Abstract #2106

Detection and Morphology of Breast Lesions with Very Early Phase of Ultrafast Dynamic Contrast Enhanced MRI using Compressed Sensing Reconstruction

MASAKO KATAOKA¹, Natsuko Onishi², Shotaro Kanao², Hajime Sagawa³, Mami Iima¹, Makiko Kawai², Akane Ohashi², Rena Sakaguchi², Ayami Ohno Kishimoto², Marcel Dominik Nickel⁴, Masakazu Toi⁵, and Kaori Togashi²

¹Diagnostic Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan, ²Kyoto University Graduate School of Medicine, Kyoto, Japan, ³Division of Clinical Radiology Service, Kyoto University Hospital, Kyoto, Japan, ⁴MR Application Predevelopment, Siemens Healthcare GmbH, Erlangen, Germany, ⁵Breast Surgery, Kyoto University, Kyoto, Japan

Using ultrafast DCE MRI (UF-DCE)with compressed sensing reconstruction, detection rate and morphology of breast lesions on very early phase images within 1 minutes post contrast injection were compared to those on full diagnostic protocol (FDP). Almost all (95%) of the lesions reported on FDP were identified on UF-DCE. Size of the lesions were slightly smaller on UF-DCE but within-2mm difference in 96% of masses. Considering that wash-in kinetic information can be obtained by UF-DCE, the current data of equivalent lesion detection, size and morphology evaluation on UF-DCE support its application to abbreviated breast MRI protocol.

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