Fig. 1

TTFM measurement of a LIMA to LAD graft. Use of the imaging probe showed an intimal flap in the anastomosis (which is most probably the result from a plaque removed when an endarterectomy was preformed). (a) The surgeon did not revise the graft initially, as the TTFM parameters were good (pre-protamine). (b) However, the TTFM parameters dropped post-protamine and the graft was revised. (c) The flap was removed, and the MGF & PI improved