The accuracy of 3D-CT volume rendering for craniofacial linear measurements
Liu, D.-X.; Wang, C.-L.; Liu, L.; Dong, Z.-Y.; Ke, H.-F.; Yu, Z.-Y.
Shanghai Kou Qiang Yi Xue 15(5): 517-520
2006
ISSN/ISBN: 1006-7248 PMID: 17348228 Document Number: 602427
This study was designed to determine the consistency of craniofacial measurements using spiral computed tomography volume rendering by computer systems and sliding caliper. The study population consisted of 12 cadaver heads which were examined with spiral CT. The archived CT data were transferred to a workstation, and 3D-CT volume rendered images were generated using computer graphics tools. Linear measurements (n = 20), based upon conventional craniometric anatomical landmarks (n = 16) were made, by Display Tools and sliding caliper respectively. The consistency between the two measurements was analyzed by paired t test using SAS9.0 software package. The results demonstrated no statistically significant difference between imaging measurement and physical measurement, P > 0.05. There is significant consistency between spiral CT measurement and physical measurement for craniofacial linear distance. 3D-CT volume rendering images using craniometric measurements can be used for clinical and basic studies in stomatology.