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Journal of Korean Neurosurgical Society 1994;23(11): 1291-1298.
CT and MRI Compatibility of Titanium Pedicular Screw System(DipasonTM).
Jong Sun Park, Ha Young Cho, Eui Joong Yang, Suk Jung Jang, Young Suk Kim, Ho Shin
1Department of Neurosurgery, College of Medicine, Chosun University, Kwangju, Korea.
2Department of Radiology, College of Medicine, Chosun University, Kwangju, Korea.
ABSTRACT
After spinal fixation using conventional stainless steel screw fixation system, postoperative evaluation of spinal canal and identification of screw positions are very difficult because of severe image halation on computerized tomography(CT) or magnetic resonance imaging(MRI). As a result, diagnosis is interfered in cases of screw malposition, infection, and when demonstration of spinal decompression is needed. For this reason, titanium implants have been developed. Titanium is neither magnetic nor paramagnetic, so it produces minimal artifacts on CT or MRI. Titanium pedicular screw system(DipasonTM) is one of these instruments. In this study, the authors investigated the compatibility of this instrument with CT and MRI postoperatively. The use of titanium pedicular screw system permits high quality image of spinal cord, nerve root and screws on CT and MRI.
Key Words: Computerized tomography; Magnetic resonance imaging; Compatibility; Image halation; Titanium pedicular screw system
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