[Three dimensional reconstruction study of multi-slice helical CT imaging on optic canal area].
OBJECTIVE
To investigate the accuracy and clinical application of multi-slice spiral CT imaging on optic canal area.


METHODS
Forty intact specimens of human corpse head were tested with three dimensional reconstruction of multi-slice spiral CT imaging. The results of radiology and anatomy were compared on adjacent structures of optic canal interior wall and its developmental relationship with sphenoid sinus.


RESULTS
(1) The high spatial resolution of integrity could be obtained with dimensional processing technique. The anatomical structure of optic canal and its surrounding area could be demonstrated clearly. (2) With the technique of virtual endoscopy, the interior reconstruction of optic canal could demonstrate the inner topography of optic canal, the reconstruction image of which was identical to that of the control subjects. (3) There was no significant difference between the data of multi-slice spiral CT imaging and that of anatomy (P > 0.05).


CONCLUSIONS
Associated application of dimensional processing technique and virtual endoscopy, not only can the subtle structures of optic canal be demonstrated and measured, but also the detailed information on spatial relationships of optic canal area can be provided for operation.
Li
Zhihai
Z
Department of Otolaryngology, Taizhou Municipal Hospital, Taizhou, China. li00hai@tom.com
Gao
Qixue
Q
Cal
Zhiyi
Z
Tao
Baohong
B
Lü
Jingyao
J
D000328:Adult; D044466:Asian People; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D008297:Male; D009900:Optic Nerve / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D036542:Tomography, Spiral Computed