[Experimental study of orbital volume using computer assisted technology].
OBJECTIVE
To evaluate the accuracy of the Simplant analytic software for orbital volumetric measurement.


METHODS
The volume of 10 orbits from 5 skulls was evaluated with the Simplant analytic software, and compared with the volume obtained by direct measurement using the water displacement method. The accuracy of volume measurement using Simplant software was assessed statistically by paired t test with SAS6.12 software package.


RESULTS
The mean volume was found to be (28.82+/-1.65)ml by direct impression and (28.81+/-1.65)ml by the Simplant analytic software. There was no significant difference between the two methods (P>0.05). The correlation between the techniques was found to be high (r=0.971).


CONCLUSIONS
The Simplant analytic software for orbital volumetric measurement is a simple and accurate method. Supported by Shanghai Leading Academic Discipline Project (Grant No.Y0203).
Wang
Yu-Xin
YX
Department of Oral and Maxillofacial Surgery, Nanjing Stomatology Hospital, Nanjing University. Nanjing 210008, Jiangsu Province, China. www750726@tom.com
Tang
You-Sheng
YS
Shi
Jun
J
Xu
Bing
B
D006801:Humans; D009915:Orbit / Q000033:anatomy & histology*; D012984:Software; D014057:Tomography, X-Ray Computed