Percutaneous ultrasound-guided radiofrequency electrocautery ablation of prostate tissue in dogs.
OBJECTIVE
We investigated the feasibility of percutaneous radiofrequency (RF) electrocautery in ablation of prostate tissue in dogs.


METHODS
We used six dogs in whom a specially designed needle was placed percutaneously into the prostate. RF electrocautery was applied to the needle and treatment was monitored with ultrasound. Animals were sacrificed and gross examination of the prostate and surrounding tissues was performed. Histopathologic examinations of the prostate were also performed.


RESULTS
The treatment zone appeared as an elliptical echogenic focus on ultrasound that increased in size with the application of current. Gross and histopathologic correlation demonstrated that the treatment area included a central area of char with a surrounding area of coagulation. There were no deleterious effects to surrounding tissues.


CONCLUSIONS
Our results demonstrate the feasibility of percutaneous ultrasound-guided RF electrocautery ablation of canine prostate tissue.
McGahan
J P
JP
Department of Radiology, University of California-Davis, Medical Center, Sacramento 95817, USA.
Griffey
S M
SM
Budenz
R W
RW
Brock
J M
JM
D000818:Animals; D017115:Catheter Ablation / Q000295:instrumentation / Q000379:methods*; D004195:Disease Models, Animal; D004285:Dogs; D008297:Male; D011467:Prostate / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D011471:Prostatic Neoplasms / Q000601:surgery; D011846:Radio Waves; D014463:Ultrasonography