Flow artifact reduction in MRI: A review of the roles of gradient moment nulling and spatial presaturation

Richard Lorne Ehman, J. P. Felmlee

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

In the past, flow artifacts and inconsistent depiction of vascular anatomy have represented significant problems in clinical MRI. These difficulties are now generally well addressed by the techniques of gradient moment nulling and spatial presaturation. Gradient moment nulling (GMN) is an effective method for eliminating flow artifacts in gradient echo images, while presaturation is more applicable to the same task in spin echo acquisitions. The GMN technique also has useful applications in spin echo imaging such as combating the effects of tissue and CSF motion in long TE sequences. In contrast to presaturation, however, GMN is not suitable for suppressing artifacts due to pulsatile blood flow in spin echo images.

Original languageEnglish (US)
Pages (from-to)293-307
Number of pages15
JournalMagnetic Resonance in Medicine
Volume14
Issue number2
DOIs
StatePublished - 1990

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Artifacts
Pulsatile Flow
Blood Vessels
Anatomy
Magnetic Resonance Imaging

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Flow artifact reduction in MRI : A review of the roles of gradient moment nulling and spatial presaturation. / Ehman, Richard Lorne; Felmlee, J. P.

In: Magnetic Resonance in Medicine, Vol. 14, No. 2, 1990, p. 293-307.

Research output: Contribution to journalArticle

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