myocardial nulling
A cardiac MRI technique that suppresses normal myocardial signal to highlight pathological tissue, requiring precise technical description in imaging protocols.
Full Definition
Myocardial nulling describes a specialized cardiac MRI technique where pulse sequences are optimized to eliminate signal from normal heart muscle, thereby enhancing contrast with abnormal tissue such as scar or inflammation. For editors working with cardiac imaging manuscripts, this term requires careful distinction from 'signal nulling' in general or 'fat nulling' techniques. The method involves precise timing of inversion recovery pulses and appears frequently in late gadolinium enhancement protocols. Proper editorial usage ensures clarity between the technical process and the resulting image characteristics.
Usage
Usage note: Always use 'myocardial nulling' rather than 'cardiac nulling' for precision in cardiac imaging contexts.
In Context
- "Optimal myocardial nulling was achieved at an inversion time of 280 milliseconds." — Cardiac MRI protocol
- "Poor myocardial nulling resulted in suboptimal scar tissue visualization on delayed enhancement images." — Technical imaging report