Table 2.

Measured Data, Difference in Values, and Degree of Correlation of the Main Bronchi between 2D and 3D Images in Men (mm)

Values are mean ± SD or median (range). 2D: two-dimensional image, 3D: three-dimensional image, LMB: left main bronchus, RMB: right main bronchus, AP: anteroposterior, TR: transverse, NS: not significant. 3D-2D: subtraction 2D from 3D. R values: correlation coefficient between 2D and 3D, P values: correlation significant between 2D and 3D. ^*P < 0.05 by t-test between 2D and 3D.