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Preoperative diagnosis of hepatic angiomyolipomas using real-time contrast-enhanced ultrasound: comparison with contrast-enhanced helical CT / 中华超声影像学杂志
Chinese Journal of Ultrasonography ; (12): 485-488, 2010.
Artigo em Chinês | WPRIM | ID: wpr-388795
ABSTRACT
Objective To observe the perfusion pattern of hepatic angiomyolipomas using contrastenhanced ultrasound(CEUS) and compare diagnostic efficacy of contrast-enhanced ultrasound with contrastenhanced helical CT(CECT).Methods Nineteen patients with 21 resected and pathologically proven hepatic angiomyolipomas were included in this study.Low mechanical index (mechanical index less than 0.2) realtime CEUS was performed in nineteen patients (5 patients with pulse inversion harmonic, 14 patients with contrast pulse sequencing, CPS) after 2.4ml bolus injection of contrast agent SonoVue.CECT was performed using 16-slice helical CT and contrast agent Ultravist.The diagnostic performance was calculated by considering histologic results as the reference standards.Results Fifteen tumors were correctly diagnosed as hepatic angiomyolipomas,4 tumors were misdiagnosed (including 1 hepatocellular carcinoma,2hepatic adenomas, 1 hemangioma) and 2 tumors were characterized as benign lesions by CEUS.Eight tumors were correctly diagnosed as hepatic angiomyolipomas, 13 tumors were misdiagnosed (including 7hepatocellular carcinoma, 1 liposarcoma, 2 lipomas, 1 hepatic adenomas, 2 hemangiomas) by CECT.The preoperative diagnostic accuracy was 71.4% for CEUS and 38.1 % for CECT(P<0.05 ).Conclusions CEUS can demonstrate typical imaging characteristics of most hepatic angiomyolipomas, and has higher diagnostic performance than CECT in characterization of hepatic angiomyotipomas.

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Tipo de estudo: Estudo diagnóstico / Guia de Prática Clínica Idioma: Chinês Revista: Chinese Journal of Ultrasonography Ano de publicação: 2010 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Tipo de estudo: Estudo diagnóstico / Guia de Prática Clínica Idioma: Chinês Revista: Chinese Journal of Ultrasonography Ano de publicação: 2010 Tipo de documento: Artigo