TABLE 2.
Evaluated Algorithms | ADMIRE | AIDR3D/AiCE | ASiR/ASiR‐V | PixelShine | SAFIRE | TrueFidelity | iDose |
---|---|---|---|---|---|---|---|
Phantom | ACR | Catphan | ACR | ACR | ACR | ACR | ACR |
Scanner | |||||||
Vendor | Siemens | Canon | GE | GE | Siemens | GE | Philips |
Scanner Model | SOMATOM Force | Aquilion ONE | Revolution HD | Revolution HD | Biograph 64 | Revolution CT | iCT 256 |
Acquisition Conditions | |||||||
Scan Mode | Helical | Helical | Helical | Helical | Helical | Helical | Helical |
Revolution Time | 1 s | 1 s | 0.8 s | 0.8 s | 1 s | 1 s | 0.4 s |
Total Collimation Width | 57.6 mm | 40 mm | 40 mm | 40 mm | 19.2 mm | 40 mm | 40 mm |
Single Collimation Width | 0.6 mm | 0.5 mm | 0.625 mm | 0.625 mm | 1.2 mm | 0.625 mm | 0.625 mm |
Spiral Pitch Factor | 1 | 0.813 | 0.984 | 0.984 | 1 | 0.984 | 0.39 |
Table Feed Per Rotation | 57.6 mm/rot | 32.5 mm/rot | 39.375 mm/rot | 39.375 mm/rot | 19.2 mm/rot | 39.375 mm/rot | 24.96 mm/rot |
KVP | 120 kVp | 120 kVp | 120 kVp | 120 kVp | 120 kVp | 120 kVp | 120 kVp |
X Ray Tube Current | 23 mA | 30 mA | 25 mA | 25 mA | 20 mA | 20 mA | 24 mA |
Effective mAs | 20.3 mAs | 36.9 mAs | 20.3 mAs | 20.3 mAs | 24.6 mAs | 20 mAs | 23 mAs |
Filter Type | FLAT | LARGE | MEDIUM FILTER | MEDIUM FILTER | FLAT | HEAD FILTER | UB |
Data Collection Diameter | 500 mm | 500 mm | 320 mm | 320 mm | 500 mm | 320 mm | 500 mm |
CTDIvol (Body 32) | 1.4 mGy | 1.9 mGy | 1.5 mGy | 1.5 mGy | 1.3 mGy | 1.1 mGy | 1.5 mGy |
Reconstruction ‐ Baseline Images | |||||||
Reconstruction Algorithm | FBP | FBP | FBP | FBP | FBP | FBP | FBP |
Convolution Kernel | Hr40s | FC13 | STANDARD | STANDARD | H40s | STANDARD | UB |
Reconstruction Diameter | 250 mm | 250 mm | 250 mm | 250 mm | 250 mm | 250 mm | 250 mm |
Thickness | 2.0 mm | 2.0 mm | 2.5 mm | 2.5 mm | 2.0 mm | 2.0 mm | 2.5 mm |
Matrix Size | 512 x 512 | 512 x 512 | 512 x 512 | 512 x 512 | 512 x 512 | 512 x 512 | 512 x 512 |
Reconstruction ‐ Denoised Images | |||||||
Reconstruction Algorithm | ADMIRE | AIDR3D/AiCE | ASiR/ASiR‐V | – | SAFIRE | TrueFidelity | iDose |
Convolution Kernel | Hr40s | FC13/BodySharp | STANDARD | – | J40s | STANDARD | UB |
Reconstruction Diameter | 250 mm | 250 mm | 250 mm | – | 250 mm | 250 mm | 250 mm |
Thickness | 2.0 mm | 2.0 mm | 2.5 mm | – | 2.0 mm | 2.0 mm | 2.5 mm |
Matrix Size | 512 x 512 | 512 x 512 | 512 x 512 | – | 512 x 512 | 512 x 512 | 512 x 512 |