Diagnostic value of double contrast-enhanced ultrasound in renal cystic lesions: a comparative study with enhanced magnetic resonance and intravenous pyelogram
10.3760/cma.j.cn131148-20211221-00939
- VernacularTitle:双重超声造影在肾囊性病变鉴别诊断中的价值：与增强磁共振和静脉肾盂造影的对比研究
- Author:
Lijing WANG
1
;
Di OU
;
Mingkui LI
;
Yiqing ZHANG
;
Dong XU
Author Information
1. 中国科学院大学附属肿瘤医院（浙江省肿瘤医院）超声医学科 中国科学院基础医学与肿瘤研究所，杭州 310000
- Keywords:
Contrast-enhanced ultrasound;
Renal cyst;
Sclerosing therapy;
Contrast media
- From:
Chinese Journal of Ultrasonography
2022;31(7):620-625
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the application value of dual contrast-enhanced ultrasound in the differential diagnosis of renal cystic lesions.Methods:Eighty-four cases with renal cysts who were diagnosed by routine ultrasound in Zhejiang Cancer Hospital and Zhejiang Xiaoshan Hospital from January 2019 to October 2020 were included in the study. Intravenous contrast-enhanced ultrasound and enhanced MRI were performed to differentiate benign and malignant cysts. Patients with benign cysts underuent intravenous pyelography and intracapsular contrast-enhanced ultrasound. Before sclerotheraphy to exclude renal pelvic cysts. The diagnostic results of dual radiography were compared with MRI and intravenous pyelography.Results:Among 84 patients with suspected renal cysts, the diagnostic accuracy of enhanced MRI for cystic renal cancer was 97.62%, and the sensitivity was 97.62%. The diagnostic accuracy of intravenous contrast-enhanced ultrasound was 98.81, the sensitivity was 100%, and the specificity was 98.73%. There was no statistically significant difference between the two groups (all P>0.05). 77 cases were diagnosed as benign renal cysts, the detection rate of intravenous pyelography was 9.1% (7/77), the detection rate of renal pelvic cysts by intracystic ultrasonography was 6.5% (5/77). With intravenous pyelography as the gold standard, the diagnostic accuracy of intracapsular contrast-enhanced ultrasound was 97.4% (75/77), the sensitivity was 71.4% (5/7), and the specificity was 100% (70/70). Conclusions:Compared with enhanced magnetic resonance and intravenous pyelography before renal cyst sclerosing therapy, there is no difference in diagnostic efficiency of double contrast ultrasound for benign and malignant cysts. The diagnostic efficiency of renal pelvic cysts is high, and the operation is convenient. It can identify cystic renal cancer and cysts from the renal pelvis and improve the safety of sclerotherapy.
