Comparison of Vascular Doppler and Sphygmomanometer for Measurement of Ankle-brachial Index
Objective: The purpose of the study was to compare the values of ankle brachial index (ABI) measured by Doppler and by sphygmomanometer.
Method: Thirty people were assessed for the ABI measurement through Doppler method by one investigator and by sphygmomanometer method done by another investigator.
Results: The correlation between the ABI taken with sphygmomanometer and with Doppler was 0.745. The value suggests positive correlation between the two. But kappa score was 0.267 with p value 0.143 implied that ABI measurement with Doppler could not be replaced with measurement with help of sphygmomanometer.
Conclusion: Best method of measuring ABI is with Doppler. ABI Measurement with sphygmomanometer does not give good result as compared to Doppler.
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