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Updated: Aug 7, 2026

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Thermal Ablation for the Treatment of Abdominal Tumors
Published on: March 7, 2011
Transperineal radiofrequency interstitial tumor ablation (RITA) of the prostate
Summary
Radiofrequency interstitial tumor ablation (RITA) is a safe and feasible treatment for localized prostate cancer (PCa). This minimally invasive procedure creates predictable lesions with no observed complications, offering a promising option for PCa management.
Area of Science:
- Oncology
- Minimally Invasive Surgery
- Medical Technology
Background:
- Localized prostate cancer (PCa) requires effective and safe treatment options.
- Radiofrequency interstitial tumor ablation (RITA) is an emerging technique for tissue ablation.
- Assessing the safety, feasibility, and predictability of RITA in PCa is crucial.
Purpose of the Study:
- To evaluate the safety and feasibility of RITA for localized prostate cancer.
- To determine the predictability of lesion size and location created by RITA.
- To correlate intraoperative findings with histological examination.
Main Methods:
- 10 patients with localized PCa underwent RITA under various anesthesia types.
- Transperineal radiofrequency energy delivery guided by transrectal ultrasound (TRUS).
- Radical prostatectomy performed 1-7 days post-ablation for histological analysis.
Main Results:
- RITA created well-defined lesions with an average volume of 5.86 cm³.
- Histological examination confirmed coagulative necrosis within targeted lesion boundaries.
- No complications, including rectal wall injury, were reported; lesions remained within the prostatic capsule.
Conclusions:
- RITA is a safe, feasible, and technically simple procedure for localized prostate cancer.
- The technique allows for predictable lesion creation in terms of size and location.
- RITA can be effectively performed using spinal or local anesthesia, reducing patient burden.

