Abstract #0677
Relaxation-weighted sodium MRI of breast lesions at 7T
Stefan Zbyn 1 , Olgica Zaric 1 , Vladimir Juras 1 , Katja Pinker 2 , Alex Farr 3 , Nadia Benkhedah 4 , Pascal Balzer 2 , Vladimir Mlynarik 1 , Armin Nagel 4 , Christian Singer 3 , Thomas Helbich 2 , Wolfgang Bogner 1 , and Siegfried Trattnig 1
1
High Field MR Center, Department of
Biomedical Imaging and Image-guided Therapy, Medical
University of Vienna, Vienna, Austria,
2
Division
of Molecular and Gender Imaging, Department of
Biomedical Imaging and Image-guided Therapy, Medical
University of Vienna, Vienna, Austria,
3
Department
of Gynecology and Obstetrics, Medical University of
Vienna, Vienna, Austria,
4
Department
of Medical Physics in Radiology, German Cancer Research
Center (DKFZ), Heidelberg, Germany
The aim of this study was to compare total sodium signal
with relaxation-weighted sodium signal in breast lesions
at 7T. While conventional sodium density images showed a
signal proportional to the local sodium concentration,
sodium ions with a longer T2*, such as in a cyst or
edema, were well suppressed in relaxation-weighted
images. Our data demonstrated improved differentiation
between edema, benign lesion and breast cancer with
relaxation-weighted sodium images than with conventional
sodium density images. Combined information from
conventional and from relaxation-weighted sodium images
may improve noninvasive evaluation of breast lesions.
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