Table 1.
Ordered subset expectation maximization reconstruction strategies.
Fig 1.
This heatmap of the z-score shows the heterogeneity of radiomic features values according to different types of reconstruction. CTAC = CT-based attenuation correction; FBP = filtered back projection; NAC = no attenuation correction; OSEM = ordered subset expectation maximization.
Table 2.
Reproducibility analysis results.
Fig 2.
This plot is showing density distribution of coefficient of variation values within two groups—CT attenuation correction and no attenuation correction group; each group contains COV of radiomic features extracted from different reconstruction settings (OSEM1 –OSEM7), radiomics features that showed a significantly higher rate of COV (outliers) are demonstrated by blue dots. Listed outliers can be found in Table 3. CTAC = CT attenuation correction; NAC = no attenuation correction.
Table 3.
List of the least reproducible radiomic features.