高强度聚焦超声（HIFU）治疗监控成像及评价的研究现状

High intensity focused ultrasound (HIFU) technique becomes a hot spot research due to noninvasive local destruction in ultrasound surgery area recently. This technique has been used in clinic in China. For effective and precise therapy, targeting and image guidance, monitoring imaging and lesion evaluation before, during and after HIFU surgery must be considered. This paper at first introduces the monitoring and imaging methods based on physical mechanism of HIFU therapy. Then several method based on ultrasound tissue characterization for assessing tissue lesion induced by HIFU are proposed. And three main imaging modalities, i.e. MRI、CT and US, are compared. At last some problems presented in monitoring imaging and evaluation techniques for HIFU surgery are put forward, as well as the development directions.