Use of Personalized Printed 3-Dimensional Kidney Models for Simulation before Nephron Sparing Surgery: Methodology...

Area of Science:

• Urology
• Medical Imaging
• 3D Printing Technology

Background:

• Nephron sparing surgery presents challenges with complex or aberrant renal anatomy.
• 3-Dimensional printing technology offers solutions for preoperative surgical planning and simulation.
• Personalized 3D kidney models can enhance visualization and planning for complex renal surgeries.

Purpose of the Study:

• To describe the construction of personalized 3D kidney models.
• To illustrate the use of these models in surgical planning and performance of complex nephron sparing surgery.
• To evaluate the utility of 3D models in managing complex renal anatomy.

Main Methods:

• Three patients with complex renal masses underwent contrast-enhanced CT scans.
• Virtual 3D models were created from segmentation images of CT scans.
• High-fidelity physical 3D kidney models were produced using 3D printing technology for surgical planning.

Main Results:

• Three patients with complex renal anatomy and T1b/T2 renal masses were treated.
• 3D kidney models facilitated evaluation of surgical feasibility and simulation of approaches.
• All patients successfully underwent nephron sparing surgery with negative margins and preserved renal function.

Conclusions:

• Personalized 3D kidney models enhance visualization of renal masses and anatomy.
• These models aid in identifying renal/tumor vasculature and evaluating aberrant anatomy.
• 3D models are valuable tools for preoperative planning and simulation in complex renal surgeries.