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World Journal of Urology

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01-12-2014 | Original Article

Surgical planning and manual image fusion based on 3D model facilitate laparoscopic partial nephrectomy for intrarenal tumors

Authors: Yuanbo Chen, Hulin Li, Dingtao Wu, Keming Bi, Chunxiao Liu

Published in: World Journal of Urology | Issue 6/2014

Abstract

Purpose

Construction of three-dimensional (3D) model of renal tumor facilitated surgical planning and imaging guidance of manual image fusion in laparoscopic partial nephrectomy (LPN) for intrarenal tumors.

Materials and methods

Fifteen patients with intrarenal tumors underwent LPN between January and December 2012. Computed tomography-based reconstruction of the 3D models of renal tumors was performed using Mimics 12.1 software. Surgical planning was performed through morphometry and multi-angle visual views of the tumor model. Two-step manual image fusion superimposed 3D model images onto 2D laparoscopic images. The image fusion was verified by intraoperative ultrasound. Imaging-guided laparoscopic hilar clamping and tumor excision was performed. Manual fusion time, patient demographics, surgical details, and postoperative treatment parameters were analyzed.

Results

The reconstructed 3D tumor models accurately represented the patient’s physiological anatomical landmarks. The surgical planning markers were marked successfully. Manual image fusion was flexible and feasible with fusion time of 6 min (5–7 min). All surgeries were completed laparoscopically. The median tumor excision time was 5.4 min (3.5–10 min), whereas the median warm ischemia time was 25.5 min (16–32 min). Twelve patients (80 %) demonstrated renal cell carcinoma on final pathology, and all surgical margins were negative. No tumor recurrence was detected after a media follow-up of 1 year (3–15 months).

Conclusions

The surgical planning and two-step manual image fusion based on 3D model of renal tumor facilitated visible-imaging-guided tumor resection with negative margin in LPN for intrarenal tumor. It is promising and moves us one step closer to imaging-guided surgery.

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Title: Surgical planning and manual image fusion based on 3D model facilitate laparoscopic partial nephrectomy for intrarenal tumors
Authors: Yuanbo Chen
Hulin Li
Dingtao Wu
Keming Bi
Chunxiao Liu
Publication date: 01-12-2014
Publisher: Springer Berlin Heidelberg
Published in: World Journal of Urology / Issue 6/2014
Print ISSN: 0724-4983
Electronic ISSN: 1433-8726
DOI: https://doi.org/10.1007/s00345-013-1222-0

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Surgical planning and manual image fusion based on 3D model facilitate laparoscopic partial nephrectomy for intrarenal tumors

Abstract

Purpose

Materials and methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Materials and methods

Results

Conclusions

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