aortic insufficiency jet
The retrograde flow of blood through an incompetent aortic valve during diastole, visualized on echocardiography as a color Doppler signal.
Full Definition
An aortic insufficiency jet represents the pathological backflow of blood from the aorta into the left ventricle through a leaking aortic valve during diastole. On color Doppler echocardiography, this appears as a mosaic pattern extending from the aortic valve into the left ventricular cavity. The jet's characteristics—including length, width, area, and velocity—help quantify the severity of aortic regurgitation. During cardiac anesthesia, monitoring AI jets is crucial for assessing valve competence, detecting acute regurgitation from surgical manipulation, and evaluating repair effectiveness.
Usage
Usage note: Distinguish from forward flow jets; describe jet characteristics for severity assessment.
In Context
- "TEE revealed a narrow aortic insufficiency jet consistent with mild regurgitation." — Intraoperative echocardiography report
- "The AI jet extended to the papillary muscle level, indicating severe aortic insufficiency." — Echocardiography interpretation