TY - JOUR T1 - Facial trauma and 3-D reconstructive imaging: insufficiencies and correctives. JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 885 LP - 892 VL - 13 IS - 3 AU - R A Levy AU - W T Edwards AU - J R Meyer AU - A E Rosenbaum Y1 - 1992/05/01 UR - http://www.ajnr.org/content/13/3/885.abstract N2 - PURPOSE To address the clinical relevance of and optimal technique for 3-D CT imaging of facial trauma.METHODS Bioengineered cadaveric models were developed to enhance the concepts of LeFort. Diverse CT imaging techniques were applied to obtain optimal data sets for processing on various 3-D workstations. The fidelity of the 3-D reconstructions was determined by comparison with photographs of the cadaveric models. Optimized 3-D images were then used in conjunction with the initial 2-D data sets to assess whether additional accuracy was contributed by the 3-D images in the evaluation of modeled facial fractures.RESULTS Image definition was heavily dependent upon the specific 3-D reconstruction algorithm and the processor utilized. Orbital fractures were best imaged when 1- to 1.5-mm coronal sections were processed on an advanced 3-D workstation. The 3-D CT images resulted in additional accuracy in the 2-D CT evaluation of facial fractures in 29% of trials.CONCLUSIONS We believe that bioengineered models of facial trauma--matched with appropriate CT scanning parameters--facilitate graphically reliable 3-D reconstructive imaging. 3-D reconstructions can improve accuracy in the 2-D CT evaluation of facial trauma. ER -