V/Q SPECT and SPECT/CT in pulmonary embolism

Geoffrey M. Currie, Dale L. Bailey

Research output: Contribution to journalArticlepeer-review


Ventilation and perfusion (V/Q) lung scintigraphy has been used in the assessment of patients with suspected pulmonary embolism for more than 50 y. Advances in imaging technology make SPECT and SPECT/CT feasible. This article will examine the application and technical considerations associated with performing 3-dimensional V/Q SPECT and the contribution of a coacquired CT scan. The literature tends to be mixed and contradictory in terms of appropriate investigation algorithms for pulmonary embolism. V/Q SPECT and SPECT/CT offer significant advantages over planar V/Q, with or without the advantages of Technegas ventilation, and if available should be the preferred option in the evaluation of patients with suspected pulmonary embolism.

Original languageEnglish
Pages (from-to)9-15
Number of pages7
JournalJournal of Nuclear Medicine Technology
Issue number1
Publication statusPublished - 01 Mar 2023


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