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Abstract #3314

T2 mapping of ventricular cerebrospinal fluid (CSF) at 7 Tesla with comparison to 3T

Jolanda M Spijkerman1, Esben T Petersen2, Peter R Luijten1, Jeroen Hendrikse1, and Jaco J M Zwanenburg1

1Radiology, University Medical Center Utrecht, Utrecht, Netherlands, 2Centre for Functional and Diagnostic Imaging and Research, Danish Research Centre for Magnetic Resonance, Copenhagen University Hospital, Hvidovre, Denmark

The relaxation parameters of CSF may have potential as imaging markers in several diseases. In this work T2 mapping of CSF in the lateral ventricles and in the fourth ventricle was performed in six volunteers at 7T, with comparison to 3T. The sensitivity for B1 was assessed by comparing the T2s in both regions, with equal B1 at 3T and different B1 at 7T. T2 values were significantly lower at 7T compared to 3T. No significant difference was found between the lateral and the fourth ventricular T2s at 7T (and 3T), indicating negligible B1-sensitivity for the used T2-mapping sequences.

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