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Abstract #4629

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

Hongfu Sun1,2, 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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