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Table 1 Median errors and uncertainties in quantification using the proposed, RC and local VOI methods for three activity distributions

From: Quantification and dosimetry of small volumes including associated uncertainty estimation

Phantom configuration

Method

Median error (MBq)

Median error (%)

Median uncertainty (%)

No background

Proposed

− 0.1 (− 0.41 to 0.07)

− 0.4 (− 1.3 to 0.6)

1.4 (1.38 to 1.41)

RC

57 (12.5 to 110)

395 (333 to 412)

301 (271 to 313)

Local VOI

− 0.1 (− 0.2 to 0)

− 0.3 (− 0.6 to 0)

N/A

Uniform background

Proposed

− 0.1 (− 0.2 to 0.1)

− 0.3 (− 0.6 to 0.2)

1.4 (1.36 to 2.03)

RC

130 (106 to 142)

289 (215 to 326)

240 (195 to 264)

Local VOI

1.4 (1.0 to 1.8)

4.2 (3.0 to 5.3)

N/A

Non-uniform background

Proposed

0.6 (0.4 to 1.1)

1.7 (1.1 to 3.4)

1.6 (1.5 to 1.7)

RC

− 23 (− 23.4 to − 23.5)

− 70.3 (− 70.2 to − 70.4)

1.6 (1.5 to 1.7)

Local VOI (position A)

6.7 (4.7 to 13.3)

20 (14 to 40)

N/A

  1. Ranges are given in brackets