Case studies ATK: 19cm CTO in SFA; Dr. C. Wissgott ATK: subintimal crossing of CTO; Dr. J. Rundback ATK: SFA bifurcation; Dr. L. Raja ATK: calcified mid-SFA; Dr. E. Armstrong ATK: severely dissected SFA; Dr. G. Adams ATK: 10cm lesion in SFA; Dr. J. Cardenas ATK: focal calcium in SFA; Dr. J. Cardenas BTK: mid-PT and ATK; mid SFA; Dr. M. Lichtenberg BTK: distal TP trunk; Dr. C. Wissgott BTK: mid-AT; Dr. N. Shammas