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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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