A comparison analysis of contrast-enhanced ultrasonography and contrast-enhanced computed-tomography in the diagnosis of renal lesions

Objective:Compared contrast-enhanced ultrasound(CEUS) with contrast-enhanced CT(CECT) in diagnosis of renal lesions,this study was to evaluate the diagnostic value of contrast-enhanced ultrasound in renal lesions.Methods:A total of 54 patients underwent CEUS and CECT respectively.The diagnostic efficiency of two techniques were compared by evaluating features of different phase.Results:Of 54 renal lesions,34 lesions were malignant and 20 were benign.Overall,the diagnostic sensitivity,specificity,diagnostic accuracy,positive predictive value and negative predictive value were 97.05%,85.0%,92.59%,91.67%,94.44% for CEUS and 91.18%,80.00%,87.04%,88.57%,84.21% for CECT respectively.It was no significant statistical difference between two means(P0.05).Conclusion:There is no statistical difference in the diagnostic efficiency and the accuracy between CEUS and CECT in diagnosis of renal lesions.However,CEUS is better than CECT in diagnosis of abnormal renal structure and the microcirculation perfusion.The quantitative evaluation of renal tumor blood vessels by CEUS is still in animal experiments,the clinical stages of specific indexes remain for further research.