Keywords: Phantoms, Phantoms, Elastography, Stiffness
Motivation: Quantitative quality assurance (QA) methods for magnetic resonance elastography (MRE) are needed for clinical care but are currently unavailable.
Goal(s): Evaluate stiffness measurement variability from two phantoms of different stiffness using four types of passive drivers: two commercial drivers, a custom stand-style driver, and a novel driver integrated into the phantom housing.
Approach: Stiffness measurements were quantified in ten acquisitions in two phantoms of differing stiffness by four passive drivers. Measurement variability was compared by standard deviations and Whisker-and-Box plots.
Results: The integrated driver achieved the best performance with the highest repeatability, ie: lowest variability, compared to the other drivers.
Impact: An MRE phantom equipped with an integrated passive driver could improve repeatability in MRE quality assurance, potentially enhancing the reliability of QA processes in both clinical trials and patient care.
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