Second prize: preliminary experience with the Niris optical coherence tomography system during laparoscopic and...

Area of Science:

• Urology
• Surgical Technology
• Medical Imaging

Background:

• Radical prostatectomy (RP) for prostate cancer necessitates precise identification of neurovascular bundles (NVBs) to preserve erectile function.
• Laparoscopic and robotic radical prostatectomy (LRP) present unique visualization challenges for delicate surgical structures like NVBs.

Purpose of the Study:

• To assess the feasibility of using high-resolution optical coherence tomography (OCT) for identifying NVBs during LRP.
• To determine if OCT imaging can aid surgeons in achieving adequate nerve sparing during radical prostatectomy.

Main Methods:

• A prospective study involving 24 patients undergoing LRP between November 2005 and March 2006.
• The Niris imaging system was used to acquire in-vivo and ex-vivo OCT images of the prostate and surrounding tissues.
• OCT images were correlated with surgical assessment of nerve sparing and preliminary histologic findings.

Main Results:

• Over 300 OCT images of various tissue structures, including NVBs, prostate capsule, and endopelvic fascia, were obtained.
• OCT images demonstrated a strong correlation with the surgeon's intraoperative assessment of tissue identity.
• Preliminary analysis suggested OCT's utility in identifying NVBs and the prostate capsule during LRP.

Conclusions:

• OCT imaging with the Niris system proved feasible for visualizing NVBs in all patients during LRP.
• This technology has the potential to enhance surgical precision, improve nerve-sparing techniques, and positively influence post-prostatectomy potency rates.
• Further research, including histologic correlation and long-term follow-up, is required to validate these preliminary findings.