Comparison between helical computed tomography angiography and intraoperative findings

Area of Science:

• Nephrology
• Radiology
• Transplant Surgery

Background:

• Laparoscopic donor nephrectomy is increasingly popular but technically demanding.
• Precise understanding of renal vascular and morphological anatomy is essential for surgical success.
• Helical CT angiography aids in preoperative anatomical assessment, though occasional discrepancies exist.

Purpose of the Study:

• To compare helical CT angiography findings with intraoperative observations in live kidney donors.
• To evaluate the diagnostic accuracy of CT in depicting renal anatomy for laparoscopic procedures.

Main Methods:

• A study involving 200 live donors undergoing laparoscopic transperitoneal donor nephrectomy.
• Comparison of preoperative helical CT angiography results with intraoperative findings.
• Statistical analysis using the Chi-square test.

Main Results:

• Helical CT findings (axial, coronal, 3D) largely correlated with intraoperative observations.
• Incidental findings on CT facilitated better surgical planning.
• Anatomical variations, including multiple vessels and ureteral duplication, were more common in left-sided donors and males.
• CT indicated more renal vein variations on the right side.

Conclusions:

• Helical CT angiography is vital for delineating renal arterial, venous, and ureteral anatomy.
• It effectively identifies incidental findings crucial for surgical planning.
• Anatomical variations are prevalent in left renal donors and males.
• Helical CT supports technically challenging laparoscopic donor nephrectomies, enhancing transplant outcomes.