2024-03-29T00:26:16Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00015511
2023-11-16T05:51:34Z
499:508:509:1466
Considerations for Standard Chest Radiography: the Long Film-Focus Distance Technique
HIROSE, MITSUHIKO
98816
IKEDA, MITSURU
98817
ITO, KENGO
98818
ISHIGAKI, TAKEO
98819
SAKUMA, SADAYUKI
98820
Chest
Radiography
Long film-focus distance
Screening for lung cancer
1993-03
The possibility of using long film-focus distance radiography as a new screening method for lung cancer diagnosis was investigated. Long-film focus distance radiogyaphy produced exceptionally superior image sharpness suitable for use as clinical photographs, at a distance of about FFD (Film-Focus Distance) 20 m. The effective energy was increased by narrowing the radiation spectrum via an air-filter effect, which may prove useful in reducing radiation exposure dosage. Questionnaire results indicate good visualization of cardiac posterior and trachea shadow regions in the diaphragm. Further study is required regarding methods for stabilizing patient position and synchronization with heart beat and respiration to improve reproducibility.
departmental bulletin paper
Nagoya University School of Medicine
1993-03
Nagoya Journal of Medical Science
1-4
55
33
39
2186-3326
0027-7622
eng
http://www.med.nagoya-u.ac.jp/medlib/nagoya_j_med_sci/5514/5514.html