Publication:

3-dimensional model rendering and printing: enhanced visualisation for complex multi-compartment cases

Complex surgical oncology demands meticulous preoperative planning, particularly in multi-specialty surgeries. Aligning surgical objectives, considering factors such as surgical intent, approach feasibility and minimization of trauma, is crucial. While traditional imaging modalities like MRI and CT are invaluable for planning, the integration of 3D modelling can provide enhanced visualisation of patient-specific anatomy and pathology. A 3D model was generated from MRI scans using 3DSlicer® software for segmentation and MeshLab® for refinement. Structures such as the bladder, rectum and prostate were manually contoured. The model was printed using a Bambu® Lab A1 3D printer with PLA filament. The printed model informed surgical planning for a multidisciplinary team managing a 60-year-old man with advanced bladder cancer invading the rectum. The 3D model provided detailed spatial understanding of anatomical relationships, improving preoperative planning and intraoperative execution. The surgical procedure, including cystoprostatectomy and Hartmann’s procedure, was successful, with the 3D model providing guidance in the approach and enhancing collaboration among team members. The model’s contribution extended beyond visualisation. It optimized surgical strategy by aiding in delineation of the tumour and enhancing interdisciplinary communication. Its educational utility helped trainees & students grasp pelvic anatomy and surgical techniques. Limitations included time-intensive manual segmentation and reliance on high-resolution imaging. Future advancements, such as automated segmentation and augmented reality, could improve efficiency and intraoperative applicability. 3D modelling and printing proved valuable in managing a rare, complex surgical case, fostering interdisciplinary collaboration and improved patient care. Further research and development could broaden its adoption and impact in surgical practice.