Fallen contrast sign

Last revised by Francis Deng on 14 Jan 2020

Citation, DOI, disclosures and article data

Citation:

Deng F, Fallen contrast sign. Reference article, Radiopaedia.org (Accessed on 07 May 2024) https://doi.org/10.53347/rID-73522

DOI:

https://doi.org/10.53347/rID-73522

Permalink:

https://radiopaedia.org/articles/73522

rID:

73522

Article created:

14 Jan 2020, Francis Deng ◉

Disclosures:

At the time the article was created Francis Deng had no recorded disclosures.

View Francis Deng's current disclosures

Last revised:

14 Jan 2020, Francis Deng ◉

Disclosures:

At the time the article was last revised Francis Deng had no recorded disclosures.

View Francis Deng's current disclosures

Revisions:

1 time, by 1 contributor - see full revision history and disclosures

Systems:

Cardiac

Sections:

Signs

Tags:

cases

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.