ABPI
Ankle–brachial pressure index (ABPI) is the ratio of ankle pressure (higher reading from the posterior tibial or anterior tibial artery of affected limb) to brachial pressure (higher of the two brachial readings).The ABPI showed an increase over the study period of 12 months. The mean (SD) ABPI increased from 0.47 (0.156) at baseline to 0.61 (0.164) at 1 month, 0.67 (0.134) at 3 months, 0.70 (0.156) at 6 months and 0.73 (0.201) at 12 months which were statistically significant (