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OBJECTIVE To assess the long-term oncologic efficacy of laparoscopic radical nephroureterectomy (RNU). METHODS Between August 1993 and May 2001, 39 patients underwent laparoscopic RNU for upper tract transitional cell carcinoma (TCC) at our institution. The medical records of these patients were retrospectively reviewed. RESULTS Clinical outcomes were(More)
The paper reports an important achievement in MRI instrumentation, a pneumatic, fully actuated robot located within the scanner alongside the patient and operating under remote control based on the images. Previous MRI robots commonly used piezoelectric actuation limiting their compatibility. Pneumatics is an ideal choice for MRI compatibility because it is(More)
OBJECTIVES The influence of surgical treatment of bladder outlet obstruction on sexual function is uncertain and available evidence is conflicting. Transurethral resection of the prostate (TURP) causes retrograde ejaculation, but its effect on erectile function is controversial. We have prospectively investigated the influence of TURP on erectile and(More)
The study was approved by the animal care and use committee. The purpose of the study was to prospectively establish proof of principle in vivo in canines for a magnetic resonance (MR) imaging-compatible robotic system designed for image-guided prostatic needle intervention. The entire robot is built with nonmagnetic and dielectric materials and in its(More)
PURPOSE To evaluate the safety and oncologic efficacy of extravesical laparoscopic stapling of the distal ureter and bladder cuff during nephroureterectomy for pelvicaliceal transitional-cell carcinoma (TCC). PATIENTS AND METHODS Patients with primary pelvicaliceal TCC and no history of TCC of the bladder or ureter who underwent extravesical laparoscopic(More)
The increasing popularity of robot-assisted radical prostatectomy has put the field of robotics in the spotlight. However, the relationship between medical robotics and the field of urology is older than most urologists know and it will most likely have a bright future beyond any contemporary application. The objective of this review is to provide an(More)
The paper presents a robotic method of performing low dose rate prostate brachytherapy under magnetic resonance imaging (MRI) guidance. The design and operation of a fully automated MR compatible seed injector is presented. This is used with the MrBot robot for transperineal percutaneous prostate access. A new image-registration marker and algorithms are(More)
OBJECTIVES To introduce the development of the first magnetic resonance imaging (MRI)-compatible robotic system capable of automated brachytherapy seed placement. METHODS An MRI-compatible robotic system was conceptualized and manufactured. The entire robot was built of nonmagnetic and dielectric materials. The key technology of the system is a unique(More)
PURPOSE Traditionally transperitoneal laparoscopic access to ureteropelvic junction obstruction has been performed in retrocolic fashion. We assessed transmesenteric laparoscopic pyeloplasty to correct ureteropelvic junction obstruction and compared results to those in patients undergoing traditional retrocolic laparoscopic pyeloplasty. MATERIALS AND(More)
OBJECTIVES To address the incidence of local recurrence and port site metastasis in patients who underwent laparoscopic radical nephroureterectomy (RNU) for upper tract transitional cell carcinoma (TCC). METHODS Between August 1993 and February 2006 116 laparoscopic RNU were performed in 115 patients at our institution. A traditional open excision, a(More)