Waitzman A A, Posnick J C, Armstrong D C, Pron G E
Division of Plastic Surgery, Hospital for Sick Children, Toronto, Ontario, Canada.
Cleft Palate Craniofac J. 1992 Mar;29(2):112-7. doi: 10.1597/1545-1569_1992_029_0112_csmboc_2.3.co_2.
Computed tomography (CT) is a useful modality for the management of craniofacial anomalies. A study was undertaken to assess whether CT measurements of the upper craniofacial skeleton accurately represent the bony region imaged. Measurements taken directly from five dry skulls (approximate ages: adults, over 18 years; child, 4 years; infant, 6 months) were compared to those from axial CT scans of these skulls. Excellent agreement was found between the direct (dry skull) and indirect (CT) measurements. The effect of head tilt on the accuracy of these measurements was investigated. The error was within clinically acceptable limits (less than 5 percent) if the angle was no more than +/- 4 degrees from baseline (0 degrees). Objective standardized information gained from CT should complement the subjective clinical data usually collected for the treatment of craniofacial deformities.
计算机断层扫描（CT）是用于颅面畸形管理的一种有用的检查方法。开展了一项研究以评估颅面骨骼上部的CT测量是否能准确代表所成像的骨区域。将直接从五个干燥颅骨（大致年龄：成人，18岁以上；儿童，4岁；婴儿，6个月）获取的测量结果与这些颅骨的轴向CT扫描测量结果进行比较。发现直接（干燥颅骨）测量和间接（CT）测量之间具有极好的一致性。研究了头部倾斜对这些测量准确性的影响。如果角度与基线（0度）相差不超过+/- 4度，则误差在临床可接受范围内（小于5%）。从CT获得的客观标准化信息应补充通常为治疗颅面畸形而收集的主观临床数据。
