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伴随着数字化成像技术在医学影像学领域的广泛发展, X线摄影这一起步最早的影像技术,今天终于步入了数字化的轨道。X线摄影是临床医师获得病人检查信息来源的重要方面,而数字化X线摄影则为疾病的诊断迈向一个新台阶。数字化X线摄影的分类大致分为两种,按探测器的成像方式来分:可分为线扫描和面扫描成像法;按X线摄影图像转换的方式来分:又可分为直接数字摄影和间接数字摄影。目前大都流行第二种分法,现按第二种分类方式分别简述它们的原理、特点及应用。
With the extensive development of digital imaging technology in the field of medical imaging, X-ray photography, the earliest video technology, has finally entered the digital track today. X-ray photography is an important aspect of the clinician’s source of information for patient examination, and digital radiography takes the diagnosis of disease to a new level. Digital X-ray photography is divided into two categories, according to the detector imaging methods to points: can be divided into line scanning and surface scan imaging method; according to the X-ray photography image conversion approach to points: can be divided into direct digital photography And indirect digital photography. At present, the second popular method is mostly popular, and the principles, characteristics and applications of the second method are summarized respectively according to the second classification method.