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Abstract #3986

Improved visualization of cartilage canals using semi-quantitative susceptibility mapping

Mikko Johannes Nissi 1,2 , Ferenc Toth 3 , Cathy S Carlson 3 , and Jutta M Ellermann 1

1 CMRR, Department of Radiology, University of Minnesota, Minneapolis, MN, United States, 2 Department of Orthopaedic Surgery, University of Minnesota, Minneapolis, MN, United States, 3 Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, United States

Recently, visualization of the cartilage canal vessels of epiphyseal growth cartilage in the developing skeleton was demonstrated using susceptibility weighted imaging (SWI). A visualization artifact (doubling of the vessels along B0 direction) due to the dipolar phase was also reported. At high enough resolution, the dipolar appearance of the phase accumulation around venous vessels can be detected, with the resulting artifact if simple phase mask, as in standard SWI post-processing is used. In the present study, simplified semi-quantitative susceptibility mapping (sQSM) approach was utilized to resolve the dipolar phase pattern to improve the visualization of cartilage canal vessels.

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