Magnetic resonance quantitative magnetic susceptibility imaging multi-echo phase fitting method

摘要: The invention discloses a magnetic resonance quantitative susceptibility imaging multi-echo phase fitting method, which comprises the steps of obtaining original data through gradient echo sequence acquisition; noise intensity level by calculating tested first pattern noise; arranging threshold for cross cutting signal according to level; selectively signal, whose amplitude is lower than threshold, and only allowing higher or equal participate fitting; field distribution map performing that satisfies employing weight least spuares; subsequent processing like time-domain unwinding background removing map. In this way, retrieved from source. method has advantages rapid accurate.