Pulmonary lobar volumetry using novel volumetric computer-aided diagnosis and computed tomography.

ABSTRACT:

Objectives

To compare the accuracy of pulmonary lobar volumetry using the conventional number of segments method and novel volumetric computer-aided diagnosis using 3D computed tomography images.

Methods

We acquired 50 consecutive preoperative 3D computed tomography examinations for lung tumours reconstructed at 1-mm slice thicknesses. We calculated the lobar volume and the emphysematous lobar volume < -950 HU of each lobe using (i) the slice-by-slice method (reference standard), (ii) number of segments method, and (iii) semi-automatic and (iv) automatic computer-aided diagnosis. We determined Pearson correlation coefficients between the reference standard and the three other methods for lobar volumes and emphysematous lobar volumes. We also compared the relative errors amon

SUBMITTER: Iwano S 

PROVIDER: S-EPMC3686391 | biostudies-literature | 2013 Jul

REPOSITORIES: biostudies-literature