[The application value of contrast-enhanced ultrasound in the surgery of renal masses].

Objective To investigate the clinical value of contrast-enhanced ultrasound in the diagnosis of renal masses. Methods A total of 50 patients with renal masses who underwent partial nephrectomy were analyzed from January 2014 to October 2016 in the Department of Urology of China-Japan Union Hospital of Jilin University.In the intraoperative contrast-enhanced ultrasound, the characteristics of ultrasound imaging were recorded including location, size, boundary, echo, real-time internal and peripheral blood and renal pelvis distance, artery, guidance on the selection of surgical methods, intraoperative real-time estimation of the extent of tumor resection. Results In the 50 patients, there were 49 cases enhancement in the imaging of the cystic masses, 1 case had no enhancement.Contrast-enhanced ultrasound assisted clinical accurate positioning 34 masses which were in the renal contour and not convex.And 15 patients were found main arteries of renal occupied lesions.There were 38 cases whose distance from occupying to pelvis was more than 0.5 cm, and maintained the original operation scheme for partial nephrectomy.There were 12 cases whose distance from occupying to pelvis was less than 0.5 cm, and proceeded radical resection. Conclusions Intraoperative contrast-enhanced ultrasound can provide a more accurate imaging basis for the surgeon in partial nephrectomy.It′s of great significance for the correct choice of surgical procedures, and can reduce or avoid the occurrence of postoperative complications. Key words: Kidney neoplasms; Ultrasonography; Nephrectomy