ObjectiveTo explore the application value of superb microvascular imaging（SMI）in displaying theblood flow signal and distribution pattern of hepatic hemangioma.MethodsA total of 32 patients with hepatic hemangiomadiagnosed by contrast-enhanced CT/MRI or postoperative pathology in our hospital were selected

with a total of 66 lesions

theywere underwent two-dimensional ultrasound

CDFI and SMI

respectively

and the blood flow was graded by Adler blood flowgrading method.The capabilities of CDFI and SMI in displaying the blood flow signal of hepatic hemangioma were compared.According to the echo performance of the lesions

they were divided into high echo type

low echo type and mixed echo type. Theblood flow distribution patterns of SMI in different echo types of hepatic hemangioma were analyzed.ResultsThe detection ofblood flow signals of hepatic hemangioma by CDFI and SMI were 52 and 3 lesions for grade 0

6 and 2 lesions for grade Ⅰ

5 and13 lesions for grade Ⅱ

3 and 48 lesions for grade Ⅲ

respectively

and the detection rates of blood flow signals were 21.2% and95.5%

respectively. The difference of detection rate of hepatic hemangioma blood flow grading was statistically significant（P<0.05）.The SMI of hyperechoic hemangioma were typeⅠ 1 lesion（3.7%）

typeⅡ 3 lesions（11.1%）

type Ⅲ 22 lesions（81.5%）

and type Ⅳ 1 lesion（3.7%）.The SMI of hypoechoic hemangioma were type Ⅰ 4 lesions（80.0%）

and typeⅡ 1 lesion（20.0%）. The SMI of mixed echogenic hemangioma were type Ⅱ 14 lesions（45.2%）

type Ⅳ 14 lesions（45.2%）

type Ⅴ1 lesion（3.2%）

and type Ⅵ 2 lesions（6.4%）.ConclusionSMI is better than CDFI in detecting the blood flow signal ofhepatic hemangioma. The echo type of hepatic hemangioma may affect the blood flow distribution pattern of SMI.