phase-velocity encoding
A cardiac MRI parameter that determines flow sensitivity in phase-contrast sequences, requiring precise technical specification in imaging protocols.
Full Definition
Phase-velocity encoding (VENC) represents a critical technical parameter in cardiac phase-contrast MRI that determines the maximum detectable blood flow velocity without aliasing artifacts. For editors working with cardiac imaging publications, this term requires careful attention to hyphenation and distinction from 'velocity encoding' alone. The parameter directly affects image quality and quantitative flow measurements in great vessel and valvular assessments. Editorial precision is essential because incorrect VENC settings can lead to measurement errors, making accurate terminology crucial in methods sections and technical protocols.
Usage
Usage note: Always hyphenate 'phase-velocity encoding'. Can be abbreviated as VENC in subsequent references after first use.
In Context
- "Phase-velocity encoding was set to 150 cm/s to optimize aortic flow quantification without aliasing." — Cardiac MRI methodology
- "Inappropriate phase-velocity encoding resulted in velocity aliasing artifacts in the ascending aorta." — Technical imaging troubleshooting