Phase difference enhanced imaging method (padre), functional image creating method, phase difference enhanced imaging program, phase difference enhanced imaging apparatus, functional image creating apparatus, and magnetic resonance imaging (mri) apparatus

Abstract

A functional image creating method and a functional image creating apparatus, each enabling rendering of an activated region, are provided. A phase difference image PDr(x) is created using a complex image σr(x) created from an MR signal in an inactive state and a complex image σ'r(x) obtained by filtering the complex image σr(x). A phase difference image PDa(x) is created using a complex image σa(x) created from an MR signal in an active state and a complex image σ′a(x) obtained by filtering the complex image σa(x). Function signal images diff() and diff() are created using the phase difference images PDr(x) and PDa(x), respectively. A magnitude image Mr(x), a magnitude image Ma(x), a standard image, or a morphological image I(x) is masked with the function signal image diff() or diff(), thereby a function image I′(x) with an activated region rendered is created.