Evaluation of motion effects on parallel MR imaging with precalibration

Jun Yu Guo, Eugene G. Kholmovski, Ling Zhang, Dennis L. Parker

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Several parallel imaging techniques such as SMASH, SENSE, k-space inherited parallel acquisition (KIPA) and others use reference (calibration) scans to find the parameters required for image reconstruction. Reference data is used to estimate coil sensitivity profiles for image domain techniques such as SENSE or reconstruction coefficients for k-space domain methods such as SMASH and KIPA. Any motion between the reference and accelerated imaging scans can make the reconstruction coefficients determined from the reference scan data suboptimal, resulting in an artifactual reconstruction. This work aims at comparing the effects of motion on the performance of three parallel imaging methods: SENSE, variable-density SENSE and KIPA, which all require one or more reference scans for calibration.

Original languageEnglish (US)
Pages (from-to)1130-1137
Number of pages8
JournalMagnetic Resonance Imaging
Volume25
Issue number8
DOIs
StatePublished - Oct 2007
Externally publishedYes

Keywords

  • KIPA
  • Motion artifact
  • Parallel imaging
  • SENSE
  • Variable-density SENSE

ASJC Scopus subject areas

  • Biophysics
  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging

Fingerprint

Dive into the research topics of 'Evaluation of motion effects on parallel MR imaging with precalibration'. Together they form a unique fingerprint.

Cite this