Fig 1.
A pulmonary mass (nasopharyngeal carcinoma metastasis) in a 59-year-old male.
CT images were reconstructed with (A) filtered back projection and Sinogram Affirmed Iterative Reconstruction (B) level 3 and (C) level 5. (D) Tumor was segmented manually and radiomic features were automatically calculated using in-house software.
Table 1.
Comparison of radiomic feature values between FBP and iterative reconstruction algorithm (Reader 1).
Table 2.
Comparison of radiomic feature values between FBP and iterative reconstruction algorithm (Reader 2).
Table 3.
Coefficient of variation (CV) of radiomic features.