Author + information
- Zhang Yanling,
- Hui Zhang,
- Junlin Zhong and
- Rongqin Zheng
Superb micro-vascular ultrasound imaging (SMI) is an innovate ultrasound Doppler technique that provided by Toshiba's Aplio TM 500 ultrasound system. There are many benefits of SMI: low-velocity flow visualization, high image resolution, minimal motion artifact, and high frame rates. Therefore, this study aimed to preliminarily investigate the value of SMI in evaluation of neovascularization within carotid atherosclerotic plaques, compared with contrast-enhanced ultrasound (CEUS).
A total of 16 patients with carotid atherosclerotic plaques diagnosed by conventional two-dimensional ultrasound and color Doppler flow imaging were recruited into this study. All of them underwent SMI, and 11 patients underwent CEUS. The location, quantity and morphology of new vessels in the plaque was measured and recorded both in SMI and CEUS, and compared according to the unified standard.
18 carotid atherosclerotic plaques were displayed in 11 patients with mean thickness (2.62 ± 0.41) mm, 10 were in the bifurcation of common carotid artery, 5 in the middle of common carotid, 3 in the internal carotid artery, and 12 were hypoechoic or isoechoic plaques, 6 hybrid echo plaques. And the location, quantity and morphology of new vessels detected by SMI was highly consistent with the CEUS results with kappa value of 0.75 (p>0.05).
SMI is a new, non-invasive and powerful ultrasound technique for diagnosing neovascularization within atherosclerotic plaques.