目的 评价超声造影(CEUS)对肾占位性病变的诊断效能. 方法 2015 年 6 月至2016 年 12 月我院收治的经病理证实的肾占位性病变患者 31 例纳入研究.所有患者术前均行肾脏常规超声和CEUS,结合术后病理检查结果 比较肾脏各占位性病变的 CEUS特征,评估 CEUS的诊断价值. 结果 肾恶性占位CEUS增强模式以"快进快退"为主,肾良性占位以"慢进慢退"为主,肾脏良恶性占位性病变的CEUS增强模式比较,差异有统计学意义(P<0.05 ).根据时间-信号强度曲线采集相关参数,肾恶性占位的达峰时间明显低于肾良性占位,差异有统计学意义(P<0.05 ). CEUS对肾脏占位性病变良恶性鉴别诊断的灵敏度、特异度、阳性预测值、阴性预测值和准确度分别为 71.4%、91.7%、71.4%、91.7%和 87.1%. 结论 CEUS可以无创评价肾占位性病变,具有较高的临床应用潜能.
Objective To evaluate the diagnostic efficiency of contrast-enhanced ultrasound (CEUS)in renal space occupying lesions. Methods From June 2015 to December 2016,31 pa-tients with pathologically proved renal space occupying lesions were treated in our hospital.All pa-tients underwent routine renal ultrasound and CEUS before operation,and the diagnostic value of CEUS was evaluated according to the CEUS features of renal space occupying lesions and postopera-tive pathology. Results The enhancement mode of renal malignant space occupying lesions was fast forward and fast regression type,and the benign renal occupying lesions was mainly slow down and slow regression type.The contrast enhancement pattern between benign and malignant renal le-sions was statistically significant (P<0.05).According to the parameters of the time signal intensity curve,the peak time of renal malignant occupying lesions was significantly lower than that of the be-nign renal occupying lesions,which the difference was statistically significant (P<0.05).The sensi-tivity,specificity,positive predictive value,negative predictive value and accuracy of CEUS in the differential diagnosis of benign and malignant renal space occupying lesions were 71.4%,9 1.7%, 71.4%,91.7% and 87.1%,respectively. Conclusions CEUS can evaluate renal space occupying lesions without trauma and has high clinical potential.