Interpretation of the Results of Ankle-Brachial Index Measurement >1.30 Poorly compressible vessels, arterial calcification 0.90–1.30 Normal 0.60–0.89 Mild arterial obstruction 0.40–0.59 Moderate obstruction <0.40 Severe obstruction Obtained by measuring the systolic blood pressure (using a properly sized sphygmomanometer) in the ankle divided by that in the brachial artery. The presence of arterial calcification can lead to an overestimate in the index. #AnkleBrachialIndex #ABI #diagnosis #vascular #severity
