MR fingerprinting using fast imaging with steady state precession (FISP) with spiral readout.

ABSTRACT:

Purpose

This study explores the possibility of using gradient echo-based sequences other than balanced steady-state free precession (bSSFP) in the magnetic resonance fingerprinting (MRF) framework to quantify the relaxation parameters .

Methods

An MRF method based on a fast imaging with steady-state precession (FISP) sequence structure is presented. A dictionary containing possible signal evolutions with physiological range of T1 and T2 was created using the extended phase graph formalism according to the acquisition parameters. The proposed method was evaluated in a phantom and a human brain. T1 , T2 , and proton density were quantified directly from the undersampled data by the pattern recognition algorithm.

Results

T1 and T2 values from the phantom demonstrate that

SUBMITTER: Jiang Y 

PROVIDER: S-EPMC4461545 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature