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Magnetic Resonance Materials in Physics, Biology and Medicine
Published in: Magnetic Resonance Materials in Physics, Biology and Medicine 3/2019

01-06-2019 | Glioma | Research Article

Realization of 19F MRI oximetry method using perfluorodecalin

Authors: Mikhail V. Gulyaev, Aleksandra V. Kuznetsova, Denis N. Silachev, Tatyana I. Danilina, Lev L. Gervits, Yury A. Pirogov

Published in: Magnetic Resonance Materials in Physics, Biology and Medicine | Issue 3/2019

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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.
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Metadata
Title
Realization of 19F MRI oximetry method using perfluorodecalin
Authors
Mikhail V. Gulyaev
Aleksandra V. Kuznetsova
Denis N. Silachev
Tatyana I. Danilina
Lev L. Gervits
Yury A. Pirogov
Publication date
01-06-2019
Publisher
Springer International Publishing
Published in
Magnetic Resonance Materials in Physics, Biology and Medicine / Issue 3/2019
Print ISSN: 0968-5243
Electronic ISSN: 1352-8661
DOI
https://doi.org/10.1007/s10334-019-00739-1

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