: To make the magnetic resonance signal immune to phase errors caused by constant velocity motion.
GMN, also known as , involves adding extra gradient pulses (lobes) to a pulse sequence to ensure that moving spins do not accumulate a net phase by the time the echo is formed. Gradient - Moment 09
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)? : To make the magnetic resonance signal immune