Variable anisotropic FOV for 3D radial imaging with spiral phyllotaxis (VASP).

ABSTRACT:

Purpose

To develop a new 3D radial trajectory based on the natural spiral phyllotaxis (SP), with variable anisotropic FOV.

Theory & methods

A 3D radial trajectory based on the SP with favorable interleaving properties for cardiac imaging has been proposed by Piccini et al (Magn Reson Med. 2011;66:1049-1056), which supports a FOV with a fixed anisotropy. However, a fixed anisotropy can be inefficient when sampling objects with different anisotropic dimensions. We extend Larson's 3D radial method to provide variable anisotropic FOV for spiral phyllotaxis (VASP). Simulations were performed to measure distance between successive projections, analyze point spread functions, and compare aliasing artifacts for both VASP and conventional SP. VASP was fully implemented on a whole-bod

SUBMITTER: Krishnamoorthy G 

PROVIDER: S-EPMC7692914 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature