RT Journal Article
SR Electronic
T1 Dynamic CT Scanning of Spinal Column Trauma
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 561
OP 565
VO 3
IS 5
A1 Brown, Ben Maurice
A1 Brant-Zawadzki, Michael
A1 Cann, Christopher E.
YR 1982
UL http://www.ajnr.org/content/3/5/561.abstract
AB Dynamic sequential computed tomographic scanning with automatic table incrementation uses low milliampere-second technique to eliminate tube cooling delays between scanning slices and, thus, markedly shortens examination times. A total of 25 patients with spinal column trauma involving 28 levels were studied with dynamic scans and retrospectively reviewed. Dynamic studies were considerably faster than conventional spine examinations and yielded reliable diagnoses. Bone disruption and subluxation was accurately evaluated, and the use of intrathecal metrizamide in low doses allowed direct visualization of spinal cord or radicular compromise. Multiplanar image reformation was aided by the dynamic incrementation technique, since motion between slices (and the resulting misregistration artifact on image reformation) was minimized. A phantom was devised to test spatial resolution of computed tomography for objects 1–3 mm in size and disclosed minimal differences for dynamic and conventional computed tomographic techniques in resolving medium-to-high–contrast objects.