Early image alternations in 55 patients with primary liver cancer treated by high intensity focused ultrasound
- VernacularTitle:高强度聚焦超声治疗55例原发性肝癌后的早期影像学变化
- Author:
Feng WU
;
Zhibiao WANG
;
Wenzhi CHEN
- Publication Type:Journal Article
- Keywords:
Carcinoma, hepatocellular;
Ultrasonic therapy;
Nuclear magnetic resonance
- From:
Chinese Journal of General Surgery
2001;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo evaluate the early image alterations of primary liver cancer (PLC) treated by high intensity focused ultrasound (HIFU). MethodsA total of 55 PLC patients underwent extracorporeal HIFU ablation. Color Doppler ultrasound, digital substraction angiography (DSA), computed tomography (CT) or magnetic resonance imaging (MRI) were performed to monitor the therapeutic response.ResultsImage examinations obtained 2 weeks after HIFU ablation showed significant response of PLC. MRI was the best for evaluating HIFU efficacy. Unenhanced MRI revealed signal alterations on both T 1 and T 2 weighted images, and enhanced MRI demonstrated the absence of contrast enhancement in the treated HCC and a thin peripheral rim of enhancement surrounding the coagulation necrosis. ConclusionMRI rapidly assesses HIFU induced complete ablation of HCC, residual viable cancer tissure in treated region, and coagulation extent of HIFU treatment.
