Left ventricular isovolumic velocity and duration variables calculated from colour-coded myocardial velocity images in normal individuals

European Journal of Echocardiography : the Journal of the Working Group on Echocardiography of the European Society of Cardiology
Britta LindL-A Brodin

Abstract

To describe the normal myocardial velocity profile during the isovolumic contraction and relaxation period at four different locations within left ventricular base and to establish normal age and gender related isovolumic time and velocity values. In 49 healthy individuals (26 women/23 men) in age groups 21-49 and 50-76 years, tissue velocity profiles and 2D-data were acquired at high temporal resolution (90-147 frames/s) for a subsequent off-line analysis using software enabling retrieval of myocardial Doppler velocity and 2D/anatomical M-mode information from different cardiac locations during the same cardiac cycle. The obtained velocity curves during the isovolumic contraction and relaxation period were usually biphasic and displayed clear regional differences in their respective positive and negative maximal velocities. Besides some gender related differences, mainly in the duration of the positive and negative velocity wave components during the isovolumic contraction period, a clear age-dependent increase in the duration of the isovolumic relaxation phase and its negative and positive velocity components was observed. Modern tissue Doppler imaging supplemented by anatomical M-mode images of the mitral and aortic valve mo...Continue Reading

Citations

Jun 17, 2008·Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association·Shirley Yumi HayashiLars-Ake Brodin
Jun 13, 2006·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Eun Bo ShimAkinori Noma
May 29, 2009·Cardiovascular Ultrasound·Matilda LarssonStig Lundbäck
Sep 5, 2006·Journal of Cardiovascular Electrophysiology·Ioannis A ParaskevaidisDimitrios Th Kremastinos
May 21, 2008·European Journal of Echocardiography : the Journal of the Working Group on Echocardiography of the European Society of Cardiology·Svein A AaseAsbjørn Støylen
May 21, 2008·European Journal of Echocardiography : the Journal of the Working Group on Echocardiography of the European Society of Cardiology·Piercarlo BalloSergio Mondillo
Jan 21, 2014·Clinical Physiology and Functional Imaging·Jonas JohnsonLoghman Henareh
Mar 4, 2009·Clinical Physiology and Functional Imaging·Anna BjällmarkLars-Ake Brodin
Aug 4, 2009·Journal of Veterinary Internal Medicine·C C SchwarzwaldJ D Bonagura
May 9, 2007·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Partho P SenguptaMarek Belohlavek
Oct 12, 2004·Ultrasound in Medicine & Biology·Camilla StoraaLars-Ake Brodin
Apr 23, 2014·Journal of cardiovascular ultrasound·Alexandre J Ouss, Robert K Riezebos
Jun 3, 2011·Journal of Human Hypertension·K K PoppeG A Whalley
Oct 15, 2011·European Journal of Applied Physiology·Tanja OosthuyseAngela J Woodiwiss

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