摘要:目的评估MRI对高强度聚焦超声(high intensity focused ultrasound,HIFU)治疗骨肉瘤疗效随访的价值.方法前瞻性分析了经病理证实的16例骨肉瘤在HIFU治疗前后的MR平扫和多时相动态增强表现与诊断,并与 99m 锝-亚甲基二磷酸盐( 99m Tc-MDP)静态骨显像对照.结果 MRI可正确判断14例骨肉瘤在HIFU治疗后的疗效.HIFU治疗前,16例骨肉瘤在T1WI上呈低信号、T2WI为混杂高信号,多时相动态扫描各期明显强化, 99m Tc-MDP骨显像显示瘤灶放射性异常浓聚.HIFU治疗后1~4周,瘤灶在T1WI上呈稍高信号、多时相动态扫描各期无强化、灭活区边缘见1条薄的强化带; 99m Tc-MDP骨显像显示瘤灶的放射性异常浓聚消失.HIFU治疗后3~25个月,瘤灶逐渐缩小,T2WI上的信号缓慢下降.结论 HIFU是一种有效局部治疗骨肉瘤的方法,MRI能准确评估HIFU治疗骨肉瘤的疗效.
注:因版权方要求,不能公开全文,如需全文,请咨询杂志社
热门期刊服务
Journal of Systems Science and Complexity China World Economy Petroleum Science ComputerDIY玩脑者 Cellular Molecular Immunology International Journal of Computing Journal of Systems Science and Systems Engineering Research in Astronomy and Astrophysics Journal of Systems Engineering and Electronics International Journal of Automation Computing Journal of Computer Science and Technology Chinese Journal of Oceanology and Limnology