1. Implications of Normal Left Ventricular Wall Thickness in Critical Aortic Stenosis 
Gary A. Bergeron, M.D., F.C.C.P., Nelson B. Schiller, M.D. 
CHEST 
Volume 90, Issue 3, Pages (September 1986)
DOI: /chest
Copyright © 1986 The American College of Chest Physicians Terms and Conditions

2. Figure 1
End-diastolic stop frame parasternal long axis view of case 1. Note densely calcified aortic leaflets, normal septal wall thickness, and calcified mitral annulus. A pulsed Doppler is being simultaneously performed. The sample volume (small square) is positioned just behind the aortic valve in an attempt to find aortic insufficiency.
CHEST  , DOI: ( /chest )
Copyright © 1986 The American College of Chest Physicians Terms and Conditions