Two PET/CT indices, based on manual (manual PET index) and automatic segmenting using a threshold of SUV 15 (automated PET15 index), were calculated by dividing the sum of all hotspot volumes with the volume of all segmented bones.
MET-PET moderate region was defined, using a threshold value for the L/N index of 1.3 or over.
A clear differentiation regarding sylvestris and sativa compartments was recognized, using a threshold value for the similarity index lower than 87%%.
Language lateralization was determined using a threshold-independent laterality index calculated using the LI toolbox (Wilke and Schmithorst, 2006), where LI = (L − R) / (L + R).
MET-PET avid region was defined, using a threshold value for the lesion versus normal counts of radioisotope per pixel (L/N) index of 1.7 or over.
A threshold index value of 0.5 was used to classify a forest stand as habitat or non-habitat.
although some studies have used a threshold of 2 × 105 cells/mL6.
We performed PSI analysis by selecting PS candidate pixels using an amplitude dispersion index threshold of 0.3 (Ferretti et al. 2001).
Ab positivity was defined using threshold indexes of GAD65 ≥0.032, ICA512 ≥0.049, and mIAA ≥0.01.
The remainder was rated as low risk of bias as they used a prespecified index test threshold (9/14).
