| Simulated Materials | CTN Minimum | CTN Maximum | Simulated Materials | CTN Minimum | CTN Maximum |
| Air | −1000 | −900 | BV-5 | 163 | 187 |
| Skin | −901 | 0 | BV-10 | 288 | 312 |
| Brain | 1 | 24 | BV-15 | 413 | 437 |
| Blood | 25 | 56 | BV-19 | 513 | 537 |
| BV-0.5 | 57 | 68 | BV-20 | 538 | 562 |
| BV-1 | 69 | 87 | Skull | 563 | 3095 |
| BV-2 | 88 | 112 |
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| BV-3 | 113 | 137 |
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| BV-4 | 138 | 162 |
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| BV stands for blood vessel | |||||