Comparison of seismocardiography to echocardiography for measuring cardiac cycle events

DSpace/Manakin Repository

Show simple item record

dc.contributor.author Quarrie, David Mac
dc.contributor.author Neary, Patrick
dc.date.accessioned 2011-04-21T22:23:40Z
dc.date.available 2011-04-21T22:23:40Z
dc.date.issued 2011-04-02
dc.identifier.uri http://hdl.handle.net/10294/3343
dc.description.abstract Background Seismocardiography (SCG) measures timing and force of cardiac contraction. However, limited data is available to confirm its ability to accurately record these events in comparison to echocardiography (Echo). This study compared SCG with Echo to determine whether SCG provided a valid measure of cardiac performance. We hypothesized that the SCG measurements would not be different from Echo. Methods and Results SCG and Echo was performed on 28 (17 females) healthy volunteers (Mean ± SD; age=39.3±13.9 yrs; age range = 12-59 yrs). The SCG was recorded in the supine position. Following SCG collection, Doppler and M-mode Echo measurements were collected. Data analysis was performed on 10 cardiac cycles (SCG’s) and 1-3 Echo images. The results showed the % differences between the Echo and SCG for all comparable variables ranged from 0.90% to 11%, with similar coefficient of variation. Independent T-tests (p<0.05) showed no significant differences between the Echo and SCG, respectively, for aortic valve open to acceleration time of systole (71±13 vs 76±12 msec), mitral valve open to E-wave (111±33 vs 110±20 msec), E-wave to A-wave (370±118 vs 410±144 msec), mitral valve open to E-wave (159±20 vs 164±28 msec), and mitral valve open to mitral valve close (536±129 vs 573±148 msec). Statistically significant differences were found for aortic valve open to aortic valve close (292±18 vs 264±20 msec), and isovolumic relaxation time (81±15 vs 91±8 msec). Conclusion SCG reliably measured cardiac timing when compared to the reference method, suggesting that SCG could be used in applied and clinical research. en_US
dc.language.iso en en_US
dc.publisher University of Regina Graduate Students' Association en_US
dc.relation.ispartofseries Posters and Exhibits en_US
dc.subject Cardiac performance en_US
dc.subject Seismocaridology en_US
dc.subject Echocardiology timing en_US
dc.title Comparison of seismocardiography to echocardiography for measuring cardiac cycle events en_US
dc.type Presentation en_US
dc.description.authorstatus Student en_US
dc.description.peerreview yes en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search oURspace


Browse

My Account

About