Study of the Entropy as a Way to Detect Venous Air Embolism Using a Pre-cordial Doppler
Venous air embolism (VAE) is the air bubble accumulation in the right side of the heart, or in the pulmonary region. Pre-cordial Doppler allows a real-time monitoring of heart sound and is used to detect VAE episodes through changes in cardiac sound. Sometimes these changes are not detected by the o...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universidade do Porto
2015-12-01
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| Series: | U.Porto Journal of Engineering |
| Subjects: | |
| Online Access: | https://journalengineering.fe.up.pt/article/view/45 |
| _version_ | 1811261443766484992 |
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| author | Ana Tedim Pedro Amorim Ana Castro |
| author_facet | Ana Tedim Pedro Amorim Ana Castro |
| author_sort | Ana Tedim |
| collection | DOAJ |
| description | Venous air embolism (VAE) is the air bubble accumulation in the right side of the heart, or in the pulmonary region. Pre-cordial Doppler allows a real-time monitoring of heart sound and is used to detect VAE episodes through changes in cardiac sound. Sometimes these changes are not detected by the operator, which reveals the importance of finding other robust methods for VAE detection. This work aims to study entropy as a feature of the heart sound that may provide useful information on VAE episodes.
A clinical protocol was designed: Doppler Heart Sound (DHS) was collected at baseline, and following infusions of saline with 4 distinct volumes and 2 infusion rates, and given through 2 infusion vias, to 4 patients enrolled in the clinical study. Entropy of these segments was obtained, and relation between the extracted feature and saline infusions was studied.
Entropy presents a good performance showing an increase in response to saline injections (increased blood flow turbulence). |
| first_indexed | 2024-04-12T19:04:28Z |
| format | Article |
| id | doaj.art-8b602298362e4d7d9e9bc375edda0f75 |
| institution | Directory Open Access Journal |
| issn | 2183-6493 |
| language | English |
| last_indexed | 2024-04-12T19:04:28Z |
| publishDate | 2015-12-01 |
| publisher | Universidade do Porto |
| record_format | Article |
| series | U.Porto Journal of Engineering |
| spelling | doaj.art-8b602298362e4d7d9e9bc375edda0f752022-12-22T03:20:03ZengUniversidade do PortoU.Porto Journal of Engineering2183-64932015-12-0112394410.24840/2183-6493_001.002_000545Study of the Entropy as a Way to Detect Venous Air Embolism Using a Pre-cordial DopplerAna Tedim0Pedro Amorim1Ana Castro2INESC TEC - INESC Tecnologia e CiênciaUniversidade do PortoUniversidade do PortoVenous air embolism (VAE) is the air bubble accumulation in the right side of the heart, or in the pulmonary region. Pre-cordial Doppler allows a real-time monitoring of heart sound and is used to detect VAE episodes through changes in cardiac sound. Sometimes these changes are not detected by the operator, which reveals the importance of finding other robust methods for VAE detection. This work aims to study entropy as a feature of the heart sound that may provide useful information on VAE episodes. A clinical protocol was designed: Doppler Heart Sound (DHS) was collected at baseline, and following infusions of saline with 4 distinct volumes and 2 infusion rates, and given through 2 infusion vias, to 4 patients enrolled in the clinical study. Entropy of these segments was obtained, and relation between the extracted feature and saline infusions was studied. Entropy presents a good performance showing an increase in response to saline injections (increased blood flow turbulence).https://journalengineering.fe.up.pt/article/view/45Medical ResearchNeurologyMedical Computing |
| spellingShingle | Ana Tedim Pedro Amorim Ana Castro Study of the Entropy as a Way to Detect Venous Air Embolism Using a Pre-cordial Doppler U.Porto Journal of Engineering Medical Research Neurology Medical Computing |
| title | Study of the Entropy as a Way to Detect Venous Air Embolism Using a Pre-cordial Doppler |
| title_full | Study of the Entropy as a Way to Detect Venous Air Embolism Using a Pre-cordial Doppler |
| title_fullStr | Study of the Entropy as a Way to Detect Venous Air Embolism Using a Pre-cordial Doppler |
| title_full_unstemmed | Study of the Entropy as a Way to Detect Venous Air Embolism Using a Pre-cordial Doppler |
| title_short | Study of the Entropy as a Way to Detect Venous Air Embolism Using a Pre-cordial Doppler |
| title_sort | study of the entropy as a way to detect venous air embolism using a pre cordial doppler |
| topic | Medical Research Neurology Medical Computing |
| url | https://journalengineering.fe.up.pt/article/view/45 |
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