TABLE 4

Subjective and Objective Analysis of Image Quality

Scan time (min/bed position)Subjective score (0–3)Objective score (% noise)
11.3 ± 0.5*20.5 ± 7.5*
21.6 ± 0.7*16.4 ± 6.2*
32.0 ± 0.7*14.8 ± 5.3*
42.2 ± 0.7*13.9 ± 5.2
52.3 ± 0.713.3 ± 4.9
62.4 ± 0.712.4 ± 4.7
72.6 ± 0.610.9 ± 4.4
  • * P < 0.05 when compared with 7 min/bed position reference standard images.