Abstract #1866

Morphology of Breast lesions on Ultrafast Dynamic Contrast Enhanced MRI using Compressed Sensing Reconstruction

MASAKO KATAOKA¹, Maya Honda², Natsuko Onishi², Mami Iima², Akane Ohashi², Ayami Ohno Kishimoto², Rie Ota², Marcel Dominik Nickel ³, Masakazu Toi⁴, and Kaori Togashi⁵

¹Diagnostic Imaging and Nuclear Medicine, Kyoto University, Kyoto, Japan, ²Kyoto University Graduate School of Medicine, Kyoto, Japan, ³MR Application Predevelopment, Siemens Healthcare GmbH, Erlangen, Germany, ⁴Breast Surgery, Kyoto University, Kyoto, Japan, ⁵Diagnosti c Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan

Using ultrafast DCE (UF-DCE) MRI with compressed sensing reconstruction, size and morphology of breast lesions on very early phase images within 1 minutes post contrast injection were compared to those on conventional DCE (C-DCE) MRI. The size of the lesions was slightly smaller on UF-DCE but within-2mm difference in approximately 80 % of the lesions. Morphological evaluations were the same in approximately 80% of the lesions yet irregular margin and clustered ring on C-DCE MRI may not be reflected to the appearance on UF-DCE, which should be noted in interpreting lesions using UF-DCE.

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