Change search
ReferencesLink to record
Permanent link

Direct link
Differences in myocardial velocities during supine and upright exercise stress echocardiography in healthy adults
KTH, School of Technology and Health (STH), Medical Engineering.
KTH, School of Technology and Health (STH), Medical Engineering.ORCID iD: 0000-0002-5795-9867
KTH, School of Technology and Health (STH).
Show others and affiliations
2009 (English)In: Clinical Physiology and Functional Imaging, ISSN 1475-0961, E-ISSN 1475-097X, Vol. 29, no 3, 216-223 p.Article in journal (Refereed) Published
Abstract [en]

Tissue Velocity Imaging (TVI) is a method for quantitative analysis of longitudinal myocardial velocities, which can be used during exercise and pharmacological stress echocardiography. It is of interest to evaluate cardiac response to different types of stress tests and the differences between upright and supine bicycle exercise tests have not been fully investigated. Therefore, the aim of this study was to compare cardiac response during supine and upright exercise stress tests. Twenty young healthy individuals underwent supine and upright stress test. The initial workload was set to 30 W and was increased every minute by a further 30 W until physical exhaustion. Tissue Doppler data from the left ventricle were acquired at the end of every workload level using a GE Vivid7 Dimension system (> 200 frames s(-1)). In the off-line processing, isovolumic contraction velocity (IVCV), peak systolic velocity (PSV), isovolumic relaxation velocity (IVRV), peak early diastolic velocity (E') and peak late diastolic velocity (A') were identified at every workload level. No significant difference between the tests was found in PSV. On the contrary, E' was shown to be significantly higher (P < 0.001) during supine exercise than during upright exercise and IVRV was significantly lower (P < 0.001) during supine exercise compared to upright exercise. Upright and supine exercise stress echocardiography give a comparable increase in measured systolic velocities and significant differences in early diastolic velocities.

Place, publisher, year, edition, pages
2009. Vol. 29, no 3, 216-223 p.
Keyword [en]
diastolic function, longitudinal myocardial velocity, non-pharmacological stress, systolic function, tissue velocity imaging
National Category
Medical Laboratory and Measurements Technologies
URN: urn:nbn:se:kth:diva-32153DOI: 10.1111/j.1475-097X.2009.00860.xISI: 000264545000010ScopusID: 2-s2.0-63549102235OAI: diva2:409208

QC 20150721

Available from: 2011-04-07 Created: 2011-04-07 Last updated: 2015-07-21Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Bjällmark, AnnaLarsson, MatildaLind, BrittaBrodin, Lars-Ake
By organisation
Medical EngineeringSchool of Technology and Health (STH)
In the same journal
Clinical Physiology and Functional Imaging
Medical Laboratory and Measurements Technologies

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 65 hits
ReferencesLink to record
Permanent link

Direct link