CT Renal angiography - Normal

 3D volume rendering image showing normal bilateral renal arteries and aorta

Coronal curved multi planar reformatted image showing normal bilateral renal veins.

Renal arteries: 

• Single renal arteries bilaterally that originates from the abdominal aorta at the level of L3 below the origin of superior mesenteric artery. 
• It is important to identify the variants of the renal arteries.

Renal veins:

• Usually lies anterior to the renal artery at the renal hilum. 
• Left is 3 times longer than right. 
• Left – 6-10 cm length- courses anterior to aorta. 
• Right – 2-4 cm in length. The left renal vein receives left gonadal, left adrenal and left lumbar tributaries.