Fundamental researches of the histologic estimate using morphologic changes of bronchioloalveolar carcinoma between inspiratory and expiratory CT

CT上细支气管肺泡癌（BAC后）有磨玻璃样混浊，考虑排除Noguchi分类C型可引起淋巴结转移的试验，但在这种情况下，很难说已经足够确定。我们在本研究中关注的是BAC的粗糙结构，通过吸气和呼气CT测量直径变化率、吸收水平变化率，假设BAC的等级为“坚固”肿瘤，表示“硬度”，并根据结果尝试BAC的等级类比。结果没有发现显著性差异，但在Noguchi分类B型与C型之间存在恒定的趋势。因此，通过吸气和呼气CT显示了提取临床重要的Noguchi分类C型的可能性。

A trial to exclude Noguchi classification type C that can cause lymph node metastases is considered in the bronchioloalveolar carcinoma(following BAC) with the ground glass opacity by CT, but there is it in the situation that is hard to say to have established it enough. We paid our attention to the structure that was a rough work of BAC in this study and hypothesized that grade of BAC was high as a "firm" tumor and expressed "hardness" by measuring a diameter rate of change, absorption level rate of change by inspiratory and expiratory CT and tried a grade analogy of BAC based on the results.The significant difference was not obtained at all at results, however, a constant tendency was found between Noguchi classification type B vs. type C. Therefore, likelihood of the extraction of the Noguchi classification type C which is clinically important was shown by using inspiratory and expiratory CT.