[The role of radio-imaging techniques in the investigation of the pathophysiologic mechanisms in chronic obstructive bronchopneumonia. Part I. Role of imaging in the investigation of respiratory lesions caused by COPD].

Chronic obstructive pulmonary disease (COPD) is a common disease (4-6% of adults), with insidious onset and slow progression, which is why the disease remains under diagnosed especially in early stages. Most patients get medical attention in stage III, IV of disease, according to GOLD classification (Global Obstructive Lung Diseases). According to GOLD, priority in staging the disease severity is the evaluation of respiratory function, the FEV1. However radiographic evaluation of patients with risk (smokers or those working in polluted environment) may represent a first step in marking the changes in the lung and especially comorbidities. Since this disease is causing disability and a major socioeconomic problem, modern investigations, such as spiral computerised tomography (CT), multidetector computerised tomography (MDCT) and magnetic resonance (MRI) may be alternatives in diagnosis and early detection of disease.