Endoscopic laser ablation of the prostate: MR appearances during and after treatment and their relation to clinical outcome

AJR. American Journal of Roentgenology
N M deSouzaE A Kiely

Abstract

Endoscopic laser ablation is a new treatment for benign prostatic hypertrophy. The objectives of this study were to determine the appearances of the prostate on MR images obtained during, 1 week after, and 3 months after this procedure and to determine if a correlation exists between the MR findings and the clinical outcome. Such appearances could then be used to guide the application of laser energy during the procedure in order to optimize the clinical result. Eight consecutive men 58-74 years old with symptoms of bladder outflow obstruction caused by benign prostatic hypertrophy underwent endoscopic laser ablation of the prostate under spinal or epidural anaesthesia. Imaging was done on a 0.5-T Picker Asset system with an endorectal receiver coil and conventional T1-weighted spin-echo, T2-weighted spin-echo, and gradient-recalled-echo sequences. T1-weighted magnetization transfer images were obtained in three patients. Images were obtained preoperatively, after ablation of the left-sided quadrants, immediately after completion of the procedure, and 1 week and 3 months later. Preoperative and 3-month postoperative symptom scores, peak urine flow rates, and bladder residual volumes were studied. Images were visually assessed f...Continue Reading

Citations

Apr 1, 1996·European Journal of Cancer : Official Journal for European Organization for Research and Treatment of Cancer (EORTC) [and] European Association for Cancer Research (EACR)·W L Curati, G M Bydder
Dec 20, 1999·Seminars in Roentgenology·E S Siegelman
Dec 20, 1999·Seminars in Roentgenology·P Ramchandani
Aug 8, 2007·IEEE Transactions on Medical Imaging·Viola RiekeKim Butts Pauly
Apr 8, 1998·The Urologic Clinics of North America·T Z WongF A Jolesz
Jun 2, 2004·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Viola RiekeKim Butts
Nov 26, 1999·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·S J GrahamR M Henkelman

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