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Table 1: Qualitative image assessment based on the 5-point Likert scale
Score Overall Image Quality Artifacts Tumor Sharpness Tumor Conspicuity
1 Nondiagnostic Nondiagnostic Nondiagnostic Mass unidentifiable
2 Substantial deficiency in image quality Marked impact on diagnosis Not sharp No differentiation between mass and vitreous
3 Moderate image quality Moderate impact on diagnosis Little sharp Subtle mass lesion
4 Good image quality Minimal impact on diagnosis Moderately sharp Well-seen mass lesion
5 Excellent image quality No artifact Good sharpness Very well-seen mass lesion

Score	Overall Image Quality	Artifacts	Tumor Sharpness	Tumor Conspicuity
1	Nondiagnostic	Nondiagnostic	Nondiagnostic	Mass unidentifiable
2	Substantial deficiency in image quality	Marked impact on diagnosis	Not sharp	No differentiation between mass and vitreous
3	Moderate image quality	Moderate impact on diagnosis	Little sharp	Subtle mass lesion
4	Good image quality	Minimal impact on diagnosis	Moderately sharp	Well-seen mass lesion
5	Excellent image quality	No artifact	Good sharpness	Very well-seen mass lesion