PubMed · 7237983
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W Drymalski. 1981. Cortical blindness.. https://pubmed.ncbi.nlm.nih.gov/7237983/
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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.
A critical analysis of the literature suggests that there is no clearly superior technique for mesenteric revascularization and that the choice of operation must be individualized. Bypass grafting using either an antegrade or retrograde technique with prosthetic or autogenous conduits should produce excellent long-term results for most patients with this complex surgical problem. In most situations multiple vessel revascularizations are preferred. Surgeons caring for such patients must have the ability to utilize all available techniques to ensure optimal outcomes.