Abstract
Aim
This study aimed to evaluate the validity of 0.5-mm thin-section computed tomography
(CT) for the assessment of pulmonary nodular lesion in comparison with 1-mm CT.
Materials and Methods
A total of 38 focal lesions from 30 patients, which were scanned with 0.5- and 1.0-mm
collimation, were evaluated regarding the extent of ground-glass opacity (GGO) and
well-defined margin, and the presence of pleural indentation, spicula, and internal
air density. The frequency of each finding was statistically compared between 0.5-
and 1-mm CT using the McNemar test.
Results
No statistically significant difference was observed between 0.5- and 1-mm CT for
each finding.
Conclusion
The use of 0.5-mm CT is not justified if the original collimation of multi-detector
row CT is near 1 mm.
Keywords
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References
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Article info
Publication history
Published online: August 07, 2008
Accepted:
June 10,
2008
Received:
December 15,
2007
Identification
Copyright
© 2009 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
