Table 2 Imaging modalities and protocols used in this study
From: Preclinical multimodality phantom design for quality assurance of tumor size measurement
Gammex/UTHSCSA Mark 1 phantom | Gammex/UTHSCSA Mark 2 phantom | UTHSCSA Multimodality tumor measurement phantom | |
|---|---|---|---|
US | Vevo 770™ -120 high frequency system(Visualsonics Inc. Toronto, ON, Canada) | Vevo 770™ -120 high frequency system(Visualsonics Inc. Toronto, ON, Canada) | Vevo 770™ -120 high frequency system(Visualsonics Inc. Toronto, ON, Canada) |
Scanhead RMV 703, 35 MHz center frequency, 10 mm focal length | Scanhead RMV 703, 35 MHz center frequency, 10 mm focal length | Scanhead RMV 703 35 MHz center frequency, 10 mm focal length | |
Resolution | Axial: 50 μ, Lateral: 110 μ | Axial: 50 μ, Lateral: 110 μ | Axial: 50 μ, Lateral: 110 μ |
CT | Brilliance 64-slice scanner (Philips Healthcare, Andover, MA) | Micro-CT (Gamma Medica-Ideas, Inc., Northridge, CA) | Micro-CT (Gamma Medica-Ideas, Inc., Northridge, CA) |
Tube voltage: 120 kV, Tube current: 133 mA, Exposure time: 0.75 s, CTDIvol : 21.4 mGy | Tube voltage: 75 kV, Tube current: 185 μA, Acquisition time: 60 s | Tube voltage: 75 kV, Tube current: 185 μA, Acquisition time: 60 s | |
Resolution | 0.35 × 0.35 × 1.00 mm3 | 0.17 × 0.17 × 0.17 mm3 | 0.17 × 0.17 × 0.17 mm3 |
MRI | Achieva 3.0T scanner (Philips Healthcare, Andover, MA) | Intera 1.5T scanner (Philips Healthcare, Andover, MA) | 7.0T scanner (Bruker BioSpin MRI GmbH, Ettlingen, Germany) |
Surface coil Turbo spin echo T1 weighted images TR = 1121 ms, TE = 4.63 ms, echo train factor = 5 and number of average = 10 | Head coil 3D FFE T1 weighted images TR = 8.59 ms, TE = 4.19 ms, echo train factor = 0 and number of average = 24 | Bruker Volume coil 3D Turbo RARE | |
Resolution | 0.94 × 0.94 × 5.00 mm3 | 0.75 × 0.75 × 2.00 mm3 | 0.13 × 0.20 × 0.23 mm3 |