Longitudinal plane colour tissue-Doppler myocardial velocities and their association with left ventricular length, volume, and mass in humans
Author
Batterham, Alan M.
Shave, Rob
Oxborough, David
Whyte, Greg
George, Keith
Date
2008Type
Article
ISSN
1525-2167
Metadata
Show full item recordAbstract
Aims
We investigated the relationships between colour tissue-Doppler parameters of left ventricular (LV) function and indices of LV morphology.
Methods and results
LV length, end-diastolic volume, and mass were assessed in 40 healthy adult subjects. Further, colour tissue-Doppler scans assessed peak myocardial velocities during systole (S′) and early diastole (E′) as well as acceleration during isovolumic contraction (IVCa) at the mitral annulus. Non-linear allometric relationships ( Y = aXb ) were calculated to provide size exponents ( b ), with 95% confidence intervals, for tissue-Doppler variables ( Y ) and LV morphology parameters ( X ). The b exponents for LV length with Peaks S′ and E′ were not substantially different from unity ( b = 0.87 and 0.95, respectively, P > 0.05). Peak E′ was also associated with LV volume ( b = 0.39, r = 0.53, P < 0.05). IVCa was not related to any LV morphology parameter.
Conclusion
Peak S′ or E′ divided by LV length was confirmed as a valid size-independent scaling index. Conversely, IVCa is seemingly size independent.
Journal/conference proceeding
European Journal of Echocardiography;
Citation
Batterham, A., Shave, R., Oxborough, D., Whyte, G. and George, K. (2008) 'Longitudinal plane colour tissue-Doppler myocardial velocities and their association with left ventricular length, volume, and mass in humans', European Heart Journal-Cardiovascular Imaging, 9 (4), pp. 542-546
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