B‐mode real‐time ultrasonic carotid imaging

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Abstract
The roles of B-mode real-time ultrasonic imaging (USI) and carotid angiography (CAG) in deciding on endarterectomy were analyzed. When greater than 50% stenosis and/or complicated ulceration were predicted by both techniques, endarterectomy was undertaken in 21/25; by only CAG in 518; and by only US1 in 10/21. In vessels with adequate surgical data, stenosis was accurately predicted by CAG in 27/32, US1 in 20132, and ulceration by both CAG and US1 in 21/29. US1 results were sometimes used to justify endarterectomy despite unimpressive CAG. CAG is a better predictor of stenosis, whereas both are limited in predicting ulceration.

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