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V/P SPECT of a patient with a severe COPD (GOLD 3).
Notes: On the frontal slice, uneven distribution of ventilation and absent ventilation are seen, as is perfusion in the upper lobe (blue arrows indicating emphysema). Hot spots represent changes in small airway disease (dotted blue arrow on sagittal slice).
Abbreviations: GOLD, Global Initiative for Chronic Obstructive Lung Disease; V/P SPECT, ventilation/perfusion single-photon emission computed tomography.
