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Experimental Protocol for MRI Mapping of the Blood Oxygenation-Sensitive Parameters T2 and T2 in the Kidney - Chapter 23
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Experimental Protocol for MRI Mapping of the Blood Oxygenation-Sensitive Parameters T2 and T2 in the Kidney - Chapter 23

Andreas Pohlmann, Kaixuan Zhao, Sean B Fain, Pottumarthi V Prasad and Thoralf Niendorf
Preclinical MRI of the Kidney: Methods and Protocols
Methods in Molecular Biology , volume 2216, Springer US
2021
DOI: 10.1007/978-1-0716-0978-1_23
PMCID: PMC9703278
PMID: 33476013
url
https://doi.org/10.1007/978-1-0716-0978-1_23View
Published (Version of record) Open Access

Abstract

Renal hypoxia is generally accepted as a key pathophysiologic event in acute kidney injury of various origins, and has also been suggested to play a role in the development of chronic kidney disease. Here we describe a step-by-step experimental protocol for indirect monitoring of renal blood oxygenation in rodents via the deoxyhemoglobin sensitive MR parameters T2* and T2—a contrast mechanism known as the blood oxygenation level dependent (BOLD) effect. Since an absolute quantification of renal oxygenation from T2*/T2 remains challenging, the effects of controlled and standardized variations in the fraction of inspired oxygen are used for bench marking. This MRI method may be useful for investigating renal blood oxygenation of small rodents in vivo under various experimental (patho)physiological conditions.

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