Figure 1From: Visceral to total obesity ratio and severe hydronephrosis are independently associated with prolonged pneumoperitoneum operative time in patients undergoing laparoscopic radical nephroureterectomy for upper tract urothelial carcinomaGraphics showing a method for determining the degree of fat distribution on computed tomography. a Area inside the red line is total fat area (TFA). b Area inside the red line is visceral fat area (VFA).Back to article page