Figure 6From: Single minimum incision endoscopic radical nephrectomy for renal tumors with preoperative virtual navigation using 3D-CT volume-rendering Comparison of tumor size and tumor location between patients with tumors smaller or larger than 4 cm in diameter. D-L means dorsal and lower pole tumors. D-U means dorsal and upper pole tumors. V-L means ventral and lower pole tumors. V-U means ventral and upper pole tumors. A: Spearman's rank correlation coefficients for the relation between tumor size and operating time. B: Spearman's rank correlation coefficients for the relation between tumor size and blood loss. C: Operating time. D: Blood loss. E: Operating time in relation to tumor location and size. F: Blood loss in relation to tumor location and size. Median values are shown in the box plots (C to F).Back to article page