目的： 研究中低档ＣＴ 机对耳部ＣＴ 扫描后，骨滤波重建前后耳部图像的优缺点。材料与方法： 用岛津ＳＣＴ３０００ＴＸ ＣＴ 机对耳部进行横断面薄层扫描后，用骨滤波重建技术处理图像，并对重建前后图像进行分析。结果： 耳部ＣＴ 扫描后，进行骨滤波重建所得图像要比重建前的图像不论在清晰度还是分辨率方面都好得多，与高档ＣＴ 机所得的图像相似。结论： 中低档ＣＴ 机对耳部扫描后，最好采用骨滤波重建处理图像，这是中低档机得到耳部清晰图像的很好途径。 OBJECTIVE: To study the advantages and disadvantages of the ear images before and after bone filter reconstruction after CT scanning of middle and low grade CT ear. MATERIALS AND METHODS: After scanning the ear with Shimadzu SCT3000TX CT scanner, the image was processed by bone filter reconstruction and the images before and after reconstruction were analyzed. Results: After the ear CT scan, the image obtained by the bone filter reconstruction is much better than the image before the reconstruction in terms of definition or resolution, similar to the image obtained by the high-grade CT machine. Conclusion: After the middle and low-end CT scan the ear, it is best to use the bone filter to reconstruct the image processing, which is a good way to obtain a clear image of the middle and low gear ear.