The overall goal of this project is to develop and validate a novel technique for Magnetic Resonance Imaging (MRI)-based Quantitative Susceptibility Mapping (QSM) of the abdomen, for non-invasive assessment of liver iron deposition. In this work, study team will develop and optimize advanced data acquisition and image reconstruction methods to enable QSM of the abdomen. Further, investigators will determine the accuracy, repeatability, and reproducibility of abdominal QSM for iron quantification in patients with liver iron overload. Excessive accumulation of iron in various organs, including the liver, which affects both adult and pediatric populations, is toxic and requires treatment aimed at reducing body iron stores. Accurate assessment of liver iron concentration is critical for the detection and staging of iron overload as well as for longitudinal monitoring during treatment. In summary, this project will develop a novel MRI-based QSM technique designed for the abdomen and will validate it in pediatric and adult patients with liver iron overload. Upon successful validation, QSM will provide accurate, repeatable, and reproducible quantification of LIC based on a fundamental property of tissue.
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Establishing the accuracy of MRI-QSM of the liver using SQUID-BLS as a reference
Timeframe: 1.5 hours
Establishing the repeatability of MRI-QSM of the liver
Timeframe: up to 1.5 hours
Establishing the reproducibility of MRI-QSM of the liver
Timeframe: up to 1.5 hours
Optimizing MRI-based QSM performance by using multiple QSM reconstruction and measurement
Timeframe: up to 1.5 hours
MRI-QSM data acquisition with Breath held
Timeframe: 1.5 hours
MRI-QSM data acquisition with Free Breathing
Timeframe: 1.5 hours