A comparison of prospective and retrospective respiratory navigator gating in 3D MR coronary angiography

Yiping P. Du, Elliot R. Mcveigh, David A. Bluemke, Harry A. Silber, Thomas K.F. Foo

Research output: Contribution to journalArticlepeer-review

Abstract

A comparison between the prospective and retrospective respiratory navigator gating in MR coronary angiography was performed with eight normal subjects. A three-dimensional (3D) ECG-gated fast gradient echo pulse sequence was used for image data acquisition. The results show that the MR coronary angiography obtained using retrospective gating retains a considerable amount of motion artifacts. In this study, the images acquired using prospective navigator gating demonstrated significantly reduced motion artifacts (p = 0.009), improved vessel visibility (p = 0.021) with reduced imaging time (p = 0.013) compared to the images obtained using retrospective navigator gating.

Original languageEnglish (US)
Pages (from-to)287-294
Number of pages8
JournalInternational Journal of Cardiovascular Imaging
Volume17
Issue number4
DOIs
StatePublished - 2001

Keywords

  • Coronary imaging
  • MR imaging
  • MR navigator echoes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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