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Abstract #0782

Quantification of renal oxygenation with field-insensitive T2-preparation and fast acquisition

Zixuan Lin1, Dengrong Jiang2, Yi Zhang1, Yi-Cheng Hsu3, Hanzhang Lu2, and Dan Wu1
1Department of Biomedical Engineering, Zhejiang University, Hangzhou, China, 2Department of Radiology, Johns Hopkins University, Baltimore, MD, United States, 3MR Collaboration, Siemens Healthineers Ltd., Shanghai, China

Synopsis

Keywords: Kidney, Kidney

Motivation: T2-based method was recently extended to measure renal oxygen metabolism. However, MLEV T2-preparation can be less robust due to field inhomogeneity in abdomen.

Goal(s): The goal is to propose a field-insensitive method for renal oxygenation quantification.

Approach: An adiabetic T2-preparation (BIR-n) method was proposed. Simulation and phantom studies was performed to demonstrate the field-insensitivity. In-vivo experiements were conducted to examine the test-retest reproducibility.

Results: A robust T2 quantification at different B0 and B1 offsets were demonstrated. In-vivo experiments showed a good test-retest reproducibility. Oxygenation was also found to be consistent between left and right renal veins, and showed significant correlation with blood flow.

Impact: The proposed method has the potential to provide accurate and stable estimation of renal oxygen extraction and metabolism in a number of renal diseases.

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Keywords