Without ABI and post exercise ABI duplex of the lower limbs is waste of money

http://www.medpagetoday.com/Cardiology/Prevention/53103?xid=nl_mpt_DHE_2015-08-18&eun=g432148d0r

http://www.sciencedirect.com/science/article/pii/S1936879815008419

http://www.sciencedirect.com/science/article/pii/S1936879815008407

Figure 1. 

Unadjusted Kaplan-Meier Curves in All 4 ABI Groups for Lower Extremity Revascularization

The log-rank test revealed a statistically significant difference between the lower extremity revascularization rates across all 4 groups over time (p < 0.001). ABI = ankle-brachial index; AE = abnormal ankle-brachial index post exercise; AR = abnormal ankle-brachial index at resting; NE = normal ankle-brachial index post exercise; NR = normal ankle-brachial index at resting.

Figure 3. 

Unadjusted Kaplan-Meier Curves in All 4 ABI Groups for All-Cause Mortality

The log-rank test revealed statistically significant different all-cause mortality rates across all 4 ABI groups over time (p < 0.001). Abbreviations as in Figure 1.