目的  探讨计算机X线摄影（computed radiography，CR）及直接数字化X线摄影 (digital 　radiography，DR)图像后处理技术在活体茎突解剖学观测中的意义。 方法  210例茎突受检者CR、DR拍片后，行反转，边缘锐化，调节窗宽、窗位，放大，4种联合后处理，在显示茎突清晰的图像上分别测量茎突长度、前倾角和内倾角。 结果  茎突长（24.34±3.55）mm；前倾角（19.21±3.08）°；内倾角（24.16±4.28）°。左、右侧茎突长度、前倾角、内倾角度无显著差异。 结论   CR、DR图像联合后处理使活体茎突显示清晰，能做出更为准确、全面的观测，在茎突疾病的诊治和确定手术术式中具有指导意义。

        Objective  To explore the application of image post-processing techniques after X-ray computer (computed radiography, CR) and direct digital X-ray photography (digital radiography, DR) in investigating anatomic features of styloid process in vivo.  Methods  210 volunteers with normal styloid processes underwent CR and DR. Based on the initial film, 4 kinds of postprocessing skills, including reversing, margin sharpening, window technique, magnifying and one combination with the other were performed. The length and inclination angle of styloid processes were measured. Results  The average length of styloid processes was （24.34±3.55）mm,  the average anterior inclination angle （19.21±3.08）°, and the medial anterior inclination angle （24.16±4.28）° respectively. Conclusions  CR and DR combination postprocessing demonstrates styloid processes in vivo clearly and accurately，among which film reversing is the most valuable.