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EJNMMI Reports

Table 5 Comparison of the three different criteria for delineating the lesions: number of detected lesions

From: Exploring the applicability of a lesion segmentation method on [18F]fluorothymidine PET/CT images in diffuse large B-cell lymphoma

Stage

Reference tissue†

Number of segmented lesions*

Reported

Criterion 1

Criterion 2

Criterion 3

Baseline

Liver

111

109 (98%)

106 (95%)

104 (94%)

Bone Marrow

211

209 (99%)

204 (97%)

195 (92%)

iPET

Liver

30

30 (100%)

27 (90%)

27 (90%)

Bone Marrow

36

36 (100%)

36 (100%)

33 (92%)

fPET

Liver

12

12 (100%)

12 (100%)

12 (100%)

Bone Marrow

14

14 (100%)

14 (100%)

12 (86%)

  1. *Number of detected lesions following the different thresholding criteria. Percentage with respect to the number of reported lesions is given in parentheses
  2. †For each reference tissue, we considered only those patients whose uptake lay within the normal range
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