Single-sweep automated 3-D ultrasound is a new imaging modality for the assessment of carotid plaque. Its most important application is the measurement of the plaque volume. To our knowledge, to date there is not a widely accepted "gold standard" to validate 3-D plaque volume measurement. We compared the findings of 2-dimensional and 3-D carotid ultrasound imaging with those of postsurgical plaque specimen using a simple method.
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