Does Utilizing IRIS, a Segmented Three-dimensional Model, Increase Surgical Precision During Robotic Partial...

Area of Science:

• Urology
• Surgical Oncology
• Medical Imaging

Background:

• Partial nephrectomy is crucial for renal parenchyma preservation in kidney cancer treatment.
• Complex renal tumors pose challenges to precise surgical resection.
• Advanced visualization tools are needed to improve surgical accuracy.

Purpose of the Study:

• To evaluate the impact of IRIS anatomical visualization software on surgical precision during partial nephrectomy for complex renal tumors.
• To determine if IRIS software enhances the preservation of renal parenchyma.

Main Methods:

• A comparative study involving patients undergoing partial nephrectomy for complex tumors (nephrometry scores 9-11).
• Patients were divided into IRIS (n=19) and non-IRIS (n=74) groups, with 18 pairs matched using propensity scores.
• Pre- and postoperative kidney volumes were measured using MRI/CT to assess surgical precision and tissue preservation.

Main Results:

• The IRIS group showed a significantly smaller mean difference between predicted and actual postoperative whole kidney volumes (19.2 cm³ vs 32 cm³, P=.0074), indicating improved precision.
• Mean improvement in precision for the IRIS procedure was 12.8 cm³ (P=.02).
• No significant differences were observed in postoperative renal function (GFR) or complication rates between the groups.

Conclusions:

• Intraoperative use of IRIS anatomical visualization software is associated with improved surgical precision in partial nephrectomy for complex renal tumors.
• IRIS software facilitates better visualization, potentially enhancing outcomes in kidney-sparing surgery.
• Further research may explore long-term functional benefits and broader applications of this technology.