Echocardiographic left ventricular mass measurement in small animals: anatomic validation in normal and aortic regurgitant rabbits

To determine the accuracy of echocardiographic methods of measurement of left ventricular mass (LVM) in small animals, two-dimensional (2-D) and M mode echocardiography was performed in 30 normal New Zealand White rabbits and in 30 rabbits with surgically induced aortic regurgitation