Patent ID: 8648593
Filing Date: 2014-02-11
Classification: G01R

Abstract:
1. A magnetic resonance imaging (MRI) apparatus, comprising: a processor; a memory; and an interface that connects the processor, the memory, and a set of logics, the set of logics comprising: a pulse sequence logic configured to control the MRI apparatus to apply a bSSFP pulse sequence to an object having flowing spins and non-flowing spins, where the flowing spins include one or more of, through plane flowing spins, and in plane flowing spins; a periodic magnetization preparation logic configured to control the MRI apparatus to perform differentiated velocity encoding by periodically applying bipolar velocity encoding gradients on different axes; a transverse magnetization spoiling logic configured to control the MRI apparatus to mitigate residual transverse magnetization produced as a result of the bSSFP pulse sequence; an acquisition logic configured to control the MRI apparatus to acquire an NMR signal from the object in response to the bSSFP pulse sequence, the differentiated velocity encoding, and the transverse magnetization mitigation, where the NMR signal includes NMR signal from flowing spins and NMR signal from non-flowing spins, where the NMR signal from flowing spins appears in a desired ratio with respect to NMR signal from non-flowing spins; and an image logic configured to control the MRI apparatus to produce an image from the NMR signal.