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Journal of Korean Neurosurgical Society 1996;25(7): 1468-1472.
Three-dimensional CT Imaging in the Evaluation of Craniosynostosis.
Se Hyuck Park, Dae Young Yoon, Kyu Ho Lee, Sae Moon Oh
1Department of Neurosurgery, Kangdong Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Korea.
2Department of Radiology, Kangdong Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Korea.
Technical advances in computer image analysis have made possible three-dimensional(3D) surface Informations of anatomic structures from contiguous axial CT slices. We have recently utilized this 3D CT reconstruction with spiral CT scanner in 6 consecutive patients with primary or secondary craniosynostosis to assess the presence and extent of synostosis, associated calvarial deformity and to facilitate surgical planning of the craniectomy site. High resolution 3-mm contiguous CT sections were obtained and 3D shaded-surface reconstruction image generated after reformation at 2-mm interval. In each case 3D CT demonstrated the exact extent of synostosis, and in 3 cases it was confirmed by surgical inspection. 3D CT images facilitated surgical planning by precisely localizing the proper site for craniectomy. Three-dimensional CT with shaded-surface display may be a useful adjunct to imaging and surgical planning in the patients with craniosynostosis, as well as a useful follow-up imaging study during observation or after surgery.
Key Words: Craniosynostosis; Three-dimensional CT reconstruction; Shaded-surface display
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