[Application of multislice helical computed tomography in maxillofacial distraction osteogenesis].
OBJECTIVE
To develop the method and investigate the value of the application of multislice helical computed tomography (CT) in the maxillofacial distraction osteogenesis.


METHODS
Twelve cases of maxillofacial distraction osteogenesis (3 in zygoma, 2 in maxilla, and 7 in mandible) were scanned by the multislice helical CT, then the reconstruction of three dimensional and fault image and the relative measurement were carried out to study the effect of distraction and osteogenesis.


RESULTS
The three dimensional image provided clear and high resolution stereoscopic view that the effect of distraction osteogenesis could be evaluated easily and exactly. The fault image could be set up in private computer by Mimics and the measurements, such as distance, thickness and density, could be performed as expected. The effect of 12 cases was satisfied, and the average distracted distance was 16.73 mm.


CONCLUSIONS
Basing on multislice helical CT scanning, the high resolution image reconstruction and relative measurement data could be obtained which could meet the need of clear and direct observation. Its application in the maxillofacial distraction osteogenesis is expecting and promising.
Niu
Xue-gang
XG
Dept. of Stomatology, The 252nd Hospital of Chinese PLA, Baoding 071000, China.
Zhao
Yi-min
YM
Han
Xiao-xian
XX
Hao
Yong
Y
Men
Shen-li
SL
D006801:Humans; D021621:Imaging, Three-Dimensional; D008334:Mandible; D008437:Maxilla; D019857:Osteogenesis, Distraction; D036542:Tomography, Spiral Computed; D014057:Tomography, X-Ray Computed