Abstract #5232

What should I use to fill my Ultra-high Field MRI phantom?

Felix Horger^1,2,3, Jyoti Mangal^1,2,3, Raphael Tomi-Tricot^1,2,3,4, David Carmichael^1,2,3, Joseph Hajnal^1,2,3, and Shaihan Malik^1,2,3

¹Biomedical Engineering Department, School of Biomedical Engineering & Imaging Sciences, King's College London, London, United Kingdom, ²Centre for the Developing Brain, School of Biomedical Engineering & Imaging Sciences, King's College London, London, United Kingdom, ³London Collaborative Ultra high field System (LoCUS), London, United Kingdom, ⁴MR Research Collaborations, Siemens Healthcare Limited, Frimley, United Kingdom

Synopsis

Keywords: High-Field MRI, PhantomsWe explored commonly used substances for phantoms, air, water, oil and Perfluoropolyether, for their suitability for imaging at ultra-high field (7T). We illustrate the impact of susceptibility matching and how to prevent transmit field doming by selecting a substance with low dielectric constant. This work provides insights into the variety and expected magnitude of effects and can serve as guidance when designing a phantom for a specific application.

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