Generation of Curved Planar Reformations from Magnetic Resonance Images of the Spine
We present a novel method for curved planar reformation (CPR) of spine images obtained by magnetic resonance (MR) imaging. CPR images, created via a transformation from image-based to spine-based coordinate system, follow the structural shape of the spine and allow the whole course of the curved structure to be viewed in a single image. The spine-based coordinate system is defined on the 3D spine curve and on the axial vertebral rotation, both described by polynomial models. The 3D spine curve passes through the centers of vertebral bodies, and the axial vertebral rotation determines the rotation of vertebral spinous processes around the spine. The optimal polynomial parameters are found in an optimization framework, based on image analysis. The method was evaluated on 19 MR images of the spine from 10 patients.
KeywordsVertebral Body Idiopathic Scoliosis Ground Truth Data Spine Curve Spine Image
- 1.Rothman, S., Dobben, G., Rhodes, M., Glenn, W.J., Azzawi, Y.M.: Computed tomography of the spine: Curved coronal reformations from serial images. Radiology 150, 185–190 (1984)Google Scholar
- 4.Liljenqvist, U., Allkemper, T., Hackenberg, L., Link, T., Steinbeck, J., Halm, H.: Analysis of vertebral morphology in idiopathic scoliosis with use of magnetic resonance imaging and multiplanar reconstruction. Journal of Bone and Joint Surgery 84, 359–368 (2002)Google Scholar
- 9.Nash, C., Moe, J.: A study of vertebral rotation. Journal of Bone and Joint Surgery 51, 223–229 (1969)Google Scholar