Left ventricular segmental volume by conductance catheter and Cine-CT.
The ability of the conductance catheter method to measure left ventricular segmental and total volume was evaluated by comparison with the Cine-CT technique. In the seven dogs studied, 19 conductance catheter and simultaneous Cine-CT runs were obtained. High correlation coefficients were found for total volume and segmental volumes, except in the basal segment. However, in most cases there was a significant variability in slope and intercept between animals. Both methods are promising tools for estimating dynamic segmental left ventricular volume, each having specific advantages such as a continuous signal (conductance catheter) or anatomic detail (Cine-CT). However, the results also show the need for further improvement of both methods.
van der Velde
E T
ET
Department of Cardiology, University Hospital Leiden, The Netherlands.
van Dijk
A D
AD
Steendijk
P
P
Diethelm
L
L
Chagas
T
T
Lipton
M J
MJ
Glanz
S A
SA
Baan
J
J
D000818:Animals; D001810:Blood Volume / Q000502:physiology; D006328:Cardiac Catheterization; D002302:Cardiac Output; D002306:Cardiac Volume / Q000502:physiology*; D003971:Diastole / Q000502:physiology; D004285:Dogs; D006706:Homeostasis / Q000502:physiology; D008955:Models, Cardiovascular; D009200:Myocardial Contraction / Q000502:physiology; D013318:Stroke Volume / Q000502:physiology; D013599:Systole / Q000502:physiology; D014057:Tomography, X-Ray Computed; D016277:Ventricular Function, Left / Q000502:physiology*