Abstract #3284
Assessment of Hernia Mesh Shrinkage using Fourier Analysis of Susceptibility Gradients
Alexander Ciritsis 1 , Christoph Wilkmann 1 , Daniel Truhn 1 , Christiane K. Kuhl 1 , and Nils A. Krmer 1
1
Department of Diagnostic and Interventional
Radiology, RWTH University Hospital Aachen, Aachen, NRW,
Germany
The purpose of this study was to evaluate a method
analysing the mesh related susceptibility gradients to
assess mesh shrinkage. Three iron oxide-loaded
MR-visible mesh implants in different configurations
(shrunk from 14 to 48 % )were placed in an agarose
phantom. MRI was performed at a 1.5 T scanner using a
GRE sequences and SG- maps were calculated. A Fourier
analysis was performed on ten small rectangular areas,
resulting in one frequency spectrum indicating the
alternating susceptibility induced magnetic field
gradients. We propose an approach to assess local
configuration changes in iron oxide- loaded mesh
implants without extensive 3D postprocessing.
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