Orientational dependence of intermolecular double quantum coherence (iDQC) signal from tendon tissue

Bahadir Ozus, Geoffrey D. Clarke, Stephen J. Dodd, Gary D. Fullerton

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

The proton signal changes as the long axis of tendon tissue is rotated with respect to the main magnetic field (Bo). The orientational changes in the tendon signal obtained using the correlation spectroscopy revamped by asymmetric z-gradient echo detection (CRAZED) sequence, which allows the effects of intermolecular dipolar interactions to be observed, were investigated and compared with the orientational changes of the signals produced using correlation spectroscopy (COSY), spin-echo (SE), and one-pulse sequences. The intermolecular double quantum coherence (iDQC) signal obtained using the CRAZED sequence showed a variation in the signal from tendon tissue, with sharper peaks and greater relative differences between minimum and maximum signal values compared to the variations in the signal obtained from the COSY, SE, and one-pulse sequences. This result is attributed to the orientational dependence of the transverse relaxation rate of single (SQC) and double (DQH) quantum coherences R2 and R2,2, respectively.

Original languageEnglish (US)
Pages (from-to)1183-1186
Number of pages4
JournalMagnetic Resonance in Medicine
Volume53
Issue number5
DOIs
StatePublished - May 1 2005

Keywords

  • CRAZED
  • Magic angle
  • Orientation
  • Tendon
  • iDQC

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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