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ＨＲＣＴ（高分辨ＣＴ）图像是较常规ＣＴ具有更清晰的空间分辨率的图像。可明显提高图像质量，从而提高病灶细节以及正常和异常细微结构的显示能力，对配合临床诊断及指导临床治疗有着很高的实用价值。如何利用普及型ＣＴ机获得ＨＲＣＴ图像。我们做了技术上的改进，并在不增加硬件设备的基础上利用软件功能，提高一些技术参数，主要是扫描层厚，管电流及扫描时间，高分辨薄层重建，尽可能的缩小显示野，加大矩阵等。所得到的图像分辨率明显高于常规ＣＴ，如肺小结节的显示，腔隙性梗塞的检出率，可疑小腔隙与大的像素颗粒的辨别等。我们认为，进一步开发软件功能。会获得更加理想的ＨＲＣＴ图像
HRCT (High Resolution CT) images are images with sharper spatial resolution than conventional CT. Can significantly improve the image quality, thereby enhancing the details of the lesion and the normal and abnormal microstructure display ability, with the clinical diagnosis and guidance of clinical treatment has a high practical value. How to use popular CT machine to obtain HRCT images. We made technical improvements, and do not increase the hardware based on the use of software features to improve some of the technical parameters, mainly scanning layer thickness, tube current and scan time, high-resolution thin layer reconstruction, as much as possible to reduce the display field , Increase the matrix and so on. The obtained image resolution is significantly higher than conventional CT, such as the display of pulmonary nodules, the detection rate of lacunar infarction, suspicious small lacuna and the identification of large pixel particles. We think that further development of software features. Will get a better HRCT image