The choice of modern methods in preoperative check, that can maximize the safety and the accuracy by measuring the patients operabity and tumors resectability, is a key point in the therapeutic strategy, which initially assess the pros and cons and finally determines the applicability of the surgical treatment.

Classified and customized procedures, related to the individual characteristics of each patient and his problem, drive each patient to undergo specific tests, that are able to calculate the operabity and resectability, such as the following:

• Spirometry (respiratory mechanics)
• Lung diffusion for carbon monoxide [DLco] (lung parenchyma functional capability)
• VO2max (cardiorespiratory cooperation or interaction)
• Transthoracic echocardiogram
• Perfusion scintigraphy (or ventilation-perfusion) lung
• Dynamic lung echography
• Transthoracic lungs echography
• Computed tomography
• Magnetic resonance imaging
• PET-CT
• Video Bronchoscopy
• Endobronchial ultrasound (EBUS)