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The Effect of Lung Volume on the Size and Volume of Pulmonary Subsolid Nodules on CT: Intraindividual Comparison between Total Lung Capacity and Tidal Volume
PURPOSE: To examine the effect of lung volume on the size and volume of pulmonary subsolid nodules (SSNs) measured on CT. MATERIALS AND METHODS: A total of 42 SSNs from 31 patients were included. CT examination was first performed at total lung capacity (TLC), and a section containing the nodule was...
Formato: | Online Artículo Texto |
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Lenguaje: | English |
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The Korean Society of Radiology
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9431968/ https://www.ncbi.nlm.nih.gov/pubmed/36238880 http://dx.doi.org/10.3348/jksr.2021.0141 |
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collection | PubMed |
description | PURPOSE: To examine the effect of lung volume on the size and volume of pulmonary subsolid nodules (SSNs) measured on CT. MATERIALS AND METHODS: A total of 42 SSNs from 31 patients were included. CT examination was first performed at total lung capacity (TLC), and a section containing the nodule was additionally scanned at tidal volume (TV). The diameter and volume of each SSN, as well as the cross-sectional lung area containing the nodule, were measured. The significance of the changes in measurements between TLC and TV within the same individuals was evaluated. RESULTS: The lung area and the diameter and volume of SSNs decreased significantly at TV by 12.7 cm(2), 0.5 mm, and 46.4 mm(3) on average, respectively (p < 0.001), compared to those at TLC. Changes in lung area between TV and TLC were positively correlated with the change in SSN diameter (p = 0.027) and volume (p = 0.014). However, after correction (by considering the change in lung area), the changes in SSN diameter (p = 0.124) and volume (p = 0.062) were not significantly different. CONCLUSION: SSN size and volume can be significantly affected by lung volume during CT scans of the same individuals. |
format | Online Article Text |
id | pubmed-9431968 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | The Korean Society of Radiology |
record_format | MEDLINE/PubMed |
spelling | pubmed-94319682022-10-12 The Effect of Lung Volume on the Size and Volume of Pulmonary Subsolid Nodules on CT: Intraindividual Comparison between Total Lung Capacity and Tidal Volume Taehan Yongsang Uihakhoe Chi Thoracic Imaging PURPOSE: To examine the effect of lung volume on the size and volume of pulmonary subsolid nodules (SSNs) measured on CT. MATERIALS AND METHODS: A total of 42 SSNs from 31 patients were included. CT examination was first performed at total lung capacity (TLC), and a section containing the nodule was additionally scanned at tidal volume (TV). The diameter and volume of each SSN, as well as the cross-sectional lung area containing the nodule, were measured. The significance of the changes in measurements between TLC and TV within the same individuals was evaluated. RESULTS: The lung area and the diameter and volume of SSNs decreased significantly at TV by 12.7 cm(2), 0.5 mm, and 46.4 mm(3) on average, respectively (p < 0.001), compared to those at TLC. Changes in lung area between TV and TLC were positively correlated with the change in SSN diameter (p = 0.027) and volume (p = 0.014). However, after correction (by considering the change in lung area), the changes in SSN diameter (p = 0.124) and volume (p = 0.062) were not significantly different. CONCLUSION: SSN size and volume can be significantly affected by lung volume during CT scans of the same individuals. The Korean Society of Radiology 2021-11 2021-10-18 /pmc/articles/PMC9431968/ /pubmed/36238880 http://dx.doi.org/10.3348/jksr.2021.0141 Text en Copyrights © 2021 The Korean Society of Radiology https://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0 (https://creativecommons.org/licenses/by-nc/4.0/) ) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Thoracic Imaging The Effect of Lung Volume on the Size and Volume of Pulmonary Subsolid Nodules on CT: Intraindividual Comparison between Total Lung Capacity and Tidal Volume |
title | The Effect of Lung Volume on the Size and Volume of Pulmonary Subsolid Nodules on CT: Intraindividual Comparison between Total Lung Capacity and Tidal Volume |
title_full | The Effect of Lung Volume on the Size and Volume of Pulmonary Subsolid Nodules on CT: Intraindividual Comparison between Total Lung Capacity and Tidal Volume |
title_fullStr | The Effect of Lung Volume on the Size and Volume of Pulmonary Subsolid Nodules on CT: Intraindividual Comparison between Total Lung Capacity and Tidal Volume |
title_full_unstemmed | The Effect of Lung Volume on the Size and Volume of Pulmonary Subsolid Nodules on CT: Intraindividual Comparison between Total Lung Capacity and Tidal Volume |
title_short | The Effect of Lung Volume on the Size and Volume of Pulmonary Subsolid Nodules on CT: Intraindividual Comparison between Total Lung Capacity and Tidal Volume |
title_sort | effect of lung volume on the size and volume of pulmonary subsolid nodules on ct: intraindividual comparison between total lung capacity and tidal volume |
topic | Thoracic Imaging |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9431968/ https://www.ncbi.nlm.nih.gov/pubmed/36238880 http://dx.doi.org/10.3348/jksr.2021.0141 |
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