Table 2.

Scoring criteria for image analysis

Parameter	Score
	1	2	3	4
Liver edge sharpness Hepatic vessel conspicuity	Not delineated	Moderate blurring	Good delineation	Sharpest border
Bile duct conspicuity	Not delineated	Part or entire biliary system was shown with blurry margin	2nd-order branch was delineated with blurry margin or 1st-order branch was delineated with clear margin	1st- and 2nd-order branches were well delineated with clear margin
Respiratory motion artifact Cardiac ghosting artifact Ringing artifact	Severe artifacts causing impaired diagnostic capability of the readers	Moderate artifacts without diagnostic performance impairment	Mild artifacts without significant image quality disturbance	No or only minimal artifacts
Perceived SNR	Poor SNR (non-diagnostic)	Moderate SNR	Good SNR	Excellent SNR
Subjective noise level	Marked noise level	Moderate noise level	Mild noise level	Negligible noise level
Synthetic appearance	Severe synthetic appearance	Moderate synthetic appearance	Mild synthetic appearance	No synthetic appearance
Overall artifact level	Poor	Fair	Good	Excellent
Overall image quality	Poor	Fair	Good	Excellent
Lesion conspicuity	Poor delineation (not visible)	Fair delineation	Good delineation	Excellent delineation

SNR signal–noise ratio