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This study evaluates the diagnostic performance of the Ankle-Brachial Pressure Index (ABI) in detecting lower extremity arterial disease (LEAD) using duplex ultrasound (DUS) as a reference standard. The results indicate that ABI has a sensitivity of 72.3% and specificity of 69.3%, suggesting moderate predictive value, with a notable rate of false positives and negatives. The findings recommend further imaging for patients with suspected LEAD despite normal ABI results, highlighting the limitations of ABI as

Author

ghalykh3

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EN