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Chest radiography: estimated lung volume and projected area obscured by the heart, mediastinum, and diaphragm.

Publication ,  Journal Article
Chotas, HG; Ravin, CE
Published in: Radiology
November 1994

PURPOSE: To estimate what fraction of the lung volume and projected lung area are obscured by the heart, mediastinum, and diaphragm on frontal chest radiographs. MATERIALS AND METHODS: Digital images from 25 computed tomographic examinations of the chest (10-mm section thickness and spacing) were analyzed, lung regions were identified in each image section, and simulated frontal radiographs were constructed from the resultant data to estimate the obscured-volume and obscured-area fractions for each patient. Means and standard deviations of the measured lung fractions were computed. RESULTS: On average, 26.4% of the lung volume (standard deviation, 5.1) and 43.0% of the lung area (standard deviation, 6.6) were obscured. CONCLUSION: These substantial lung fractions should be considered in the selection of a screen-film system for chest radiography, because the obscured portion of the lung can be poorly imaged if an inappropriate system is chosen.

Duke Scholars

Published In

Radiology

DOI

ISSN

0033-8419

Publication Date

November 1994

Volume

193

Issue

2

Start / End Page

403 / 404

Location

United States

Related Subject Headings

  • Radiography, Thoracic
  • Nuclear Medicine & Medical Imaging
  • Middle Aged
  • Mediastinum
  • Male
  • Lung
  • Humans
  • Heart
  • Female
  • Diaphragm
 

Citation

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ICMJE
MLA
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Chotas, H. G., & Ravin, C. E. (1994). Chest radiography: estimated lung volume and projected area obscured by the heart, mediastinum, and diaphragm. Radiology, 193(2), 403–404. https://doi.org/10.1148/radiology.193.2.7972752
Chotas, H. G., and C. E. Ravin. “Chest radiography: estimated lung volume and projected area obscured by the heart, mediastinum, and diaphragm.Radiology 193, no. 2 (November 1994): 403–4. https://doi.org/10.1148/radiology.193.2.7972752.
Chotas, H. G., and C. E. Ravin. “Chest radiography: estimated lung volume and projected area obscured by the heart, mediastinum, and diaphragm.Radiology, vol. 193, no. 2, Nov. 1994, pp. 403–04. Pubmed, doi:10.1148/radiology.193.2.7972752.
Journal cover image

Published In

Radiology

DOI

ISSN

0033-8419

Publication Date

November 1994

Volume

193

Issue

2

Start / End Page

403 / 404

Location

United States

Related Subject Headings

  • Radiography, Thoracic
  • Nuclear Medicine & Medical Imaging
  • Middle Aged
  • Mediastinum
  • Male
  • Lung
  • Humans
  • Heart
  • Female
  • Diaphragm