Abstract #4629

Quantitative Susceptibility Mapping of Intracranial Hemorrhage: Time Evolution and Comparison to CT

Hongfu Sun^1,2, Derek J. Emery³, Kenneth Butcher⁴, and Alan H. Wilman²

¹Radiology, University of Calgary, Calgary, AB, Canada, ²Biomedical Engineering, University of Alberta, Edmonton, AB, Canada, ³Radiology and Diagnostic Imaging, University of Alberta, Edmonton, AB, Canada, ⁴Division of Neurology, Department of Medicine, University of Alberta, Edmonton, AB, Canada

To follow the time evolution of intracranial hemorrhage (ICH) using quantitative susceptibility mapping (QSM) and compare to CT. Twenty ICH patients were followed using a clinical MRI protocol typically performed on day 2, 7 and 30. The ICH areas and mean values were compared between the CT and QSM on 18 patients (average 1.7 days apart). Time evolution of ICH was also investigated by QSM. In conclusion, QSM can be used to measure the size of ICH and track susceptibility evolution of the blood degradation products, providing a means to track iron evolution.

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