Table 4 Quantification errors between activity concentrations calculated with the conventional method and the SBVR method for different time per view settings for spheres and liver in the Torso Phantom (minus sign – overestimation)
Organ/Sphere volume (VOI volume) [cc] | Torso Val. Phantom acquisition validation | |||||
|---|---|---|---|---|---|---|
Quantification error (%) | ||||||
Time per view: 30-s | Time per view: 20-s | Time per view: 10-s | ||||
SBVR Method (CF/ SBVR) | Conv. Method (CF) | SBVR Method (CF/ SBVR) | Conv. Method (CF) | SBVR Method (CF/ SBVR) | Conv. Method (CF) | |
26.52 (22.7 cc) | − 7.30% (4.24/1.50) | − 16.06% (3.92) | − 8.14% (4.09/12.43) | − 12.83% (3.92) | − 10.07% (3.92/9.93) | − 10.63% (3.92) |
5.71 (6.36 cc) | − 9.34% (2.98/63.90) | − 23.42% (2.64) | − 8.18% (2.98/105.61) | − 26.21% (2.64) | − 10.18% (2.98/70.61) | − 24.73% (2.64) |
Liver (~ 1200 cc) | − 1.50% (4.87/15.0) | 1.10% (5.0) | 3.87% (4.87/12.0) | 6.34% (5.0) | 3.31% (4.87/11.0) | 5.82% (5.0) |