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| The value of SMI in detection of carotid artery plaque neovascularization |
| Department of Ultrasound Diagnostics, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China |
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Abstract Objective: To investigate the value of ultrasound microflow imaging superb-microvascular imaging(SMI) in carotid plaques neovascularization. Methods: Thirty patients with carotid endarterectomy were enrolled. The hypoechoic, hybrid echo mainly hypoechoic plaques and other isoechoic plaque in total 33, preoperative routine ultrasound, SMI and contrast enhanced ultrasound(CEUS) examination, after operation immunohistochemical staining plaque neovascularization within CD31 were performed. Results: Of 30 patients, SMI detected 24 cases, CEUS detected 27 cases, the presence of pathological neovascularization were detected within 33 plaques; SMI technology and CEUS in the low echo and hybrid echo mainly hypoechoic plaques based location and density of vascular pathology in neonatal echo plaques have better consistency, the sensitivity was 86.3% and 90.9%. The other echo plaque neovascularization show less, pathology results showed that although neovascularization existed within all isoechoic plaque, but decreased significantly compared with two former. Conclusions: Neovascularization mainly exist in the low echo and hybrid echo mainly hypoechoic plaques, SMI technology can detect plaque neovascularization, and may reflect plaque hemodynamic characteristics.
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