Qualitative Diagnostic Value of Contrast-enhanced Ultrasound in Different Pathological Types of Renal Solid Tumors
ObjectiveToobserve the perfusion characteristics of renal solid tumors of different pathological types by contrast-enhanced ultrasound and explore its qualitative diagnostic value.Methods The ultrasonographic features of 415 cases of renal solid tumors(CEUS)were analyzed retrospectively.According to the pathological results,they were divided into benign and malignant groups.The benign group included renal angiomyolipoma(RAML)and renal eosinophilia(RO).Malignant group includes renal clear cell carcinoma(CCRCC),renal papillary cell carcinoma(PRCC)and renal chromophobe cell carcinoma(ChRCC)subgroups.Single factor analysis is better.Whether there is statistical difference in CEUS characteristics between malignant groups and within malignant groups,multivariate Logistic regression analysis is performed on the variables with statistical significance to compare their diagnostic values.Results There were significant differences between benign and malignant groups in the enhancement mode,enhancement degree,annular high enhancement and unenhanced area(P<0.05).The malignant group showed fast-forward(196/333,58.86%),high enhancement(174/333,52.25%),annular high enhancement(225/333,67.57%)and non-enhanced area(236/333,70.87%),while the benign group showed equal progress.There were significant differences in the enhancement mode and degree of lesions in malignant groups(P<0.05).CCRCC showed fast forward(166/284,58.45%)and high enhancement(171/284,60.21%),while PRCC and ChRCC showed slow forward(30/49,61.38%)and low enhancement(32/49,65.31%).Conclusion Contrast-enhanced ultrasound can show the blood perfusion characteristics of tumors,which can provide important reference value for the diagnosis of different pathological types of renal tumors.