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Abstract #4137

Optimization of QBOLD Methods for the Assessment of Mouse Renal Oxygenation

Feng Wang1, 2, David A. Hormuth, II1, 3, Keiko Takahashi4, John C. Gore1, 2, Raymond C. Harris4, Takamune Takahashi4, Christopher C. Quarles1, 2

1Institute of Imaging Science, Vanderbilt University, Nashville, TN, United States; 2Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN, United States; 3Biomedical Engineering, Vanderbilt University, Nashville, TN, United States; 4O'Brien Mouse Kidney Physiology and Disease Center, Vanderbilt University, Nashville, TN, United States


Renal function is highly dependent upon adequate perfusion and oxygenation and their non-invasive assessment in mice could provide useful tools with which to interrogate disease models. Recently, an experimentally practical quantitative BOLD approach (qBOLD) was proposed that enables the quantification of local blood oxygen saturation (LSO2) [1]. In this study, we evaluated the feasibility of this qBOLD protocol for application to mouse kidneys. Specifically, we optimized imaging sequences and protocols that enable mapping of T2, T2* (before and after the injection of a contrast agent), blood volume fraction (BVf) and Bo.