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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 21:282-289 (2 2000)
© 2000 American Society of Neuroradiology

ARTICLE

Registration of Three-Dimensional MR and CT Studies of the Cervical Spine

Ashok Panigrahy^a, Shelton D. Caruthers^a, Jaroslaw Krejza^a, Patrick D. Barnes^a, Sami G. Faddoul^a, Lynn A. Sleeper^a and Elias R. Melhem^,a

^a From the Department of Radiology, Boston Medical Center, Boston, MA (A.P., S.D.C., J.K., S.G.F., E.R.M.); the Department of Radiology, Children's Hospital, Boston, MA (A.P., P.D.B.); Philips Medical Systems, N.A., Shelton, CT (S.D.C.); and New England Research Institutes, Watertown, MA (L.A.S.).

Summary: A three-dimensional image registration technique for CT and MR studies of the cervical spine was evaluated for feasibility and efficacy. Registration by means of external fiducial markers was slightly more accurate than registration by anatomic landmarks. The interrelationships between bony (eg, neural foramina) and soft tissue structures (eg, nerve roots) in the cervical spine were more conspicuous on registered images than on conventional displays. Registration of CT and MR images may be used to examine more precisely the relationships between bony and soft tissue structures of the cervical spine.