Multidetector-row CT analysis of time-dependent changes in lung fields after chest irradiation: Usefulness of precision scans

  • Authors:
    • M. Imamura
    • S. Sawada
    • K. Harima
    • T. Shiga
    • M. Sougawa
  • View Affiliations

  • Published online on: September 1, 2003     https://doi.org/10.3892/or.10.5.1449
  • Pages: 1449-1454
Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Time-dependent changes in lung fields after chest irradiation were analyzed using multidetector-row CT. Routine scans at 3-mm raw thickness and 8-mm recon thickness and precision scans at 0.5-mm raw thickness and 0.5-mm recon thickness were compared with respect to the number of each finding and the time-dependent changes in the rate of each finding. Among the findings visualized by these scans, ground-glass opacity (GGO) showed the highest overall appearance rate. Precision scans exceeded routine scans in the rates of all findings except GGO and confluent shadows, and the two types of scans showed the greatest difference in the rate of GGO. Since we found that GGO tended to be overestimated on routine scans, we confirmed it by a phantom experiment. Precision scans were similar or superior to routine scans in the rates of findings except 3 months after irradiation. We consider that the concomitant use of precision scans is useful in that it allows more accurate evaluation of various post-irradiation changes in lung fields including GGO, in which the lesion is in a reversible stage.

Related Articles

Journal Cover

September-October 2003
Volume 10 Issue 5

Print ISSN: 1021-335X
Online ISSN:1791-2431

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Imamura M, Sawada S, Harima K, Shiga T and Sougawa M: Multidetector-row CT analysis of time-dependent changes in lung fields after chest irradiation: Usefulness of precision scans. Oncol Rep 10: 1449-1454, 2003
APA
Imamura, M., Sawada, S., Harima, K., Shiga, T., & Sougawa, M. (2003). Multidetector-row CT analysis of time-dependent changes in lung fields after chest irradiation: Usefulness of precision scans. Oncology Reports, 10, 1449-1454. https://doi.org/10.3892/or.10.5.1449
MLA
Imamura, M., Sawada, S., Harima, K., Shiga, T., Sougawa, M."Multidetector-row CT analysis of time-dependent changes in lung fields after chest irradiation: Usefulness of precision scans". Oncology Reports 10.5 (2003): 1449-1454.
Chicago
Imamura, M., Sawada, S., Harima, K., Shiga, T., Sougawa, M."Multidetector-row CT analysis of time-dependent changes in lung fields after chest irradiation: Usefulness of precision scans". Oncology Reports 10, no. 5 (2003): 1449-1454. https://doi.org/10.3892/or.10.5.1449