Unusual pulmonary arterial filling defect caused by systemic to pulmonary shunt in the setting of chronic lung disease demonstrated by dynamic 4D CTA

Kianoush Ansari-Gilani, Robert C. Gilkeson, Edward M. Hsiao, Prabhakar Rajiah

Research output: Contribution to journalArticle

3 Citations (Scopus)
62 Downloads (Pure)

Abstract

Even though pulmonary embolism is by far the most common cause of filling defect in the pulmonary arterial system, other less common etiologies should be considered especially in the setting of atypical clinical scenario or unusual imaging findings. Unusual pattern of filling defect in the pulmonary artery in the setting of chronic inflammatory/fibrotic parenchymal lung disease should raise the concern for systemic to pulmonary artery shunt. This diagnosis is typically made by conventional angiography. Dynamic 4D CT angiography however can be a safe, noninvasive and effective alternative tool for making such a diagnosis. It has the added value of multiplanar reconstruction capabilities and providing detailed anatomy which can be vital for interventional radiologists when planning their approach for possible intervention. We present 2 cases of such shunts, and illustrate the demonstration of these shunts by using dynamic 4D CT angiography.
Original languageEnglish
Pages (from-to)17-23
Number of pages7
JournalJournal of Radiology Case Reports
Volume9
Issue number11
DOIs
Publication statusPublished - 2015

Bibliographical note

Copyright the Author(s) 2015. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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