Abstract #1441

Can we use Ultrafast Dynamic Contrast Enhanced MRI to evaluate Ductal Carcinoma in situ?

Masako Y Kataoka¹, Maya Honda¹, Mami Iima¹, Akane Ohashi², Rie Ota¹, Yosuke Yamada³, Masakazu Toi⁴, and Yuji Nakamoto¹

¹Diagnostic Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan, ²Kyoto Medical Center, Kyoto, Japan, ³Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan, ⁴Department of Breast Surgery, Kyoto University Hospital, Kyoto, Japan

Using ultrafast DCE (UF-DCE) MRI, size and morphology of DCIS on very early phase of the post contrast injection were compared to those on early phase of conventional DCE (C-DCE) MRI and on High resolution post contrast enhancement (HR-CE). Lesion size tended to be smaller on UF-DCE MRI. Clustered ring is not frequently observed on UF-DCE MRI compared to HR-CE. These data suggest evaluating DCIS on UF-DCE may be dealt with caution.

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