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目的 寻找头颅侧位片的最佳扫描分辨率。方法 随机选择 2 0张头颅侧位片 ,每张胶片分别以 5种不同的分辨率 ( 72dpi,10 0dpi ,15 0dpi,2 0 0dpi,3 0 0dpi)扫描输入计算机。使用头影测量软件测量每张X线片 ,并比较不同分辨率对测量结果的影响。结果 5种不同扫描分辨率所得的头影测量结果间差异无显著性。结论 头颅侧位片扫描时的最佳分辨率为 72dpi。
Objective To find the optimal scan resolution of cephalometric slices. Methods Twenty cases of cephalometric slices were randomly selected and each film was scanned into the computer with five different resolutions (72dpi, 100dpi, 150dpi, 200dpi, 300dpi). Cephalometric software was used to measure each radiograph and to compare the effects of different resolutions on the measurement results. Results There was no significant difference between the Cephalometric results obtained from 5 different scanning resolutions. Conclusion The optimal resolution of cephalometric slices is 72dpi.