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Steady-state diffusion-weighted imaging (DWI) has long been recognized to offer potential benefits over conventional spin-echo methods. This family of pulse sequences is highly efficient and compatible with three-dimensional acquisitions, which could enable high-resolution, low-distortion images. However, the same properties that lead to its efficiency make steady-state imaging highly susceptible to motion and create a complicated signal with dependence on T(1), T(2) and flip angle. Recent developments in gradient hardware, motion-mitigation techniques and signal analysis offer potential solutions to these problems, reviving interest in steady-state DWI. This review offers a description of steady-state DWI signal formation and provides an overview of the current methods for steady-state DWI acquisition and analysis.

Original publication

DOI

10.1002/nbm.1509

Type

Journal article

Journal

NMR Biomed

Publication Date

08/2010

Volume

23

Pages

781 - 793

Keywords

Artifacts, Brain, Diffusion, Diffusion Magnetic Resonance Imaging, Humans, Image Enhancement, Image Processing, Computer-Assisted, Models, Theoretical, Motion