Table 3.

Scoring Criteria for Delineation of Anatomical Structures

Score	Renal Arteries	Liver	Portal Veins	Hepatic Veins	Pancreas	Adrenals	Spine
1 (Non-diagnostic)	Poorly seen	Lesions larger than 2 cm can be assessed	Central portal vein can not be assessed	Central hepatic vein can not be assessed	Heterogeneous signals and contours not defined	Adrenals can not be assessed	Vertebrae from disc can not be separated
2 (Limited)	Seen but not confident for stenosis assessment	Lesions larger than 5mm can not be assessed	Left or right portal vein can not be assessed	Left, right and middle hepatic veins can be seen	Homogenous signals or contours defined	Margins and mass of adrenals can be seen but not confident	Most of the vertebrae or disc can be seen
3 (Diagnostic)	Confident in the margins of renal artery and accessory renal arteries	Some lesions larger than 5mm can be assessed	Both left and right portal vein can be assessed	Branch hepatic veins can be seen	Homogenous signals and contours defined	margins and mass of adrenals can be seen	Most of the vertebrae and disc can be seen
4 (Good)	First order branches of renal arteries are sharply delineated	All lesions larger than 5mm can be assessed	Some second order branches can be assessed	Branch hepatic veins can be seen sharply	Homogenous signals; contours defined; Pancreatic duct partly seen	Most of the margins are clearly defined	All the vertebrae and disc can be seen
5 (Excellent)	Up to second order branches of renal arteries are sharply delineated	Lesions larger than 2mm can be assessed	All second order branches can be assessed	Branch hepatic veins to within 1 cm of capsule can be seen	Can see entire pancreatic duct (from tail to ampulla)	All the margins are well defined	All the vertebrae and disc can be seen; growth plate sharply defined
6 (Outstanding)	-	-	Vessels to within 1 mm of capsule can be assessed	-	-	-	-