: To make the magnetic resonance signal immune to phase errors caused by constant velocity motion.
In the context of Magnetic Resonance Imaging (MRI), —often discussed in "Moment 09" or similar lecture series like Rad229 (2020) —is a technique used to minimize motion artifacts, particularly from blood flow or cerebrospinal fluid (CSF). What is Gradient Moment Nulling (GMN)? Gradient - Moment 09
: Additional gradient lobes are designed so that the "first moment" (the integral of gradient strength over time multiplied by time) equals zero at the echo time. Result : : To make the magnetic resonance signal immune