Combined application of contrast enhanced ultrasound and dynamic contrast enhanced magnetic resonance imaging in hepatic epithelioid hemangioendothelioma
10.3760/cma.j.issn.1004-4477.2018.08.013
- VernacularTitle:超声造影与增强磁共振在诊断肝上皮样血管内皮瘤中的联合应用
- Author:
Yadan XU
1
;
Wenping WANG
;
Qun WANG
;
Feng MAO
;
Chaolun LI
;
Min GUO
;
Dong WU
Author Information
1. 复旦大学附属中山医院超声科 上海市影像医学研究所
- Keywords:
Contrast-enhanced ultrasound;
Contrast-enhanced magnetic resonance imaging;
Liver neoplasms;
Hemangioendothelioma,epithelioid
- From:
Chinese Journal of Ultrasonography
2018;27(8):692-697
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the imaging characteristics of contrast-enhanced ultrasound(CEUS) and dynamic contrast enhanced magnetic resonance imaging ( CEMRI) for diagnosis of hepatic epithelioid hemangioendothelioma ,and to increase the accuracy of diagnostic imaging . Methods The imaging characteristics of CEUS and dynamic CEMRI in 11 patients with hepatic epithelioid hemangioendothelioma confirmed by surgical pathology or fine needle aspiration biopsy were retrospectively analyzed . Results On conventional ultrasound ,14 lesions in 11 patients showed hypoechoic . The peripheral blood flow was detected in most patients by color Doppler flow imaging and the average resistant index was 0 .62 ± 0 .05 . During the arterial phase ,6 lesions showed diffuse enhancement ,6 lesions showed annular enhancement and 2 lesions showed branch enhancement .As to time of peak enhancement ,compared to the normal hepatic parenchyma ,hypoenhancement ,isoenhancement and hyperenhancement were observed in 1 lesion ,7 lesions and 6 lesions respectively . Synchronous enhancement was observed in 8 lesions on contrast-enhanced ultrasound ,rapid enhancement was observed in 5 lesions and slow enhancement was observed in 1 lesion and all lesions decreased quickly in portal phase and delayed phase . On CEMRI ,all lesions showed low signal on TIWI ,high signal on T2WI and DWI . There were 5 lesions showed obvious annular constant enhancement and 1 lesion showed obvious annular progressive enhancement . Progressive peripheral enhancement and fully filling in delayed phase were found in 4 lesions .While progressive peripheral enhancement and incompletely filling in delayed phase were found in 3 lesions . One lesion displayed constant enhancement and incompletely filling in delayed phase . Halo sign" , lollipopsign" , capsular retraction sign" and vessel sign" were appeared in 6 ,7 ,8 and 8 patients respectively . Conclusions Both contrast-enhanced ultrasound and CEMRI have characteristic manifestations for the diagnosis of hepatic epithelioid hemangioendothelioma and cominbing them would be great significance to improve the preoperative diagnostic accuracy .
