Usefulness of Texture Analysis in Differentiating Transient from Persistent Part-solid Nodules(PSNs): A Retrospective Study
Figure 3
An example of texture analysis of a transient PSN.
(A) Thin-section CT scan shows a 17 mm PSN (arrow) with an ill-defined margin in the left upper lobe in a 49-year-old female. (B) Texture analysis of this PSN shows a low mean attenuation and high positive skewness (−570.2 Hounsfield units and 0.856, respectively). The PSN disappeared at follow-up CT after one month.