[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.13104/imri.2018.22.1.71

Two-Dimensional Image-Based Respiratory Navigator for Free-Breathing Coronary Magnetic Resonance Angiography

Shin, Taehoon (Division of Mechanical and Biomedical Engineering, Ewha Womans University)

Publication Information

Investigative Magnetic Resonance Imaging / v.22, no.1, 2018 , pp. 71-77 More about this Journal

Abstract

Purpose: To develop a two-dimensional (2D) image-based respiratory motion correction technique for free-breathing coronary magnetic resonance angiography (MRA). Materials and Methods: The proposed respiratory navigator obtained aliased a 2D sagittal image from under-sampled k-space data and utilized motion correlation between the aliased images. The proposed navigator was incorporated into the conventional coronary MRA sequence including the diaphragm navigator and tested in three healthy subjects. Results: The delineation of major coronary arteries was significantly improved using the proposed 2D motion correction (S/I and A/P) compared to one-dimensional (S/I) correction using the conventional diaphragm navigator. Conclusion: The 2D image-based respiratory navigator was proposed for free-breathing coronary angiography and showed the potential for improving respiratory motion correction compared to the conventional 1D correction.

Keywords

Motion correction; Respiratory navigator; Coronary angiography;

Citations & Related Records

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