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EJNMMI Research

Table 4 Sensitivity, specificity and accuracy for SUVmax and TBratio at optimal cut-offs, determined for standard- and small-voxel PET

From: Diagnostic implications of a small-voxel reconstruction for loco-regional lymph node characterization in breast cancer patients using FDG-PET/CT

  

Optimal cut-off

Sensitivity

Specificity

Accuracy

SUVmax

Standard-voxels

1.8

81%

95%

85%

Small-voxels

2.6

78%

98%

84%

TBratio

Standard-voxels

2.4

80%

82%

80%

Small-voxels

3.3

84%

77%

82%

  1. The use of small-voxel images requires higher SUV cut-offs for accurate lymph node characterization. Furthermore, SUVmax showed a higher performance as compared to TBratio, with p = 0.04 for standard-voxels and p < 0.001 for small-voxels. However, the characterization performances were similar for standard- and small-voxel images, with p = 0.11 for SUVmax and p = 0.29 for TBratio
  2. SUV max maximum standardized uptake value, TB ratio ratio between the lymph node SUVmax and the lymph node background uptake, PET positron emission tomography
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