ABSTRACT
Background: The triangle of Brocq and Mouchet is an arteriovenous triangle between the anterior interventricularartery, circumflex artery and the great cardiac vein. The vascular triangle has been classified into 4 types viz.closed, superiorly opened, inferiorly opened and completely opened or absent. Polyurethane foam is a newmaterial used in corrosion casting. It is economical, easy to carry out and does not require special apparatus.Context and purpose of the study:a) To study the relationship of the Great cardiac vein (GCV) in the triangle of Brocq and Mouchet in human heartsusing PU foam for corrosion cast.b) To study the relationship of GCV in relation to the arteries forming the triangle.Results: The triangle was present in 98% of the hearts. Relationship of GCV in triangle of Brocq and Mouchet:Inferiorly open type of Triangle was the most common (87.5%). Next common type was, closed type (6.7%). Inrelation to GCV relation with the arteries in the triangle, it was to the left of AIA in 87.51% and crosses circumflexartery, either superficially or deep.The GCV crossing anterior interventricular artery was found in few specimens. It crossed the artery superficiallyor deeply. The intertwining type of variation was observed in few casts, and could not be placed under anyclassification as suggested by previous authors.Conclusion: The topography of the Great cardiac vein and its variations are significant in relation to the arteriesin the region. It is relevant in interventional cardiology, radiology, and catheter-based procedures.