一、概述 今日的医学诊断对于疾病诊断成像技术的依赖性越来越强。随着各种医学数字放射成像方法的出现,例如X射线计算机断层技术(CT);核磁共振技术(MRI);计算机放射成像技术(CR);血管数字减影技术(DSA);超声图像(US)以及核医学成像方法(平面闪烁成像planar scintigraphy,正电子发射断层PET)等,在临床诊断和治疗中的应用已越来越广泛,使得医学图像的数据量迅速增加。X射线检 I. Overview Today’s medical diagnosis is more and more dependent on disease diagnostic imaging technology. With the advent of a variety of medical digital radiography methods such as X-ray computed tomography (CT); magnetic resonance imaging (MRI); computed radiography (CR); digital subtraction of blood vessels (DSA) ) And nuclear medical imaging (planar scintigraphy, positron emission tomography) have become more and more widely used in clinical diagnosis and treatment, resulting in the rapid increase of medical image data volume. X-ray inspection