Evaluation of a noise reduction procedure for chest radiography

Ryohei Fukui, Rie Ishii, Kazuhiko Kodani, Yoshiko Kanasaki, Hisashi Suyama, Masanari Watanabe, Masaki Nakamoto, Yasushi Fukuoka

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Background The aim of this study was to evaluate the usefulness of noise reduction procedure (NRP), a function in the new image processing for chest radiography. Methods A CXDI-50G Portable Digital Radiography System (Canon) was used for X-ray detection. Image noise was analyzed with a noise power spectrum (NPS) and a burger phantom was used for evaluation of density resolution. The usefulness of NRP was evaluated by chest phantom images and clinical chest radiography. We employed the Bureau of Radiological Health Method for scoring chest images while carrying out our observations. Results NPS through the use of NRP was improved compared with conventional image processing (CIP). The results in image quality showed high-density resolution through the use of NRP, so that chest radiography examination can be performed with a low dose of radiation. Scores were significantly higher than for CIP. Conclusion In this study, use of NRP led to a high evaluation in these so we are able to confirm the usefulness of NRP for clinical chest radiography.

Original languageEnglish
Pages (from-to)85-91
Number of pages7
JournalYonago Acta Medica
Issue number4
Publication statusPublished - 2013
Externally publishedYes


  • Chest radiography
  • Image processing
  • Noise power spectrum
  • Noise reduction procedure
  • Observation

ASJC Scopus subject areas

  • Medicine(all)


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