Evaluation of a Noise Reduction Procedure for Chest Radiography |
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| Authors: | Ryohei Fukui Rie Ishii Kazuhiko Kodani Yoshiko Kanasaki Hisashi Suyama Masanari Watanabe Masaki Nakamoto Yasushi Fukuoka |
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| Institution: | *Division of Clinical Radiology, Tottori University Hospital, Yonago 683-8504, Japan;†Division of Radiology, Matsue City Hospital, Matsue 690-8509, Japan;‡Division of Internal Medicine, Tottori Central Prefectural Hospital, Tottori 680-0901, Japan;§Division of Medical Oncology and Molecular Respirology, Tottori University Hospital, Yonago 683-8504, Japan |
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| Abstract: | BackgroundThe aim of this study was to evaluate the usefulness of noise reduction procedure (NRP),
a function in the new image processing for chest radiography.MethodsA 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.ResultsNPS 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. ConclusionIn 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. |
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| Keywords: | chest radiography image processing noise power spectrum noise reduction procedure observation |
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