Dynamic Contrast-Enhanced MRI of the Breast at 7T and 3T; Initial Results of an Intra-Individual Comparison of BI-RADS-MRI Lesion Assessment.

Bertine L. Stehouwer¹, Dennis W.J. Klomp¹, Peter R. Luijten¹, Willem P.Th.M. Mali¹, Maurice A.A.J. van den Bosch¹, Wouter B. Veldhuis¹

The purpose was to intra-individually compare BI-RADS-MRI assessment on 7T and 3T dynamic contrast-enhanced Breast MRI. Six patients with breast cancer were imaged on both field strengths. Two radiologists scored all exams. Image quality was scored to be at least sufficient for both field strengths. An inter-observer variability in the application of BI-RADS descriptors was observed. However, this did however not affect final assessment category, which was scored as at least suspicious in all cases.