肺小结节直径≤2 cm 时,CT 扫描技术检查是较好的诊断方法,但由于序列扫描中吸气水平不一致,以致难以用常规 CT 扫描法获得诊断。因此,作者提出一种新的 CT 扫描技术,即在1次呼吸中进行动态连续CT 扫描,用此法能有次序地评价肺小结节。作者选用 Siemens DRH CT 扫描机,在125kvp,280mAs、3秒扫描时间、2 mm 层厚条件下,对10例患者进行了扫描研究。所有患者均为已知或疑有15 Pulmonary nodules diameter ≤ 2 cm, CT scan technique is a better diagnostic method, but due to inconsistency in the sequence scan inspiratory level, it is difficult to get the diagnosis by conventional CT scan. Therefore, the authors propose a new CT scan technique, ie, dynamic continuous CT scan in one breath, to evaluate pulmonary nodules orderly. The authors selected a Siemens DRH CT scanner to scan 10 patients at 125kvp, 280mAs, 3s scan time and 2mm layer thickness. All patients are known or suspected 15