Fig. 2From: Ex vivo biomechanical analysis of flexible versus rigid annuloplasty rings in mitral valves using a novel annular dilation systemFiber bragg grating (FBG) sensors denoted by white arrows, instrumented onto mitral valve chordae. Yellow arrows denote polytetrafluoroethylene suture attachment points both proximally and distally on the FBG sensor to the instrumented chordae. AL anterior leaflet, PL posterior leaflet, PM papillary muscleBack to article page