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Disagreement of diameter and volume measurements for pulmonary nodule size estimation in CT lung cancer screening.
- Source :
- Thorax; Aug2018, Vol. 73 Issue 8, p779-781, 3p, 1 Chart, 1 Graph
- Publication Year :
- 2018
-
Abstract
- We studied 2240 indeterminate solid nodules (volume 50-500mm3) to determine the correlation of diameter and semi-automated volume measurements for pulmonary nodule size estimation. Intra-nodular diameter variation, defined as maximum minus minimum diameter through the nodule's center, varied by 2.8 mm (median, IQR:2.2-3.7 mm), so above the 1.5 mm cutoff for nodule growth used in Lung CT Screening Reporting and Data System (Lung-RADS). Using mean or maximum axial diameter to assess nodule volume led to a substantial mean overestimation of nodule volume of 47.2% and 85.1%, respectively, compared to semi-automated volume. Thus, size of indeterminate nodules is poorly represented by diameter.<bold>Trial Registration Number: </bold>Pre-results, ISRCTN63545820. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00406376
- Volume :
- 73
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Thorax
- Publication Type :
- Academic Journal
- Accession number :
- 130844394
- Full Text :
- https://doi.org/10.1136/thoraxjnl-2017-210770