Table 5 Summary of published data on PET/CT parameters and patient effective dose for 18FDG whole body oncological studies
From: Effective dose estimation for oncological and neurological PET/CT procedures
Reference | Scan length as per this study | Study from | Study to | Comment or CT description | Tube current mAs or mA and s | AEC | CTDIvol (mGy) | DLP (mGy cm) | ED_CT (mSv) | Activity (MBq) | ED_PET (mSv) |
|---|---|---|---|---|---|---|---|---|---|---|---|
[7] | Torso | Base of the skull | Upper-thigh | Impact of AEC | 100–300 mA and 0.5 s | Yes | – | – | 7.2 | 370 | 6.23 |
250 mA and 0.5 s | No | 18.6 | |||||||||
[36] | Torso | Base of the skull | Upper-thigh | TAI patients | 112 mAs | Yes | – | – | 14.4 ± 2.8 | 312 ± 43 | 4.4 ± 0.6 |
[22] | Torso | Base of the skull | Mid-thighs | Standard CT | 39 mAs | Yes | – | 438 ± 85 | 5.0 ± 1.0 | 450 ± 32 | 9.0 ± 1.6 |
Diagnostic CT | 120 mAs | 1050 ± 342 | 15.4 ± 5.0 | ||||||||
[30] | H&Torso | Head | Mid-thighs | Initial CT | – | Yes | 6.4 ± 2.4 | 537 ± 222 | 8.1 ± 3.3 | – | – |
Optimized CT | 4.3 ± 1.6 | 368 ± 145 | 5.5 ± 2.1 | ||||||||
[20] | H&Torso | Top of the skull | Mid-thighs | Most frequent CT | 110 mA and 0.8 s | – | 4.3 | 434 | 7.5 | 336 ± 49 | 5.6 |
Special CT | 250 mA and 0.5 s | 6.0 | 616 | 10.95 | |||||||
Special CT | 300 mA and 0.5 s | 7.2 | 732 | 13.2 | |||||||
[8] | H&Torso | Vertex | Mid-thighs | – | 80 mAs | Yes | – | – | 8.2 | 304 ± 45 | 6.3 ± 1.2 |
[21] | H&Torso | Head | Pelvis | High-quality CT | 80 mA and 0.8 s | – | – | – | 19.0 | – | – |
High-speed CT | 8.8 | ||||||||||
[9] | H&Torso | Head | Mid-thighs | Center 1 | 84 mA and 0.5 s | Yes | 5.9 ± 1 | 591 ± 130 | 7. 8 | 258 ± 56 | 4.9 |
Center 2 | – | Yes | 5.4 ± 2 | 575 ± 248 | 7.7 | 313 ± 73 | 5.9 | ||||
WB | Head | Feet | Center 1 | 89 mA & 0.5 s | Yes | 6.2 ± 1.4 | 1112 ± 285 | 9.4 | 258 ± 56 | 4.9 | |
Center 2 | – | Yes | 3.7 ± 1 | 620 ± 166 | 5.9 | 313 ± 73 | 5.9 | ||||
[23] | – | – | Symphysis | Low-dose CT | – | – | 1–2.9 | – | 1.3–4.5 | 300–370 | 5.7–7 |
Contrast-enhanced CT | 9.5–14.1 | – | 14.1–18.6 | ||||||||
This study | Torso | Base of the skull | Mid-thighs | – | 120 mAs | Yes | 6.3 | 557 | 10.3 | 323 | 6.1 ± 1.2 |
HNT | Vertex | Mid-thighs | – | 4.9 + 5.4 | 187 + 429 | 9.7 ± 2.2 | 299 ± 43 | 5.7 ± 0.8 | |||
WB | Head | Feet | – | 7.9 + 3.3 | 776 + 307 | 14.0 ± 4.9 | 321 ± 71 | 6.1 ± 1.3 |