Identifying the heterogeneity of COPD by V/P SPECT : A new tool for improving the diagnosis of parenchymal defects and grading the severity of small airways disease
Introduction: Airway obstruction and possible concomitant pulmonary diseases in COPD cannot be identified conventionally with any single diagnostic tool. We aimed to diagnose and grade COPD severity and identify pulmonary comorbidities associated with COPD with ventilation/perfusion single-photon emission computed tomography (V/P SPECT) using Technegas as the functional ventilation imaging agent.
