Abstract
To investigate the value of contrast-enhanced ultrasonography (CEUS) in the evaluation of neovascular density in plaques with different carotid atherosclerosis. 97 patients with carotid plaques were observed by conventional ultrasound from January 2016 to December 2018. The CEUS test was used to grade and quantify the new blood vessels in the plaque. The results showed of the 97 patients with 101 plaques, 49 were soft plaques, 45 were mixed plaques, and 7 were hard plaques. CEUS clearly showed the continuity of plaque fibrous caps and found plaque ulcers that were easily missed by conventional ultrasound. The lower the echo of the plaque, the more obvious contrast enhancement in the plaques. Quantitative analysis of CEUS showed the peak time of soft plaques was shorter and the peak intensity of soft plaques was higher compared with mixed plaques. The difference was statistically significant (P <0.01). The results displayed that carotid CEUS is a convenient and intuitive new technology that can better help analyze plaque morphology and determine and quantify the extent of neovascularization in plaque. It can be used for clinical evaluation of potential cerebrovascular risk and also provides an accurate and reproducible detection method for clinical efficacy evaluation.
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