temporal resolution
The ability of a cardiac imaging technique to distinguish events occurring at different times during the cardiac cycle.
Full Definition
Temporal resolution in cardiac imaging refers to the minimum time interval between consecutive image frames that can be acquired and reconstructed, determining how well rapid cardiac motion can be captured and analyzed. High temporal resolution is essential for accurate assessment of cardiac function, valve motion, and wall motion abnormalities. In echocardiography, temporal resolution depends on frame rate, while in cardiac MRI and CT, it relates to acquisition window duration and reconstruction algorithms. Poor temporal resolution can lead to motion artifacts and inaccurate functional measurements, particularly at higher heart rates.
Usage
Usage note: Specify the acquisition window or frame rate when discussing temporal resolution.
In Context
- "High temporal resolution was achieved with a 20 ms acquisition window per cardiac phase." — Cardiac MRI protocol
- "Poor temporal resolution resulted in blurring of the mitral valve leaflets during rapid motion." — Image quality assessment