Abstract #3374

Contrast-Enhanced MRI of the Breast at 7 and 3 T in the Same Patients: Inital Experience

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.