The diagnostic value of Superb Microvascular Imaging in identifying benign tumors of parotid gland

BMC Medical Imaging

Fangxuan Li¹  Jie Mu²  Lihui Zhao²  Jing Zhao²  Sheng Zhang²  Xiaojie Xin²  Yiran Mao² 

[1] Department of Cancer Prevention, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China;Department of Ultrasound, Tianjin Medical University Cancer Institute and Hospital; National Clinical Research Center for Cancer, China; Key Laboratory of Cancer Prevention and Therapy, Tianjin;Tianjin’s Clinical Research Center for Cancer, Binshuixi Road, Hexi District, 300060, Tianjin, China;

关键词: Superb microvascular imaging;    Parotid gland tumors;    Pleomorphic adenoma;    Warthin’s tumor;    Basal cell adenoma;   

DOI  :  10.1186/s12880-020-00506-y

来源: Springer

【 摘 要 】

BackgroundWe compared the ultrasound features, superb microvascular imaging (SMI) and micro vessel density (MVD) of pleomorphic adenoma (PA), Warthin’s tumor (WT) and basal cell adenoma (BCA) to explore the clinic value of SMI in differential diagnosis of benign tumors of parotid gland.MethodsThe vascular distributions and grade by color doppler flow imaging (CDFI) and SMI, as well as vascular index (VI) of 249 parotid gland masses from 217 patients were analyzed.ResultsThe internal echogenicity of BCA are more homogeneous in comparing with WT and PA(P < 0.05). By SMI, the vascular distribution and vascular grade in PA were mainly peripheral (33.1%) and avascular (25.7%), Grade 1 (27.8%) and Grade 0 (25.7%). WT were mainly central (31.3%) and mixed distribution (34.9%), in Grade 3 (37.3%) and Grade 2 (36.2%). BCA was mainly peripheral (33.3%) and mixed distribution (33.3%), in Grade 2 (33.3%) and Grade 3 (33.3%). The overall detection rate of SMI for vascular Grade 2 and 3 was significantly higher than that of CDFI (P < 0.05). Both VI and MVD were lowest in PA, highest in WT (P < 0.001). The VI by SMI was correlated with MVD (P < 0.001). The correlation index between vascular distribution and grade by SMI and MVD were significantly higher than CDFI.ConclusionSMI can provide low-velocity blood flow information, which is helpful for the differential diagnosis of common benign tumors of parotid gland, and is expected to be more widely used.

【 授权许可】

CC BY