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Breathing chest radiography using a dynamic flat-panel detector combined with computer analysis

2004; Wiley; Volume: 31; Issue: 8 Linguagem: Inglês

10.1118/1.1769351

2473-4209

Rie Tanaka, Shigeru Sanada, Masayuki Suzuki, Takeshi Kobayashi, Takeshi Matsui, Hitoshi Inoue, Yoshihisa Nakano,

Pleural and Pulmonary Diseases

Medical PhysicsVolume 31, Issue 8 p. 2254-2262 Radiation imaging physics Breathing chest radiography using a dynamic flat-panel detector combined with computer analysis Rie Tanaka, Rie Tanaka Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Kanazawa University, Kodatsuno 5-11-80, Kanazawa, JapanSearch for more papers by this authorShigeru Sanada, Shigeru Sanada Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Kanazawa University, Kodatsuno 5-11-80, Kanazawa, JapanSearch for more papers by this authorMasayuki Suzuki, Masayuki Suzuki Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Kanazawa University, Kodatsuno 5-11-80, Kanazawa, JapanSearch for more papers by this authorTakeshi Kobayashi, Takeshi Kobayashi Department of Radiology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, JapanSearch for more papers by this authorTakeshi Matsui, Takeshi Matsui Department of Radiology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, JapanSearch for more papers by this authorHitoshi Inoue, Hitoshi Inoue DR Systems Development Dept. 5, Canon Inc., 20-2 Utsunomiya, JapanSearch for more papers by this authorNakano Yoshihisa, Nakano Yoshihisa Department of Radiology, Kyoto Katsura Hospital, 17 Hirao, Yamada, Nishikyouku, Kyoto, JapanSearch for more papers by this author Rie Tanaka, Rie Tanaka Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Kanazawa University, Kodatsuno 5-11-80, Kanazawa, JapanSearch for more papers by this authorShigeru Sanada, Shigeru Sanada Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Kanazawa University, Kodatsuno 5-11-80, Kanazawa, JapanSearch for more papers by this authorMasayuki Suzuki, Masayuki Suzuki Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Kanazawa University, Kodatsuno 5-11-80, Kanazawa, JapanSearch for more papers by this authorTakeshi Kobayashi, Takeshi Kobayashi Department of Radiology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, JapanSearch for more papers by this authorTakeshi Matsui, Takeshi Matsui Department of Radiology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, JapanSearch for more papers by this authorHitoshi Inoue, Hitoshi Inoue DR Systems Development Dept. 5, Canon Inc., 20-2 Utsunomiya, JapanSearch for more papers by this authorNakano Yoshihisa, Nakano Yoshihisa Department of Radiology, Kyoto Katsura Hospital, 17 Hirao, Yamada, Nishikyouku, Kyoto, JapanSearch for more papers by this author First published: 23 July 2004 https://doi.org/10.1118/1.1769351Citations: 32AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Kinetic information is crucial when evaluating certain pulmonary diseases. When a dynamic flat-panel detector (FPD) can be used for a chest examination, kinetic information can be obtained simply and cost-effectively. The purpose of this study was to develop methods for analyzing respiratory kinetics, such as movement of the diaphragm and lung structures, and the respiratory changes in x-ray translucency in local lung fields. Postero-anterior dynamic chest radiographs during respiration were obtained with a modified FPD, which provided dynamic chest radiographs at a rate of 3 frames/s. Image registration for correction of physical motion was followed by measurement of the distance from the lung apex to the diaphragm. Next, we used a cross-correlation technique to measure the vectors of respiratory movement in specific lung areas. Finally, the average pixel value for a given local area was calculated by tracing the same local area in the lung field. This method of analysis was used for six healthy volunteers and one emphysema patient. The results reported here represent the initial stage in the development of a method that may constitute a new method for diagnosing certain pulmonary diseases, such as chronic obstructive pulmonary disease, fibroid lung, and pneumonia. A clinical evaluation of our method is now in progress. Citing Literature Volume31, Issue8August 2004Pages 2254-2262 RelatedInformation