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目的研究超声造影伽马拟合分析技术在肾癌(RCC)与肾血管平滑肌脂肪瘤(RAML)鉴别诊断中的应用价值。方法收集2013年6月至2015年6月在该院接受诊治并有完整超声造影影像学资料的RCC患者50例(RCC组)和RAML患者30例(RAML组)。超声造影检查并采集动态造影数据,导入SW-UCS-1型超声造影分析软件进行脱机分析,对时间-强度曲线进行分析并获得以下参数:曲线下面积(AUC)、强度增幅(AMP)、峰值减半斜率(a2)、上升支斜率(a3)、峰值强度(PI)、基础强度(BI)、达峰时间(TTP)、显影时间(AT)、平均通过时间(MTT),同时评价两组患者的增强强度及增强模式。结果 RCC组与RAML组比较,AUC、a3、PI、AMP有统计学差异(P<0.05),两组a2、BI、TTP、AT、MTT比较没有显著性差异(P>0.05)。增强模式研究发现:RCC组主要为“快进快出”(78%),RAML组主要为“慢进慢出”(83.33%),增强强度发现:RCC组主要为高增强(84%),RAML组主要为低增强(83.33%)。结论超声造影伽马拟合分析技术是一种鉴别RCC与RAML的良好方法,具有一定的临床应用价值。
Objective To study the value of contrast-enhanced ultrasound contrast-enhanced gamma-ray analysis in the differential diagnosis of renal cell carcinoma (RCC) and renal angiomyolipoma (RAML). Methods Fifty patients with RCC (RCC group) and 30 patients with RAML (RAML group) were enrolled in this hospital from June 2013 to June 2015. The results of contrast-enhanced ultrasound and dynamic contrast-enhanced imaging were analyzed and analyzed by SW-UCS-1 contrast-enhanced ultrasound software. The time-intensity curves were analyzed and the following parameters were obtained: area under the curve (AUC) (A2), rising slope (a3), peak intensity (PI), basal intensity (BI), peak time (TTP), development time (AT) and mean transit time (MTT) Group of patients with enhanced intensity and enhancement mode. Results There were significant differences in AUC, a3, PI and AMP between RCC group and RAML group (P <0.05). There was no significant difference in a2, BI, TTP, AT and MTT between two groups (P> 0.05). In the enhanced mode, it was found that the RCC group was predominantly fast-moving fast (78%) and the RAML group was mainly slow-slow-slowing (83.33%). 84%), while the RAML group was mainly low enhancement (83.33%). Conclusion The contrast-enhanced gamma-ray analysis technique is a good method to identify RCC and RAML, and has certain clinical value.