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Improved 2D time-of-flight angiography using a radial-line k-space acquisition MAGNETIC RESONANCE IN MEDICINE Nielsen, H. T., Olcott, E. W., Nishimura, D. G. 1997; 37 (2): 285-291

Abstract

For flow imaging applications, radial-line k-space acquisition methods offer advantages over conventional 2DFT methods. Specifically, radial-line acquisition methods mitigate artifacts resulting from pulsatile flow while offering a potential reduction in scan times. In this paper, radial-line and 2DFT acquisitions are compared in a two-dimensional time-of-flight angiography sequence. The twisting radial-line (TwiRL) trajectory, a variant of 2D projection reconstruction, is used to represent the family of radial-line trajectories. In both phantom and in vivo studies, the TwiRL images demonstrate improved vessel depiction including a more uniform signal intensity and better delineation of the vasculature in comparison with images obtained via the 2DFT method.

View details for Web of Science ID A1997WD27200020

View details for PubMedID 9001154