Automatic In-Plane Rotation for Doubly-Oblique Cardiac Imaging

Peter Kellman, J. Andrew Derbyshire, Elliot R. McVeigh

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: To develop and test a method for automatically calculating the in-plane rotation for doubly-oblique slice geometry in order to minimize wrap artifacts for a given FOV. Materials and Methods: The equations for in-plane rotation were formulated for doubly-oblique imaging of a cylindrical body with elliptical cross-section. Based on this formulation, automatic in-plane rotation was implemented and tested on a commercial scanner using nominal values for ellipticity of the body. Results: Short axis, doubly oblique, cardiac imaging were acquired with and without in-plane rotation. The desired in-plane rotation proved to be relatively insensitive to the ellipticity of the body, permitting an automatic solution based on a nominal value. Conclusion: In-plane rotation is desirable for doubly oblique imaging (e.g., cardiac applications), particularly for reduced-FOV accelerated imaging such as SENSE. The proposed method, which provides an approximate solution for automatic, in-plane rotation for doubly-oblique imaging, was demonstrated.

Original languageEnglish (US)
Pages (from-to)612-615
Number of pages4
JournalJournal of Magnetic Resonance Imaging
Volume18
Issue number5
DOIs
StatePublished - Nov 2003
Externally publishedYes

Keywords

  • Cardiac imaging
  • In-plane rotation
  • MRI
  • Oblique
  • SENSE

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

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