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Table 3: 

Subjective image quality by tube current and body AP diameter


Image Quality ScoreP Value
0III
Tube current (mA).76
    Low (≤40)6 (23)4 (15)16 (62)
    Medium (40–80)4 (12)8 (25)20 (63)
    High (>80)2 (12)4 (25)10 (63)
AP diameter (cm).001
    Large (>30)7 (39)7 (39)4 (22)
    Medium (20–30)5 (10)9 (17)38 (73)
    Small (<20)004 (100)
  • 

    Note:—The χ2 test was used to evaluate differences in image quality score in categories of tube current and body AP diameter. Numbers in parentheses are row percentages.