“…The major disadvantages of CTA and MRA include cost, limited equipment availability and the need for general anesthesia. In cats, anatomical studies using helical CTA have been limited to the evaluation of maxillary artery blood flow with the mouth closed and opened [ 21 ], the cardiac chambers and walls [ 22 ], the coronary arteries [ 23 ], the stomach and small intestine [ 24 , 25 ], the liver [ 24 , 25 , 26 , 27 , 28 ], the pancreas [ 24 , 25 , 29 ] and the kidneys [ 24 , 25 , 30 , 31 , 32 ].…”