Radiology Key

of mutually orthogonal axes x, y and z, represented by unit vectors , and , respectively. In the case of 3D spine images, the image-based coordinate system usually corresponds to…

Fig. 1 Vertebral Body: A CT slice of vertebral body illustrates its regions: the VB region (in blue color), which is our region of interest to be segmented. Spinal processes and…

Fig. 1 Overview of the components involved for the 3D reconstruction of the spine from radiographic images This chapter presents the different techniques involved for generating the 3D reconstruction of a…

with nodes for the spinal structure as shown in Fig. 1. Each node represents a connected disc-vertebra-disc component of the spinal structure, in which both the discs and the vertebral body…

Fig. 1 Challenges of vertebrae labeling in clinical cases. a A MR scan of a scoliosis patient. b A CT scan of a scoliosis patient. c A MR scan with folding…

Fig. 1 Example of syndesmophyte growth from baseline (BL) to year 1 (Y1) visible on CT reformations but not on radiographs To overcome the limitations of radiographic methods, we designed a…

be m (m = 39) members of the aligned training surface models. Each member is described by a vector Xi with N (N = 5000) vertices: (1) A PDM was then obtained by applying…

and 3D points . The rigid transformations describe the relative position and orientation of each sub-model, and the points describe the local shape in the coordinate system associated with the…

Fig. 1 Examples of lytic and sclerotic metastases in the spine. First row lytic metastases. Second row sclerotic metastases 2 Background of Computer Aided Detection Detection of spinal metastases on CT…