An Investigation of the Effect of Gamma Rays Emitted by Patients Undergoing Radionuclide Bone Scintigraphy in Computed Radiography during X-ray Mammography Examination
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- Kamigiri Akira
- Department of Radiology, Mie University Hospital
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- Nagasawa Naoki
- Department of Radiology, Mie University Hospital
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- Yamaji Masami
- Department of Radiology, Mie University Hospital
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- Nakamura Mikako
- Department of Radiology, Mie University Hospital
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- Ito Morihiro
- Department of Biomedical Science, Faculty of Life and Health Science, Chubu University
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- Nakanishi Satoshi
- Department of Radiological Technology, Faculty of Health Science, Suzuka University of Medical Science
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- Kitano Tokio
- Department of Radiology, Mie University Hospital
Bibliographic Information
- Other Title
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- 骨シンチグラフィ用放射性医薬品投与後の患者から放出される γ線がCRマンモグラフィの画質に及ぼす影響の検討
- コツ シンチグラフィヨウ ホウシャセイ イヤクヒン トウヨ ゴ ノ カンジャ カラ ホウシュツ サレル ガンマセン ガ CR マンモグラフィ ノ ガシツ ニ オヨボス エイキョウ ノ ケントウ
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Description
For convenience of outpatients, mammographies of outpatients are often taken after the injection of a radionuclide. In this study, we investigated the effects of gamma rays emitted by a patient onto imaging plates (IPs). We used a flat container filled with 99mTc solution as a planar source to irradiate gamma rays onto IPs. We changed irradiation times on each IP, and took radiographies of an ACR-specified 156 model phantom and AGH-D210F phantom. We evaluated radiography images, using visual evaluation, and profile curves, histograms, and CNR and RMS granularities analyses. The results indicated that the depiction ability of a fibrous part began to fall when the irradiation time exceeded 3 minutes. With an increase in irradiation time, an increase in pixel value and RMS granularity value and a decrease in CNR value were observed. In conclusion, IP exposed by gamma rays influenced the evaluation of phantom images.
Journal
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- Japanese Journal of Radiological Technology
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Japanese Journal of Radiological Technology 66 (3), 193-200, 2010
Japanese Society of Radiological Technology
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Details 詳細情報について
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- CRID
- 1390282681337724032
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- NII Article ID
- 10025978251
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- NII Book ID
- AN00197784
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- ISSN
- 18814883
- 03694305
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- NDL BIB ID
- 10639882
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed