Mariana Gueorguieva1, Desmond Teck Beng Yeo2, Roos Eisma3, Andreas Melzer1
1Institute for Medical Sciences and Technology, University of Dundee, Dundee, Scotland, United Kingdom; 2MR lab, Diagnostic & Biomedical Technologies, GE Global Research, Niskayuna, NY, United States; 3Centre for Anatomy and Human Identification, College of Life Sciences, University of Dundee, Dundee, Scotland, United Kingdom
The motivation for the present work is the observed loss of signal and contrast when Thiel-embalmed human cadavers are imaged using clinical MR sequences. Here, we present the results from B1+ magnitude mapping of embalmed cadavers. EM simulations of the B1+ distribution in a visible male model were performed using a range of tissue electrical conductivity values. Our results show that RF penetration issues begin to develop for values of electrical conductivity as low as 2.6 S/m. We conclude that diminished RF penetration due to the high conductivity of the embalming fluids is the primary mechanism that affects MR imaging.
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