Table 5 Quantification errors between activity concentrations calculated with the conventional method and the SBVR method for different time per view settings for spheres, kidneys and liver in the L-KS Phantom (minus sign – overestimation)
Organ/Sphere volume (VOI volume) [cc] | Kidney/Liver phantom Val. 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) | 3.40% (4.52/18.40) | − 11.31% (3.92) | 4.51% (4.64/22.64) | − 13.02% (3.92) | 4.92% (4.64/25.51) | − 12.53% (3.92) |
11.49 (10.3 cc) | 2.14% (3.82/36.04) | − 17.54% (3.19) | 0.78% (3.82/36.56) | − 19.17% (3.19) | 1.96% (3.82/36.50) | − 17.44% (3.19) |
5.71 (6.36 cc) | − 11.88% (2.70/12.68) | − 14.43% (2.64) | − 8.31% (2.70/13.0) | − 10.77% (2.64) | − 9.24% (2.67/12.66) | − 10.26% (2.64) |
Liver (~ 1600 cc) | − 1.35% (4.34/2.21) | 11.86% (5.0) | − 0.30% (4.34/2.20) | 13.70% (5.0) | 3.20% (4.52/2.30) | 15.75% (5.0) |
Kidney R (~ 168 cc) | 3.00% (3.80/5.0) | 26.32% (5.0) | 3.00% (3.80/5.1) | 26.28% (5.0) | − 2.59% (3.84/5.74) | 21.20% (5.0) |
Kidney L (~ 170 cc) | − 5.06% (3.76/4.72) | 20.98% (5.0) | − 8.98% (3.77/4.81) | 17.82% (5.0) | − 6.96% (3.79/4.97) | 18.92% (5.0) |