Table 1 Overview on image acquisition and image reconstruction parameters
From: Dose development in sinonasal imaging over the last decade – a retrospective patient study
Image acquisition | Image reconstruction | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CT Scanner | Detector | Acquisition year | Tin filtration | Tube voltage (kV) | Tube current (mAs) | Collimation (mm) x number of slices | Pitch | Rotation time (1/s) | Automatic tube current modulation | Reconstruction method | Slice thickness (mm) | Increment | Kernel | ||||
Chronic sinusitis | |||||||||||||||||
Somatom Definition AS 64 (DS 2 × 64) | Ultra fast ceramic | 2010–2011 | - | 120 | 25 | 0.6 × 32 | 1 | 1 | - | FBP | 1 | 1 | H60s | ||||
2012–2014 | - | 120 | 25 | 0.6 × 32 | 1 | 1 | - | IRIS | 1 | 1 | J70h | ||||||
2015–2016 | - | 120 | 20 | 0.6 × 32 | 1 | 1 | - | SAFIRE | 1 | 1 | H50s | ||||||
Somatom Definition AS + 128 (SS 128) | Ultra fast ceramic | 2011–2013 | - | 100 | 35 | 0.6 × 64 | 0.8 | 1 | - | FBP | 1 | 1 | H60s | ||||
2014–2022 | - | 100 | 25 | 0.6 × 64 | 0.8 | 1 | - | SAFIRE | 1 | 1 | J70h | ||||||
Somatom Force (DS 2 × 192) | Stellar Infinity | 2016 | X | 100 | Ref. 90 | 0.6 × 96 | 0.8 | 0.5 | X | ADMIRE | 2 | 1 | Hr64d | ||||
2016–2019 | X | 100 | 50 | 0.6 × 96 | 0.6 | 0.5 | - | ADMIRE | 1 | 1 | Hr64d | ||||||
2020–2022 | X | 100 | 125 | 0.6 × 192 | 0.8 | 1 | - | ADMIRE | 1 | 1 | Hr64d | ||||||
3D Accuitomo 170 | 2015–2017 | - | 90 | 5–9 | - | - | 9–17 | - | - | 0.5 | - | - | |||||
Preoperative | |||||||||||||||||
Somatom Definition AS 64 (DS 2 × 64) | Ultra fast ceramic | 2010–2011 | - | 120 | 30 | 0.6 × 32 | 0.9 | 1 | - | FBP | 1 | 1 | H60s | ||||
2012–2014 | - | 120 | 30 | 0.6 × 32 | 0.8 | 1 | - | IRIS | 1 | 1 | J70h | ||||||
2015–2016 | - | 120 | 30 | 0.6 × 32 | 0.9 | 1 | - | SAFIRE | 1 | 1 | H70h | ||||||
Somatom Definition AS + 128 (SS 128) | Ultra fast ceramic | 2011–2013 | - | 100 | 30 | 0.6 × 64 | 0.8 | 1 | - | FBP | 1 | 1 | H60s | ||||
2014–2022 | - | 100 | 25 | 0.6 × 64 | 0.8 | 1 | - | SAFIRE | 1 | 1 | J70h | ||||||
Somatom Force (DS 2 × 192) | Stellar Infinity | 2016 | - | 120 | Ref. 63 | 0.6 × 96 | 0.8 | 1 | X | ADMIRE | 1 | 0.75 | Hr64h | ||||
2016–2019 | - | 100 | 25 | 0.6 × 96 | 0.8 | 1 | - | ADMIRE | 1 | 0.75 | Hr64h | ||||||
2020–2022 | X | 100 | Ref. 250 | 0.6 × 192 | 0.8 | 1 | X | ADMIRE | 1 | 1 | Hr64h | ||||||
Posttraumatic | |||||||||||||||||
Somatom Definition AS 64 (DS 2 × 64) | Ultra fast ceramic | 2010–2011 | - | 120 | 100 | 0.6 × 32 | 1 | 1 | - | FBP | 1 | 1 | H60s | ||||
2012–2014 | - | 120 | 100 | 0.6 × 32 | 1 | 1 | - | IRIS | 1 | 1 | J70h | ||||||
2015–2016 | - | 120 | 70 | 0.6 × 32 | 1 | 1 | - | SAFIRE | 1 | 1 | H70h | ||||||
Somatom Definition AS + 128 (SS 128) | Ultra fast ceramic | 2011–2013 | - | 100 | 125 | 0.6 × 64 | 0.8 | 1 | - | FBP | 1 | 1 | H60s | ||||
2014–2022 | - | 100 | 100 | 0.6 × 64 | 0.8 | 1 | - | SAFIRE | 1 | 1 | J70h | ||||||
Somatom Force (DS 2 × 192) | Stellar Infinity | 2016 | - | 120 | Ref. 88 | 0.6 × 96 | 0.8 | 1 | X | ADMIRE | 2 | 1 | Hr64h | ||||
2016–2019 | - | 100 | 100 | 0.6 × 96 | 0.8 | 1 | - | ADMIRE | 1 | 1 | Hr64h | ||||||
2020–2022 | X | 100 | 600 | 0.6 × 192 | 0.8 | 1 | - | ADMIRE | 1 | 1 | Hr64h | ||||||