i>, <i>T<sub>e</sub></i>, and <i>T<sub>tot</sub></i>) as well as TAA indexes. The results demonstrate a high level of agreement between the detected chest wall kinematics and the reference data. Furthermore, the system shows promising potential in estimating time-related respiratory parameters and identifying phase shifts indicative of TAA, thus suggesting its feasibility in detecting abnormal chest wall movements without physical contact with a single RGB camera.https://www.mdpi.com/1424-8220/23/15/6960chest wall kinematicsrespiratory monitoringthoraco-abdominal displacementsdigital cameras |
| spellingShingle | Nunzia Molinaro Emiliano Schena Sergio Silvestri Carlo Massaroni Breathing Chest Wall Kinematics Assessment through a Single Digital Camera: A Feasibility Study Sensors chest wall kinematics respiratory monitoring thoraco-abdominal displacements digital cameras |
| title | Breathing Chest Wall Kinematics Assessment through a Single Digital Camera: A Feasibility Study |
| title_full | Breathing Chest Wall Kinematics Assessment through a Single Digital Camera: A Feasibility Study |
| title_fullStr | Breathing Chest Wall Kinematics Assessment through a Single Digital Camera: A Feasibility Study |
| title_full_unstemmed | Breathing Chest Wall Kinematics Assessment through a Single Digital Camera: A Feasibility Study |
| title_short | Breathing Chest Wall Kinematics Assessment through a Single Digital Camera: A Feasibility Study |
| title_sort | breathing chest wall kinematics assessment through a single digital camera a feasibility study |
| topic | chest wall kinematics respiratory monitoring thoraco-abdominal displacements digital cameras |
| url | https://www.mdpi.com/1424-8220/23/15/6960 |
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