Ankle Brachial Index

Reference work entry


Ankle Brachial Index (ABI) is a common objective measurement of the lower limb arterial blood flow. ABI is the ratio of the average systolic blood pressure measured in brachial/ankle arteries. Briefly, measurements are generally performed twice on both sides at rest in brachial arteries and pedal and/or posterior tibial arteries using a doppler ultrasonic instrument to detect the pulses, an inflation cuff adapted to lower limb and either a mercury sphygmomanometer or other devices. The cutpoint defining Lower Extremity Arterial Disease (LEAD) is an ABI lower than 0.90.


Public Health Blood Pressure Blood Flow Systolic Blood Pressure Lower Extremity 
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© Springer Science+Business Media LLC 2010

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