Shirakawa T, Fukuda K, Miyamoto Y, Tanabe H, Tada S
Department of Radiology, Jikei University School of Medicine, Tokyo, Japan.
Radiology. 1994 Sep;192(3):809-11. doi: 10.1148/radiology.192.3.8058952.
To determine whether respiratory phase shift of lung masses at computed tomography (CT) indicates the absence of parietal pleural invasion.
Helical CT was performed during deep inspiration and expiration in 17 patients with peripheral lung tumors in contact with the chest wall. Changes in the location of the tumor relative to a chest wall marker were noted.
Six of 10 lesions in the middle or lower lobes showed substantial respiratory phase shift; all were proved at surgery not to have invaded the parietal pleura. Three of the 10 showed no respiratory phase shift and were found at surgery to have invaded the parietal pleura. CT findings for tumors in the upper lobe did not correlate with the surgical findings.
The presence of respiratory phase shift is a reliable indicator of the lack of parietal pleural invasion for tumors in the middle or lower lobes.
确定计算机断层扫描（CT）时肺肿块的呼吸期相移位是否表明无脏层胸膜侵犯。
对17例周围型肺肿瘤与胸壁接触的患者在深吸气和呼气时进行螺旋CT检查。记录肿瘤相对于胸壁标记物位置的变化。
10个位于中、下叶的病灶中有6个显示出明显的呼吸期相移位；所有这些病灶在手术中均被证实未侵犯脏层胸膜。10个病灶中有3个未显示呼吸期相移位，手术中发现已侵犯脏层胸膜。上叶肿瘤的CT表现与手术结果不相关。
呼吸期相移位的存在是中、下叶肿瘤无脏层胸膜侵犯的可靠指标。
