Virtual Interactive 3D Modelling to Improve Outcomes in Robotic-Assisted Partial Nephrectomy

Inclusion Criteria: * Patients with kidney tumours ≤ 7cm and planned robotic-assisted partial nephrectomy with the DaVinci Surgical System * CT scan with contrast medium available * Age ≥ 18 years * Written informed consent Exclusion Criteria: * History of surgery on affected kidney (e.g., partial nephrectomy, pyeloplasty, kidney cyst deroofing, percutaneous nephrolitholapaxy, radiofrequency ablation) * Clinical suspicion of metastases (stage cN1/cM1) * Horseshoe kidney * Previous malignancy with ongoing or planned nephrotoxic chemotherapy * Multifocal kidney tumour * Von Hippel-Lindau syndrome and other hereditary kidney cancer syndromes * Patient is immunosuppressed (e.g., organ transplantation, leukaemia) * Tumor thrombus in Vena renalis or Vena cava inferior * Severe cognitive impairment * Pregnancy or lactation or women with desire for children * Patients under legal supervision or guardianship * Unable to give informed consent or suspected lack of compliance * Patients who decline data collection and storage for the main study