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Thermal Ablation for the Treatment of Abdominal Tumors
Published on: March 7, 2011
Cryoablation vs. radiofrequency ablation for small renal masses
Ali Pirasteh1, Laura Snyder, Nicholas Boncher
1Department of Radiology, University Hospitals Case Medical Center, Cleveland, OH 44106, USA.
Academic Radiology
|October 1, 2010
Summary
Cryoablation and radiofrequency ablation show similar recurrence rates for treating small renal masses. This study compared outcomes for patients undergoing these minimally invasive thermal ablation techniques for suspected kidney cancer.
Area of Science:
- Urology
- Oncology
- Medical Imaging
Background:
- Renal cell carcinoma is a lethal genitourinary tumor, with increasing incidental discoveries due to advanced imaging.
- Minimally invasive thermal ablation techniques, including cryoablation and radiofrequency ablation, are emerging therapies for small renal masses.
Purpose of the Study:
- To compare the recurrence rates of radiofrequency ablation (RFA) versus cryoablation (CA) in patients with suspected renal cell carcinoma.
- To evaluate the efficacy of image-guided thermal ablation for small renal masses.
Main Methods:
- A retrospective analysis of 111 patients who underwent percutaneous computed tomography-guided thermal ablation between 2006 and 2009.
- Comparison of imaging recurrence rates between patients treated with RFA (n=41) and CA (n=70).
Main Results:
- Cumulative imaging recurrence rates were 11% for RFA and 7% for CA.
- No statistically significant difference in imaging recurrence rates was observed between the two ablation groups (P = .6044).
Conclusions:
- Cryoablation offers comparable outcomes to radiofrequency ablation for treating small renal masses.
- Both minimally invasive techniques demonstrate similar efficacy in preventing tumor recurrence.
