Fig. 7From: The functional limits of the aneurysmal aortic root. A unique pressure testing apparatusPhotograph of the aortic root region taken from the superior aspect. The spreading of the injected saline into the aortic layers and propagating as a dissection in a circumferential pattern is seen. The superior clamp is proximal and the inferior clamp is distal. The pressure probe is removed from the center of the image for clarityBack to article page