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. 2017 May 26;12:1579–1587. doi: 10.2147/COPD.S131847

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© 2017 Bajc et al. This work is published and licensed by Dove Medical Press Limited

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V/P SPECT of a patient with a severe COPD (GOLD 3).

Note: Uneven distribution of ventilation with hot spots (indicating obstructive small airways disease), area with absent ventilation and perfusion in the upper lobe (blue arrows indicating emphysema), as well as area with absent perfusion and preserved ventilation (mismatch – red arrows indicating pulmonary embolism).

Abbreviations: GOLD, Global Initiative for Chronic Obstructive Lung Disease; V/P SPECT, ventilation/perfusion single-photon emission computed tomography.