Statistical analyses
The sample size was calculated based on diagnostic accuracy with the non-inferiority analysis. Based upon past investigations linked to CT-guided biopsy for PNs, we estimated that the diagnostic accuracy was 94% [Intention-to-treat (ITT) evaluations were performed depending on the total patient group quantity enrolled in this study. In contrast, per-protocol (PP) evaluations were performed depending on the total number of patients who achieved technical success and definite final-diagnoses.The continuous data were compared through the independent sample t test when the distribution was normal, while Mann–Whitney U test was used if the distribution was not normal. Categorical data were compared through Pearson χ