PMID: 8944593Nov 1, 1996Paper

Percutaneous transvenous intracardiac ultrasound imaging in dogs: a new approach to monitor left ventricular function

Heart
L JiangM H Picard

Abstract

To evaluate the feasibility and ability of percutaneous transvenous intracardiac echocardiography (ICE) to image the left ventricle (LV) and monitor its function from the right ventricular (RV) cavity. A 10 MHz catheter was advanced into the RV from the jugular vein and positioned along the septum at the LV papillary muscle level in five dogs. The catheter was manipulated until a stable catheter position along the septum, which provided on-axis images of LV, was obtained. Different states of LV size and systolic function (n = 80) were created with dobutamine or esmolol, both in the presence and absence of coronary stenoses. LV stroke area (cm2) obtained by ICE was measured at the mid-ventricular level and compared with stroke volume (cm3) obtained simultaneously with a transaortic flow probe. LV end diastolic, end systolic, and stroke areas obtained by ICE were also compared with those obtained by short-axis epicardial echocardiography. In 96% of the stages, short axis images of the LV could be obtained and measured by ICE. LV end diastolic, end systolic, and stroke areas measured by ICE were not significantly different from epicardial echocardiographic values. Stroke area correlated with stroke volume in each dog (mean correla...Continue Reading

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Citations

Aug 8, 2009·Pacing and Clinical Electrophysiology : PACE·Sanjeev SaksenaRangadham Nagarakanti
Nov 6, 1998·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·J J AllanR E Kerber
Apr 10, 1999·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·M TeragakiJ Yoshikawa
Feb 26, 2004·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Ana Clara Tude RodriguesVivek Y Reddy
Oct 25, 2007·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Xiao Kui LiDavid J Sahn
Feb 15, 2001·Echocardiography·Charles J. BruceJames B. Seward

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