Fallen contrast sign
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Citation:
Deng F, Fallen contrast sign. Reference article, Radiopaedia.org (Accessed on 14 Mar 2025) https://doi.org/10.53347/rID-73522
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73522
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At the time the article was created Francis Deng had no recorded disclosures.
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The fallen contrast sign refers to a trace of concentrated contrast material layering along the dependent left atrial wall during contrast-enhanced cardiac CT, suggestive of a right-to-left shunt. The finding has primarily been described as an indirect sign in sinus venosus atrial septal defect 1-4.
References
- 1. Rojas CA, El-Sherief A, Medina HM, Chung JH, Choy G, Ghoshhajra BB, Abbara S. Embryology and developmental defects of the interatrial septum. (2010) AJR. American journal of roentgenology. 195 (5): 1100-4. doi:10.2214/AJR.10.4277 - Pubmed
- 2. Johri AM, Rojas CA, El-Sherief A, Witzke CF, Chitty DW, Palacios IF, Passeri JJ, King ME, Abbara S. Imaging of atrial septal defects: echocardiography and CT correlation. (2011) Heart (British Cardiac Society). 97 (17): 1441-53. doi:10.1136/hrt.2010.205732 - Pubmed
- 3. Dwivedi AN, Ishan K, Suchi T. Computed Tomography Pulmonary Angiography in Evaluation of Congenital Heart Diseases. Journal of Cardiovascular Disease Research. 2014;5(3):13-21.doi:10.5530/jcdr.2014.3.4
- 4. Rojas CA. Septal Defects and Other Cardiovascular Shunts. In: Abbara S, Kalva SP, eds. Problem Solving in Radiology: Cardiovascular Imaging. (2013) ISBN: 9781437727685
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