虚拟结肠镜检查(VC), 也称为CT结肠镜检查, 同样是有效的, 侵入性更小,速度更快 标准的结肠镜检查结肠癌 筛选. 不像标准的结肠镜检查, it does not require sedation. You can drive yourself home after the test and return to normal daily activities.