Isolating quantum coherences in structural imaging using intermolecular double-quantum coherence MRI.

Published

Journal Article

Intermolecular multiple-quantum coherence (iMQC) MR imaging provides a fundamentally different contrast mechanism. It allows probing tissue microstructure by tuning the direction and strength of the correlation gradient. However, iMQC images of a specific quantum-coherence can easily be contaminated by leakage signals from undesired quantum coherences (zero, single, and triple quantum coherence in this work). Using a modified double-quantum CRAZED imaging sequence, we show that signals originating from various coherence orders (M=0, 1, 2, 3) can be predicted in k-space and effectively isolated by means of a four-step phase cycling scheme and judicious choice of flip angles. Finally, preliminary data suggest the method to be able to provide information on trabecular bone architecture such as regional mean trabecular plate separation.

Full Text

Duke Authors

Cited Authors

  • Chin, C-L; Tang, X; Bouchard, L-S; Saha, PK; Warren, WS; Wehrli, FW

Published Date

  • December 2003

Published In

Volume / Issue

  • 165 / 2

Start / End Page

  • 309 - 314

PubMed ID

  • 14643714

Pubmed Central ID

  • 14643714

Electronic International Standard Serial Number (EISSN)

  • 1096-0856

International Standard Serial Number (ISSN)

  • 1090-7807

Digital Object Identifier (DOI)

  • 10.1016/j.jmr.2003.08.007

Language

  • eng