Lung Tumour Volume Database

Patients with locoregional non small cell lung cancer are registered on study after tumour volumes are outlined by a radiologist and prior to the commencement of any treatment. All patients must have recorded the volume of disease in the primary tumour (and of involved nodes \> 1 cm diameter) as measured from a CT scan performed according to a standard set of conditions. Following registration patients are treated with Definitive radiotherapy with or without chemotherapy. Follow-up will occur with the collection of a minimum amount of data every 12 months from the date of registration on study. Quality Assurance procedures will be implemented with each site that participates in the study.