ＣＴ介入放射技术是经皮非经血管介入技术 ,它包括ＣＴ引导经皮活检和介入性治疗。ＣＴ可用于全身各系统介入技术的引导 ,凡透视、超声不能引导的部位均可用ＣＴ引导。ＣＴ扫描分辨率高 ,对比度好 ,可清楚显示病变大小、外形、位置以及病变与周围结构的空间关系。ＣＴ增强扫描 CT interventional radiology is a percutaneous non-vascular interventional technique that includes CT-guided percutaneous biopsy and interventional therapy. CT can be used to guide the interventional techniques of various systems in the whole body, and CT guidance can be used in all areas where fluoroscopy or ultrasound can not guide. The CT scan has high resolution and good contrast. It can clearly show the lesion size, shape, location, and the spatial relationship between the lesion and surrounding structures. CT enhanced scan