ankle-brachial index

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ankle-brachial index (ABI),

objective measurement of arterial insufficiency based on the ratio of ankle systolic pressure to brachial systolic pressure. An ABI of 1.0 indicates absence of arterial insufficiency; an ABI of less than 0.50 indicates severe arterial insufficiency.

ankle-brachial index (ABI)

the ratio of ankle systolic pressure to the arm systolic pressure, used in assessing the status of lower extremity arteries. It is calculated by dividing the higher of the left and right ankle pressures by the higher of the two brachial artery pressures. Also called ankle-arm index.

ankle-brachial index

The ankle-to-arm ratio of systolic blood pressure, which is useful in diagnosing peripheral arterial disease.

an·kle-bra·chi·al in·dex

(ABI) (ang'kel-brā'kē-ăl in'deks)
Objective measurement of arterial insufficiency based on the ratio of ankle systolic pressure to brachial systolic pressure. An ABI of 1.0 indicates absence of arterial insufficiency; an ABI of less than 0.50 indicates severe arterial insufficiency.
Synonym(s): ankle-arm index.

ankle-brachial index

; ABI; ankle-brachial pressure index; ABPI the numerical ratio (A/B) of the systolic blood pressures at the ankle (A) and the arm (B) (Table 1)
Table 1: Interpreting ankle brachial (A/B) indices
Systolic pressure ratio (A/B)Interpretation
0.9-1.1Normal
0.5-0.9Arterial compromise/impaired arterial supply to lower leg/foot; patient may report claudication
<0.5Severe arterial supply/frank ischaemia of lower leg and foot; patient may report rest pain
0.1-0.2Impending/frank ischaemic gangrene
> 1.1Incompressible leg artery due to MÖnckeberg's sclerosis; compromised arterial supply to lower leg and foot
References in periodicals archive ?
INTRODUCTION: The ankle-brachial pressure index (ABI), which is the ratio of ankle to brachial systolic blood pressure, is the golden standard for the diagnosis of peripheral arterial disease (PAD) and is a highly specific method for the assessment of vascular risk in otherwise asymptomatic patients.
The ankle-brachial pressure index (ABPI) is a, simple, most reliable, accurate, rapid, inexpensive, non-invasive, quantitative measurement & the initial test for screening and diagnosing peripheral arterial disease.
The ankle-brachial pressure index also has prognostic significance because of the association with arterial disease elsewhere, especially coronary heart disease.
The ankle-brachial pressure index (ABPI) is a, simple, accurate, rapid, inexpensive, non-invasive measurement & the initial test for screening and diagnosing peripheral arterial disease.
In most cases peripheral arterial disease (PAD) can be confirmed by measuring the ankle-brachial pressure index (ABPI).
In most cases PAD can be confirmed by measuring the ankle-brachial pressure index (ABPI), often by Doppler ultrasound.
The ankle-brachial pressure index (ABPI) was measured by Doppler ultrasound, and PAD was defined as a ratio less than 0.