Comparison of B-mode ultrasound, 3-dimensional ultrasound, and magnetic resonance imaging measurements of carotid atherosclerosis

Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine
Micaela EggerGrace Parraga

Abstract

We compared the intraobserver and interscan variability of carotid atherosclerosis measured using B-mode ultrasound for quantifying intima media thickness (IMT), 3-dimensional ultrasound (3DUS) for quantifying vessel wall volume (VWV) and total plaque volume (TPV), and magnetic resonance imaging (MRI) for measuring VWV. We also evaluated the associations of these measurements and sample sizes required to detect specific changes in patients with moderate atherosclerosis. Ten patients were evaluated with B-mode ultrasound, MRI, and 3DUS twice within 14 +/- 2 days. Measurements of IMT, MRI VWV, 3DUS VWV, and 3DUS TPV were performed by single observers using manual (VWV and TPV) and semiautomated (IMT) segmentation. Intraobserver coefficients of variation were 3.4% (IMT), 4.7% (3DUS VWV), 6.5% (MRI VWV), and 23.9% (3DUS TPV). Interscan coefficients of variation were 8.1% (MRI VWV), 8.9% (IMT), 13.5% (3DUS VWV), and 46.6% (3DUS TPV). Scan-rescan linear regressions were significant for 3DUS TPV (R(2) = 0.57), 3DUS VWV (R(2) = 0.59), and IMT (R(2) = 0.75) and significantly different (P < .05) for MRI VWV (R(2) = 0.87). B-mode ultrasound-derived IMT provided the highest intraobserver and interscan reproducibility. Three-dimensional mea...Continue Reading

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Citations

Aug 14, 2009·Medical Physics·Christiane MallettGrace Parraga
May 22, 2009·The International Journal of Cardiovascular Imaging·Mushabbar A SyedArshed A Quyyumi
May 19, 2017·Canadian Journal of Physiology and Pharmacology·Stéphanie LeBlancEric Larose
Aug 4, 2009·Ultrasound in Medicine & Biology·Adam KrasinskiGrace Parraga

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