Hot Vial SUVmax and SUVvial Measured With and Without Normalization Using ACR ROIs and Cylindric VOIs
Hot vial diameter (mm) | SUVmax | SUVvial | SUVmax, Normalized | SUVvial, Normalized |
25 | 2.56 ± 6.7% | 2.37 ± 6.2% | 2.54 ± 3.6% | 2.46 ± 3.1% |
16 | 2.43 ± 9.7% | 2.16 ± 7.2% | 2.41 ± 7.0% | 2.24 ± 3.8% |
12 | 2.02 ± 6.0% | 1.82 ± 5.6% | 2.01 ± 5.2% | 1.89 ± 2.4% |
8 | 1.35 ± 9.4% | 1.29 ± 8.3% | 1.34 ± 6.3% | 1.34 ± 3.7% |
SUVmax using 25-mm circular ROI in 10-mm slice. SUVvial using cylindric VOI. Normalized SUVs account for actual syringe activities and dilution vessel used during phantom preparation.