A Study of Cardiac Ventricle Performance Indices Estimated with Data from Single-Beat Pressure Volume Loops
Cardiac ventricle function can be measured from a multiple-beat pressure volume loop sequence, or estimated from a single beat of pressure volume loop data. In this study, the effectiveness of single-beat estimation is evaluated with functional markers defined by maximum elastance, isovolumic mode d...
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| Format: | Article |
| Language: | English |
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IFSA Publishing, S.L.
2020-09-01
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| Series: | Sensors & Transducers |
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| Online Access: | https://sensorsportal.com/HTML/DIGEST/september_2020/Vol_244/P_3159.pdf |
| _version_ | 1797756108744425472 |
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| author | Edward Marcus |
| author_facet | Edward Marcus |
| author_sort | Edward Marcus |
| collection | DOAJ |
| description | Cardiac ventricle function can be measured from a multiple-beat pressure volume loop sequence, or estimated from a single beat of pressure volume loop data. In this study, the effectiveness of single-beat estimation is evaluated with functional markers defined by maximum elastance, isovolumic mode developed pressure, ejecting mode pressure volume area, and isovolumic mode pressure volume area. These estimates applied a linear regression model of chamber volume equilibrium as the calculation input. With data collected from 23 published pressure volume diagrams, estimates were assessed for percent differences to multi-beat outcomes. Results by method were: isovolumic pressure volume area (4 ± 4 %), isovolumic peak pressure (8 ± 6 %), ejecting pressure volume area (9 ± 6 %), and maximum elastance (22 ± 17%); p<.0001 one way ANOVA. The isovolumic pressure volume area estimates had the minimum overall error, and appeared to correlate with chamber volume variations through a measured range from 25 mL to 230 mL. This size correlation suggests the method is useful for interpreting normality of natural changes occurring during developmental stages of pediatric patient growth. |
| first_indexed | 2024-03-12T17:55:49Z |
| format | Article |
| id | doaj.art-c1bbed462ce34b45b97744cdf2bebc43 |
| institution | Directory Open Access Journal |
| issn | 2306-8515 1726-5479 |
| language | English |
| last_indexed | 2024-03-12T17:55:49Z |
| publishDate | 2020-09-01 |
| publisher | IFSA Publishing, S.L. |
| record_format | Article |
| series | Sensors & Transducers |
| spelling | doaj.art-c1bbed462ce34b45b97744cdf2bebc432023-08-02T15:52:09ZengIFSA Publishing, S.L.Sensors & Transducers2306-85151726-54792020-09-01244516A Study of Cardiac Ventricle Performance Indices Estimated with Data from Single-Beat Pressure Volume LoopsEdward Marcus0Cardiology Department, Children’s Hospital BostonCardiac ventricle function can be measured from a multiple-beat pressure volume loop sequence, or estimated from a single beat of pressure volume loop data. In this study, the effectiveness of single-beat estimation is evaluated with functional markers defined by maximum elastance, isovolumic mode developed pressure, ejecting mode pressure volume area, and isovolumic mode pressure volume area. These estimates applied a linear regression model of chamber volume equilibrium as the calculation input. With data collected from 23 published pressure volume diagrams, estimates were assessed for percent differences to multi-beat outcomes. Results by method were: isovolumic pressure volume area (4 ± 4 %), isovolumic peak pressure (8 ± 6 %), ejecting pressure volume area (9 ± 6 %), and maximum elastance (22 ± 17%); p<.0001 one way ANOVA. The isovolumic pressure volume area estimates had the minimum overall error, and appeared to correlate with chamber volume variations through a measured range from 25 mL to 230 mL. This size correlation suggests the method is useful for interpreting normality of natural changes occurring during developmental stages of pediatric patient growth.https://sensorsportal.com/HTML/DIGEST/september_2020/Vol_244/P_3159.pdfpressure volume loopsingle-beat estimatespressure volume areaisovolumic contracting modecontractility methods |
| spellingShingle | Edward Marcus A Study of Cardiac Ventricle Performance Indices Estimated with Data from Single-Beat Pressure Volume Loops Sensors & Transducers pressure volume loop single-beat estimates pressure volume area isovolumic contracting mode contractility methods |
| title | A Study of Cardiac Ventricle Performance Indices Estimated with Data from Single-Beat Pressure Volume Loops |
| title_full | A Study of Cardiac Ventricle Performance Indices Estimated with Data from Single-Beat Pressure Volume Loops |
| title_fullStr | A Study of Cardiac Ventricle Performance Indices Estimated with Data from Single-Beat Pressure Volume Loops |
| title_full_unstemmed | A Study of Cardiac Ventricle Performance Indices Estimated with Data from Single-Beat Pressure Volume Loops |
| title_short | A Study of Cardiac Ventricle Performance Indices Estimated with Data from Single-Beat Pressure Volume Loops |
| title_sort | study of cardiac ventricle performance indices estimated with data from single beat pressure volume loops |
| topic | pressure volume loop single-beat estimates pressure volume area isovolumic contracting mode contractility methods |
| url | https://sensorsportal.com/HTML/DIGEST/september_2020/Vol_244/P_3159.pdf |
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