Table 3 PET scan parameters and CT exposure parameters for each protocol
From: Effective dose estimation for oncological and neurological PET/CT procedures
Diagnostic protocol | No. of patients | Activity (MBq) | Number of bed positions Median, % | CT part | Effective tube current-time product (mAs) | CTDIvol (mGy) | DLP (mGy cm) |
|---|---|---|---|---|---|---|---|
Torso-11C-CHOL | 10 | 695 ± 44 | 6, 80% | Torso | 89 ± 17 (57, 113) | 6.5 ± 1.3 (4.2, 8.3) | 562 ± 120 (317, 729) |
Torso-18FDG | 113 | 323 ± 63 | 6, 66% | Torso | 87 ± 27 (35, 227) | 6.3 ± 1.9 (3.8, 17.0) | 557 ± 208 (287, 1876) |
WB-18FDG | 36 | 321 ± 71 | 7, 44% | H&Torso | 109 ± 35 (55, 192) | 7.9 ± 2.6 (4.0, 14.0) | 776 ± 294 (336, 1049) |
7, 53% | Limbs | 44 ± 14 (26, 94) | 3.3 ± 1.0 (1.9, 6.9) | 307 ± 104 (170, 693) | |||
HNT-18FDG | 10 | 299 ± 43 | 5, 70% | Trunk | 74 ± 16 (54, 106) | 5.4 ± 1.2 (3.9, 7.8) | 429 ± 109 (300, 684) |
2, 100% | H&N | 67 ± 14 (44, 46) | 4.9 ± 1.0 (3.2, 6.3) | 187 ± 38 (123, 237) | |||
Brain-18FDG | 11 | 296 ± 33 | 1, 100% | Brain | 84 ± 7 (74, 96) | 13.1 ± 1.0 (11.6, 15.0) | 302 ± 30 (247, 349) |
Brain-18FDOPA | 10 | 159 ± 19 | 1, 100% | Brain | 72 ± 5 (65, 80) | 11.6 ± 1.4 (10.2, 15.0) | 271 ± 32 (237, 349) |
Brain-11C-MET | 10 | 453 ± 96 | 1, 100% | Brain | 137 ± 12 (115, 155) | 20.4 ± 1.9 (17.9, 24.1) | 508 ± 45 (419, 564) |
Brain-18F-florbetapir | 10 | 378 ± 13 | 1, 100% | Brain | 268 ± 25 (239, 321) | 39.0 ± 3.8 (37.3, 50.0) | 973 ± 89 (870, 1167) |