GRASE imaging at 3 Tesla with template interactive phase-encoding

Jorge Jovicich, David G. Norris

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A new method for ordering the phase-encoding gradient is proposed, and an application for short effective TE gradient- and spin-echo (GRASE) imaging is demonstrated. The proposed method calculates the phase-encoding order from the signal decay of a template scan (hence 'template interactive phase- encoding' or TIPE). Computer simulations are used to compare the point spread functions of different phase-encoding orders giving short effective echo times (kb centric GRASE, centric GRASE, centric TIPE). The conventional centric phase-encoding order is also considered for GRASE. The conventional centric method is sensitive to both amplitude and phase modulation of the signal in k-space. The centric TIPE method gives the least amplitude modulation artifacts but is vulnerable to phase artifacts. The TIPE experiment was implemented on a 3 Tesla system. To the best of our knowledge, we present the first in vivo GRASE images at this field strength.

Original languageEnglish
Pages (from-to)970-979
Number of pages10
JournalMagnetic Resonance in Medicine
Volume39
Issue number6
DOIs
Publication statusPublished - Jun 1998

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Magnetic Resonance Imaging
Artifacts
Computer Simulation

Keywords

  • GRASE
  • High-field imaging
  • Image artifacts
  • Rapid imaging

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

GRASE imaging at 3 Tesla with template interactive phase-encoding. / Jovicich, Jorge; Norris, David G.

In: Magnetic Resonance in Medicine, Vol. 39, No. 6, 06.1998, p. 970-979.

Research output: Contribution to journalArticle

Jovicich, Jorge ; Norris, David G. / GRASE imaging at 3 Tesla with template interactive phase-encoding. In: Magnetic Resonance in Medicine. 1998 ; Vol. 39, No. 6. pp. 970-979.
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