To which species does this image of an aortic arch (red arrow) belong? ANSWER This is an image of an ovine (sheep) aortic arch! Here’s how we know: In ovine species, from the aortic arch (red arrow) emerges only one branch, the brachiocephalic trunk...
July Image of the Month
YOU BE THE PATHOLOGIST! What is this histologic staining and which structure with a labyrinthic shape does it highlight? ANSWER Hematoxylin-eosin-saffron staining in the rete mirabile! Hematoxylin-eosin-saffron (HE&S) staining was used...
August Image of the Month
YOU BE THE ANATOMIST! What is the structure shown in this arterial angiogram in a sheep? ANSWER The rete mirabile! Rete mirabile means ‘wonderful net’ in Latin, it is a small and dense network of blood vessels found at the base of the brain. This vascular...
September Image of the Month
YOU BE THE CARDIAC IMAGING SPECIALIST! What imaging modality is used to determine the aortomitral angulation in this ovine, and why is its precise measurement so critical? ANSWER The aortomitral angulation is being measured with the use of our new Canon computerized...
May Image of the Month
YOU BE THE CARDIAC IMAGING SPECIALIST! What abnormality is demonstrated in this color flow Doppler echocardiogram? ANSWER Functional Mitral Regurgitation! In the presence of heart disease, the mitral annulus can dilate to the point where the leaflets of the mitral...
February Image of the Month
ANSWER: These Bioprosthetic Aortic Valve Leaflets Are Infected! Bacterial endocarditis is a known potential complication of the implantation of a bioprosthetic cardiac valve. This can result from a break in sterility or simply following an episode of sporadic...
March Image of the Month
YOU BE THE CARDIAC IMAGING SPECIALIST! What type of echography was used to evaluate the tricuspid valve of this sheep? ANSWER IntraCardiac Echography (ICE)! ICE is the only minimally invasive way to properly assess the tricuspid valve in ovines. In comparison to...
April Image of the Month
YOU BE THE ANATOMIST! What important anatomical structure has been highlighted here, and employing what imaging modality? ANSWER The left atrial appendage (LAA) in a canine heart! This image was acquired using our 64-slice gated CT scanner with 3mensio 3D...