pet therapy
2.Compared with conventional staging methods,7 cases were up-staged and 2 cases were down-staged by PET/CT,which led to the change of therapy in 8 cases.
3.As an advanced functional imaging, through influencing clinical staging of non-small cell lung cancer, positron emission tomography (PET) has an important impact on the establishment and implement of its 3-dimensional conformal radiation therapy planning. In patients with atelectasis, obstructive pneunonitis, pleural effusion, and thoracic extravasate, target volume definition with CT is somewhat difficult.
4.Compared with PET imaging,DHC imaging plays an important role in the diagnosis of lung cancer,its role including differentiation of malignant lesions from benign ones,staging of malignant lesions,detection of recurrence and monitoring response to therapy.

