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. 2019 Jun;5(2):274–281. doi: 10.18383/j.tom.2019.00008

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© 2019 The Authors. Published by Grapho Publications, LLC

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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Figure 3. — Impact of current flow through the carbon-fiber sheet heater element on MRI of a water gel phantom. PRESS pulse-acquire spectroscopy with the heater turned off and on (A). The image shows the placement of the 2-mm-cubic PRESS voxel that was located 3, 7, and 5 mm off-isocentre in the z, y, and x axes, respectively, such that it was positioned as close to one of the heater legs as possible; absolute value display of the spectrum showing the water resonance with the heater turned off (top trace) and the difference spectrum from acquisitions made with and without current flow through the heater (bottom trace) (B). The intensity of the difference spectrum is scaled 10× higher than the top trace and the absolute value display was used for clarity of display of the residual subtraction error. T1-weighted 2D FLASH MRI on a water gel phantom with the heater turned off (left column) and on (right column) (C).