Table 1 Overview of the imaging statistics of the CT scans within our collection, including parameters and steps used during pre-processing.

From: Synthetic skull bone defects for automatic patient-specific craniofacial implant design

Patient

Number of Slices

Inplane Resolution (mm2)

Slice Thickness (mm)

Cropping (yes/no)

Threshold (HU)

Manual post-processing (yes/no)

whole

cropped

1

490

87

0.98 × 0.98

2.00

yes

150

yes (artifact removal)

2

244

124

0.98 × 0.98

1.25

yes

150

yes (hole filling)

3

350

148

0.59 × 0.59

1.00

yes

200

yes (smoothing)

4

327

51

0.98 × 0.98

3.27

yes

150

yes (hole filling)

5

286

129

0.98 × 0.98

1.25

yes

150

yes (hole filling)

6

227

123

0.98 × 0.98

1.25

yes

150

no

7

268

144

0.59 × 0.59

1.00

yes

150

yes (hole filling)

8

201

135

0.98 × 0.98

1.25

yes

200

yes (smoothing)

9

175

83

0.98 × 0.98

2.00

yes

150

no

10

327

49

0.98 × 0.98

3.27

yes

150

no

11

47

47

0.98 × 0.98

3.27

no

150

yes (hole filling)

12

242

149

0.41 × 0.41

1.00

yes

150

yes (smoothing)

13

160

124

0.43 × 0.43

1.00

yes

150

yes (hole filling)

14

287

160

0.59 × 0.59

1.00

yes

200

yes (smoothing)

15

231

161

0.46 × 0.46

1.00

yes

200

yes (smoothing)

16

147

101

0.50 × 0.50

1.50

yes

150

yes (hole filling)

17

161

154

0.43 × 0.43

1.00

yes

150

yes (hole filling)

18

318

210

0.49 × 0.49

0.75

yes

150

yes (hole filling/artifact removal)

19

136

78

0.42 × 0.42

2.00

yes

150

yes (smoothing)

20

232

159

0.51 × 0.51

1.00

yes

150

yes (smoothing)

21

168

112

0.46 × 0.46

1.50

yes

200

no

22

200

155

0.46 × 0.46

1.00

yes

150

no

23

110

77

0.45 × 0.45

2.00

yes

150

yes (hole filling)

24

298

195

0.47 × 0.47

0.75

yes

150

yes (smoothing)