螺旋CT三维重建在颧骨颧弓整形术中的应用

Clinical Application of Three Dimensional Spiral CT in Reduction Plasty of Malar and Zygoma

[目的]探讨多层螺旋CT在颧弓截骨手术中的应用价值。[方法]对110例颧弓截骨手术患者进行MSCT检查，并通过多平面重建法（MPR）、三维表面遮盖法（sSD）及容积重建技术（VRT）观察颧弓的形态并测量相应数据。[结果]110例患者均获得了精确的颧弓弦长、弧高等参数，所有患者手术后获得了满意的效果。[结论]MSCT三维重建能较好地显示颧弓的三维立体解剖结构，提高手术的准确性，为手术方案的合理制定提供了科学依据。

[Objective]To evaluate the application value of multi-slice spiral CT（MSCT） in reduction plasty of malar and zygoma. [Methods] A total of 110 cases were examined with MSCT scanning and multiplanar reconstruction（MPR）, surface shaded display（SSD）and volume rendering technique（VRT）to observe the de- tails of mala and zygoma. [Results]The data of the zygoma and zygomatic arch were measured accurately. All cases obtained satisfactory results after undergoing reduction malar plasty. [Conclusion] Three dimensional CT imaging is important for displaying the anatomic construction of malar and zygoma. It can improve the ac- curacy of surgery and provide a scientific basis for reasonable surgical planning.