Article Figures & Data
Figures
- FIGURE 1.
Time–activity curves from whole-body imaging.
- FIGURE 3.
Anterior (A) and posterior (B) whole-body images from GE Millennium VG with MEGP collimator.
- FIGURE 4.
Anterior (A) and posterior (B) whole-body images from GE Millennium VG with HEGP collimator.
Tables
Chamber Volume (L) Activity concentration (MBq/L) Total activity (MBq) Liver 1.175 6.30 7.4 Lungs 0.787 4.70 3.7 Heart (outer chamber) 0.116 63.8 7.4 Thorax 8.4 2.2 18.5 Chamber Volume (L) Activity concentration (MBq/L) Total activity (MBq) Liver 1.475 6.27 9.25 6-cm sphere 0.113 74 8.4 3-cm sphere 0.014 37 2.6 Thorax 8.23 1.12 48.7 Collimator GE Millennium VG Philips Skylight 1 Philips Skylight 2 Philips Vertex V60 MEGP X X X HEGP X X Collimator Hole diameter (mm) Hole length (mm) Septal thickness (mm) Septal penetration (%) Septal penetration (keV) Skylight MEGP 2.95 48 1.143 3.3 300 Skylight HEGP 3.81 60 1.727 3.5 364 Vertex V60 MEGP 2.95 48 1.143 3.3 300 GE Millennium VG MEGP 3.0 58 1.05 GE Millennium VG HEGP 4.0 66 1.8 Collimator 131I half-life, d (% deviation from reference value) GE Millennium VG MEGP 8.135 (1.42) HEGP 8.042 (0.27) Skylight MEGP 8.175 (1.92) HEGP 8.194 (2.16) Vertex V60 MEGP 8.214 (2.41) - TABLE 7
131I-Tositumomab Effective Half-Life, TBRT, and Prescribed Therapeutic Dose for Patient, Calculated with Different γ-Camera and Collimator Combinations
GE Millennium VG Skylight Vertex V60 MEGP Parameter MEGP HEGP MEGP HEGP Effective half-life (h) 79.5 79.1 79.6 79.7 79.8 TBRT (h) 114.7 114.1 114.9 115.0 115.1 Dose (GBq) 2.59 2.6 2.59 2.58 2.58 Dose (mCi) 70 70.4 69.9 69.8 69.8
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