Korean J Radiol.
2021 Apr;22(4):634-651. 10.3348/kjr.2020.1136.
Dynamic Chest X-Ray Using a Flat-Panel Detector System: Technique and Applications
- Hata A
1 - Yamada Y2
- Tanaka R3
- Nishino M1
- Hida T4
- Hino T1
- Ueyama M5
- Yanagawa M6
- Kamitani T4
- Kurosaki A7
- Sanada S8
- Jinzaki M2
- Ishigami K4
- Tomiyama N6
- Honda H4
- Kudoh S9
- Hatabu H1
- Affiliations
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- 1Center for Pulmonary Functional Imaging, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
- 2Department of Diagnostic Radiology, Keio University School of Medicine, Tokyo, Japan.
- 3Department of Radiological Technology, School of Health Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Ishikawa, Japan.
- 4Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
- 5Department of Health Care, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
- 6Department of Diagnostic and Interventional Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
- 7Department of Diagnostic Radiology, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan.
- 8Clinical Engineering, Komatsu University, Ishikawa, Japan.
- 9Japan Anti-Tuberculosis Association, Tokyo, Japan.
- KMID: 2514629
- DOI: http://doi.org/10.3348/kjr.2020.1136
Abstract
- Dynamic X-ray (DXR) is a functional imaging technique that uses sequential images obtained by a flat-panel detector (FPD). This article aims to describe the mechanism of DXR and the analysis methods used as well as review the clinical evidence for its use. DXR analyzes dynamic changes on the basis of X-ray translucency and can be used for analysis of diaphragmatic kinetics, ventilation, and lung perfusion. It offers many advantages such as a high temporal resolution and flexibility in body positioning. Many clinical studies have reported the feasibility of DXR and its characteristic findings in pulmonary diseases. DXR may serve as an alternative to pulmonary function tests in patients requiring contact inhibition, including patients with suspected or confirmed coronavirus disease 2019 or other infectious diseases. Thus, DXR has a great potential to play an important role in the clinical setting. Further investigations are needed to utilize DXR more effectively and to establish it as a valuable diagnostic tool.
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