说明：  可以通过计算机断层技术(CT)、磁共振成像(MRI)、正电子计算机断层扫描（PET）和超声(US)等医学影像技术得到病人病变部位的一组二维断层图像。二维平面图像主要用于显示平面图像中人们感兴趣的区域。通过研究对象的一组平行截面图重建物体的三维图像是计算机图形学和医生的一个重要的研究方向。
(By computed tomography technology (CT), magnetic resonance imaging (MRI), is computer tomography (PET) and ultrasound (US) and other medical imaging technology is a group of patients with lesions of the two-dimensional CT images. Two-dimensional image is used to display graphic images in people' s areas of interest. By studying the object of a set of parallel sections of the three-dimensional image reconstruction of objects in computer graphics and a doctor is an important research direction.)