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Realization of 19F MRI oximetry method using perfluorodecalin

  • Mikhail V. GulyaevEmail author
  • Aleksandra V. Kuznetsova
  • Denis N. Silachev
  • Tatyana I. Danilina
  • Lev L. Gervits
  • Yury A. Pirogov
Research Article
  • 121 Downloads

Abstract

Objective

To identify the technical aspects of the potential use of clinically approved perfluorodecalin (PFD, C10F18) for 19F magnetic resonance imaging (MRI) oximetry method at high magnetic field 7.05 T.

Materials and methods

19F T1 measurements were made on a set of PFD samples with different oxygen contents (0%, 21%, and 100%) at room (21 °C) and body temperature (37 °C). In vivo MRI studies were carried out on one healthy rat and two rats with C6 brain glioma.

Results

The selective excitation of the magnetically equivalent 19F nuclei of CF2 groups of trans-isomer of PFD, which give a doublet at a frequency of about − 140 ppm (in relation the chemical shift of trifluoroacetic acid, which is − 76.55 ppm) should be done for correct implementation of 19F MRI oximetry method. The amount of PFD equal to 30 μl is the optimal for obtaining reliable data on the measured T1 values. In this case, the standard deviation of T1 does not exceed 5%. In vivo MRI studies showed that the values of the partial pressure of oxygen (pO2) decrease from normal values of about 38 mmHg (healthy brain) to almost 0 mmHg at the last stage of tumor growth.

Conclusion

The study showed the feasibility of the successful application of PFD for 19F MRI oximetry method.

Keywords

Perfluorodecalin 19F MRI oximetry method C6 rat brain glioma RARE-VTR 

Notes

Acknowledgements

This work was carried out at the Moscow State University on the equipment of the Collective Using Center “Biospectrotomography” and supported by Russian Foundation for Basic Research Grant no. 17-02-00465

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All procedures were conducted in accordance with the European Community Council directives 86/609/EEC and the study was approved by the local institutional animal ethics committee.

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Copyright information

© European Society for Magnetic Resonance in Medicine and Biology (ESMRMB) 2019

Authors and Affiliations

  • Mikhail V. Gulyaev
    • 1
    Email author
  • Aleksandra V. Kuznetsova
    • 1
  • Denis N. Silachev
    • 1
  • Tatyana I. Danilina
    • 1
  • Lev L. Gervits
    • 2
  • Yury A. Pirogov
    • 1
    • 3
  1. 1.M.V. Lomonosov Moscow State UniversityMoscowRussia
  2. 2.A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of SciencesMoscowRussia
  3. 3.National Research Nuclear University MEPhIMoscowRussia

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