TABLE 2

Quantitative Accuracy and Accumulated SEs for Patient Data

Patient no.VOI(mL)Urine activity concentration measured in well counter (kBq/mL)Activity concentration calculatedfrom image (kBq/mL)Deviation from true value (%)SE of deviation (%)
1380.424.524.60.4%8.3%
2479.430.632.04.7%8.4%
3244.645.045.81.8%8.2%
440.7144.3168.716.9%12.4%
5166.446.543.1−7.4%7.3%
6309.113.613.81.4%8.0%
7114.427.325.4−6.8%7.3%
8128.041.748.616.6%8.8%
9204.373.568.0−7.5%8.0%
10273.017.520.014.3%10.3%
11157.216.716.91.0%8.5%
1253.0284.1272.9−3.9%9.0%
13482.034.632.9−4.9%7.3%
14420.194.286.8−7.8%7.1%
15282.875.177.53.1%8.1%
16246.8138.4131.3−5.2%7.4%
Minimum40.713.613.8−7.8%7.1%
Maximum482.0284.1272.916.9%12.4%
Average248.969.269.31.1%8.4%