In vivo intravoxel incoherent motion measurements in the human placenta using echo-planar imaging at 0.5 T

R. J. Moore, B. Issa, P. Tokarczuk, K. R. Duncan, P. Boulby, P. N. Baker, R. W. Bowtell, B. S. Worthington, I. R. Johnson, P. A. Gowland

Research output: Contribution to journalArticlepeer-review

77 Citations (Scopus)

Abstract

This paper presents the first in vivo measurements of intravoxel incoherent motion in the human placenta, obtained using the pulsed gradient spin echo (PGSE) sequence. The aims of this study were two-fold. The first was to provide an initial estimate of the values of the IVIM parameters in this organ, which are currently unknown. The second aim was then to use these results to optimize the sequence timings for future studies. The moving blood fraction (f), diffusion coefficient (D), and pseudo-diffusion coefficient (D*) were measured. The average value of f was 26 ± 6 % (mean ± SD), D was 1.7 ± 0.5 x 10-3 mm2/sec, and D* was 57 ± 41 x 10-3 mm2/sec. For the optimized values of b, the expected percentage uncertainty in the fitted values of f, D, and D* for the placenta were σf/f = 14.9%, σD/D = 14.3%, σD*/D* = 44.9%, for an image signal-to-noise of 20:1, and a total imaging time of 800 sec. (C) 2000 Wiley-Liss, Inc.

Original languageEnglish
Pages (from-to)295-302
Number of pages8
JournalMagnetic Resonance in Medicine
Volume43
Issue number2
DOIs
Publication statusPublished - 2000

Keywords

  • EPI
  • Human placenta
  • IVIM
  • Optimization
  • PGSE

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Fingerprint

Dive into the research topics of 'In vivo intravoxel incoherent motion measurements in the human placenta using echo-planar imaging at 0.5 T'. Together they form a unique fingerprint.

Cite this