Breast-MRI at 3T and 7T in patients and healthy volunteers: Diagnostic accuracy, SNR and B1+-homogeneity.
Stephan Gruber 1 , Lenka Minarikova 1 , Katja Pinker-Domenig 2 , Olgica Zaric 1 , Marek Chmelik 1 , Thomas Helbich 2 , Pascal Baltzer 2 , Roland Boubela 1 , Wolfgang Bogner 1 , and Siegfried Trattnig 1
High Field MR Centre, Medical University of
Vienna, Vienna, Austria,
of Biomedical Imaging and Image-guided Therapy, Medical
University of Vienna, Vienna, Austria
Dynamic contrast-enhanced MRI is an important tool for
detection and characterization of breast lesions. With
the availability of high field systems for clinical
routine (3T) and research (7T) increased SNR and spatial
resolution may improve diagnostic accuracy for breast
MRI. To test the feasibility of breast MRI at 3T and 7T
specificity, sensitivity and SNR were calculated in 24
patients. In addition B1-maps were measured at 3T and 7T
in five healthy subjects.
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