Katja Pinker-Domenig1,
Pascal Baltzer1, Wolfgang Bogner2, Stephan Gruber2,
Lenka Minarikova2, Olgica Zaric2, Doris Leithner1,
Siegfried Trattnig2, Thomas Helbich3
1Dept.
of Radiology, Division of Molecular and Gender Imaging, Medical University
Vienna, Vienna, Austria; 2Dept. of Radiology, MR Centre of
Excellence, Medical University Vienna, Vienna, Austria; 3Dept. of
Radiology, Division of Molecular and Gender Imaging, Medical University of
Vienna, Vienna, Austria
To compare contrastenhanced high resolution MRI of the breast at 3 and 7Tesla. Two readers independently assessed image quality, lesions conspicuity and lesion morphology and enhancement-kinetics of 25 malignant lesions and 12 benign lesions in 20 patients. 3T MRI had a sensitivity 96.2% and a specificity of 91.7%. 7T had a sensitivity of 100% and a specificity of 84.6% (reader1) and 91.7% (reader2). 7T MRI of the breast is clinically applicable with an excellent diagnostic accuracy and inter-reader agreement. Overall image quality was equal to 3T but a higher spatial resolution was achieved at 7T.