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Table 2 Mean HU ± standard deviation (σ) per insert for the calibration and validation phantoms for 50 and 90 kVp

From: The impact of dual energy CT imaging on dose calculations for pre-clinical studies

Calibration phantom

Validation phantom

Material

Mean HU ± σ

Insert

Material

Mean HU ± σ

Insert

50 kVp

90 kVp

50 kVp

90 kVp

Air

−1000 ± 19

−1000 ± 13

7

Air

−1000 ± 17

−1000 ± 13

4, 9, 10

AP6

−248 ± 17

−173 ± 16

1

Paraffin

−281 ± 13

−178 ± 11

6

BR12

−171 ± 19

−115 ± 16

6

Adipose

−226 ± 16

−147 ± 13

11

SR2

−147 ± 18

−64 ± 15

4

BR12

−146 ± 16

−106 ± 13

1

Solid Water

−2 ± 22

−7 ± 20

2

PMMA

−73 ± 12

10 ± 11

5

Water

0 ± 22

0 ± 17

8

Water

−36 ± 15

−15 ± 12

7

LV1

69 ± 23

68 ± 20

10

Lucite

−31 ± 13

46 ± 12

3

IB3

729 ± 54

456 ± 38

3

Muscle

2 ± 14

25 ± 12

8

B200

768 ± 38

482 ± 31

9

Bone

2230 ± 29

1508 ± 22

12

CB2–30%

1297 ± 22

857 ± 16

5

    

CB2–50%

2483 ± 28

1632 ± 16

12

    

SB3

3723 ± 25

2448 ± 17

11