EP04.01-07 Optimal Predictors for Lung Cancer Using High-Resolution CT

Since the developments of low-dose helical computed tomography (HRCT) screening for early detection and early treatment of lung cancer, small-sized lung cancers with low density area on CT tend to be found. In particular, part-solid GGNs, which partially contain a solid component, have a high probability of being lung cancer and often require surgical treatment. However, these tumors, especially small-sized, are difficult to diagnose prior to surgical treatment. Based on the results of JCOG0802 and 0804 studies, reduction surgery for part-solid GGN has been selected, and the importance of preoperative diagnosis in determining the surgical method has increased.