Intermediate
Technical
IVT
Spontaneous Echo Contrast
Swirling smoke-like echoes seen on echocardiography within cardiac chambers, indicating blood stasis and increased thrombotic risk.
Full Definition
Spontaneous echo contrast refers to dynamic swirling smoke-like echoes observed on echocardiography, particularly in the left atrial appendage during atrial fibrillation. This phenomenon indicates blood stasis due to reduced flow velocities and is associated with increased risk of thrombus formation. The presence of spontaneous echo contrast influences anticoagulation decisions and procedural planning in electrophysiology procedures. It is graded from mild to severe based on density and swirling patterns.
Usage
Usage note: Often abbreviated as SEC in clinical documentation. Distinguish from actual thrombus formation.
In Context
- "The presence of spontaneous echo contrast in the left atrial appendage contraindicated immediate cardioversion." — Procedural report
- "Dense spontaneous echo contrast was noted on TEE, prompting extended anticoagulation therapy." — Imaging report
Also known as
SEC
smoke-like echoes
Don't confuse with
thrombus
artifact