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Table 4 The 10 designs generating the lowest p values for the whole lung

From: Optimisation of quantitative lung SPECT applied to mild COPD: a software phantom simulation study

Order of rank

Kernel edge length (cm)

Number of iterations (updates)

Cutoff frequency (cm −1 )

p value

1

1.0

4 (64)

0.6

4.1 × 10−13

2

1.0

4 (64)

0.7

6.2 × 10−13

3

1.0

6 (96)

0.6

7.9 × 10−13

4

1.0

2 (32)

0.7

9.4 × 10−13

5

1.0

6 (96)

0.5

1.5 × 10−12

6

1.0

6 (96)

0.7

2.8 × 10−12

7

1.7

4 (64)

0.7

3.0 × 10−12

8

1.0

2 (32)

0.6

3.7 × 10−12

9

1.0

2 (32)

Unfiltered

4.2 × 10−12

10

1.0

8 (128)

0.6

4.5 × 10−12

  1. All designs use LEHR collimator and 125 MBq.