Visual discrimination of screen-detected persistent from transient subsolid nodules: An observer study.

ABSTRACT:

Purpose

To evaluate whether, and to which extent, experienced radiologists are able to visually correctly differentiate transient from persistent subsolid nodules from a single CT examination alone and to determine CT morphological features to make this differentiation.

Materials and methods

We selected 86 transient and 135 persistent subsolid nodules from the National Lung Screening Trial (NLST) database. Four experienced radiologists visually assessed a predefined list of morphological features and gave a final judgment on a continuous scale (0-100). To assess observer performance, area under the receiver operating characteristic (ROC) curve was calculated. Statistical differences of morphological features between transient and persistent lesions were calculated using Chi-

SUBMITTER: Chung K 

PROVIDER: S-EPMC5810988 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature