Tanaka Rie
Department of Radiological Technology, School of Health Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, 920-0942, Japan.
Radiol Phys Technol. 2016 Jul;9(2):139-53. doi: 10.1007/s12194-016-0361-6. Epub 2016 Jun 13.
Dynamic chest radiography is a flat-panel detector (FPD)-based functional X-ray imaging, which is performed as an additional examination in chest radiography. The large field of view (FOV) of FPDs permits real-time observation of the entire lungs and simultaneous right-and-left evaluation of diaphragm kinetics. Most importantly, dynamic chest radiography provides pulmonary ventilation and circulation findings as slight changes in pixel value even without the use of contrast media; the interpretation is challenging and crucial for a better understanding of pulmonary function. The basic concept was proposed in the 1980s; however, it was not realized until the 2010s because of technical limitations. Dynamic FPDs and advanced digital image processing played a key role for clinical application of dynamic chest radiography. Pulmonary ventilation and circulation can be quantified and visualized for the diagnosis of pulmonary diseases. Dynamic chest radiography can be deployed as a simple and rapid means of functional imaging in both routine and emergency medicine. Here, we focus on the evaluation of pulmonary ventilation and circulation. This review article describes the basic mechanism of imaging findings according to pulmonary/circulation physiology, followed by imaging procedures, analysis method, and diagnostic performance of dynamic chest radiography.
动态胸部X线摄影是一种基于平板探测器（FPD）的功能性X线成像技术，作为胸部X线摄影的一项补充检查进行。FPD的大视野（FOV）允许实时观察整个肺部，并同时对膈肌运动进行左右评估。最重要的是，即使不使用造影剂，动态胸部X线摄影也能通过像素值的细微变化提供肺通气和循环的表现；其解读具有挑战性，但对于更好地理解肺功能至关重要。其基本概念在20世纪80年代提出；然而，由于技术限制，直到2010年代才得以实现。动态FPD和先进的数字图像处理技术对动态胸部X线摄影的临床应用起到了关键作用。肺通气和循环可以进行量化和可视化，以用于肺部疾病的诊断。动态胸部X线摄影可作为常规医学和急诊医学中一种简单快速的功能成像手段。在此，我们重点关注肺通气和循环的评估。这篇综述文章描述了根据肺/循环生理学的成像表现基本机制，随后介绍了动态胸部X线摄影的成像程序、分析方法和诊断性能。
