Ultrasound-guided percutaneous microwave ablation of renal neoplasms
10.3760/cma.j.issn.1004-4477.2009.01.018
- VernacularTitle:超声引导经皮微波消融治疗肾肿瘤
- Author:
Yang WANG
;
Ping LIANG
;
Xiaoling YU
;
Dahun ZHANG
;
Yongyan GAO
;
He REN
- Publication Type:Journal Article
- Keywords:
UItrasonography;
Kidney neoplasms;
Microwaves/therapeutic use
- From:
Chinese Journal of Ultrasonography
2009;18(1):52-54
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the safety and efficacy of ultrasound-guided percutaneous microwave ablation of renal neoplasms.Methods Twenty-two patients with pathologically proven renal neoplasms(18 renal cell carcinoma,3 renal angiomyolipoma,1 oncocytoma)with diameters of 1.0 to 3.8 cm were treated by microwave ablation.Cooled-shaft needle antenna was percutaneously inserted into the tumors under ultrasound guidance.One antenna was used for tumors less than 2 cm,two antennas were used for tumors larger than 2 cm.One thermal couple was placed adjacent to the tumor monitoring temperature in real-time during ablation.Immediate treatment efficacy was assessed by contrast-enhanced ultrasound within 3 days after ablation.Short-term efficacy was assessed by contrast-enhanced CT and/or contrast-enhanced ultrasound at 1,3,6 months and every 6 months thereafter.Results Twenty tumors were completely ablated in a single session,2 tumors were completely ablated in 2 sessions.No complications occurred.No residual tumor or recurrence was observed during follow-up.Conclusions Ultrasound-guided pereutaneous microwave ablation appears to be a safe and effective technique for the management of renal neoplasms in selected patients.
