Table 5.

The mean and standard-deviation values of motion scores (in mm) obtained for 17 individual segments with OS-EM reconstruction, as in Table 4 for FBP reconstruction

LV segment	100% Dose	50% Dose	25% Dose	12.5% Dose
1	10.28 ± 2.26	10.15 ± 2.27	10.19 ± 2.26	9.83 ± 2.61
2	6.12 ± 2.45	6.18 ± 2.50	6.22 ± 2.48	6.38 ± 2.82
3	4.99 ± 2.55	5.01 ± 2.54	4.98 ± 2.52	4.78 ± 2.75
4	7.23 ± 2.50	7.18 ± 2.69	7.11 ± 2.77	6.84 ± 2.96 (P < 0.01)
5	9.99 ± 2.48	9.90 ± 2.61	9.86 ± 2.68	9.38 ± 2.82 (P < 0.01)
6	11.24 ± 2.27	11.20 ± 2.33	11.18 ± 2.27	10.56 ± 2.63 (P < 0.01)
7	9.12 ± 2.20	8.99 ± 2.31	9.06 ± 2.46	8.77 ± 2.79
8	6.40 ± 2.51	6.38 ± 2.56	6.42 ± 2.66	6.40 ± 2.95
9	5.04 ± 2.55	5.07 ± 2.68	5.10 ± 2.75	5.01 ± 2.84
10	6.65 ± 2.50	6.66 ± 2.56	6.71 ± 2.63	6.57 ± 2.93
11	9.07 ± 2.13	9.02 ± 2.29	8.99 ± 2.24	8.74 ± 2.47
12	9.24 ± 2.10	9.22 ± 2.22	9.23 ± 2.38	9.22 ± 2.64
13	7.36 ± 2.42	7.32 ± 2.42	7.38 ± 2.47	7.55 ± 2.94
14	5.50 ± 2.84	5.49 ± 2.74	5.52 ± 2.83	5.59 ± 3.01
15	7.11 ± 2.63	7.14 ± 2.64	7.20 ± 2.70	7.07 ± 2.96
16	8.44 ± 2.48	8.44 ± 2.50	8.48 ± 2.58	8.67 ± 2.79
17	7.31 ± 2.84	7.33 ± 2.91	7.35 ± 3.02	7.57 ± 3.41

Statistical P values are given in italics

Post hoc ANOVA with correction for multiple comparisons indicates statistically significant differences between 12.5% dose and 100% dose in segments #4, #5, and #6, but not other segments