Intermolecular double-quantum NMR techniques to probe microstructures on porous media

S. Capuani, R. T. Branca, M. Alesiani, B. Maraviglia

Research output: Contribution to journalArticlepeer-review


In heterogeneous systems the amplitude of the intermolecular double-quantum (DQ) signal depends on sample heterogeneity over a correlation distance dc = π/(γGct). In this paper two different CRAZED-type sequences were applied in a porous medium phantom. One of these sequences gives rise to a DQ-T2 weighted signal, while the other one gives rise to a DQ-T5* weighted signal. Experimental results indicate that tuning of the correlation distance dc in a porous medium can alter the DQ signal in a manner which depends on the microstructure. This is evident only using the CRAZED-type sequence which gives rise to a DQ-T2* weighted signal.

Original languageEnglish
Pages (from-to)413-414
Number of pages2
JournalMagnetic Resonance Imaging
Issue number3-4
Publication statusPublished - Apr 2003


  • Double-quantum spin-spin relaxation times
  • Double-quantum techniques
  • Pore size

ASJC Scopus subject areas

  • Biophysics
  • Clinical Biochemistry
  • Structural Biology
  • Radiology Nuclear Medicine and imaging
  • Condensed Matter Physics


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