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Abstract #4613

The Optimal Timepoint for Lesion depiction in Ultrafast DCE MRI: Correlation with lesion size and Invasive Breast Cancer Subtype

Masako Y Kataoka1, Rena Sakaguchi2, Maya Honda3, Mami Y Iima1, Masahiro Y Takada4, Kumiko Ando2, and Yuji Y Nakamoto5
1Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine Kyoto University, Kyoto, Japan, 2Department of Diagnostic Radiology, Kobe City Medical Center General Hospital, Kobe, Japan, 3Department of Diagnostic Radiology, Kansai Electric Power Hospital, Osaka, Japan, 4Breast Surgery, Graduate School of Medicine Kyoto University, Kyoto, Japan, 5Graduate School of Medicine Kyoto University, Kyoto, Japan

Synopsis

Keywords: Breast, Breast, ultrafast DCE MRI

Motivation: To know the factors affecting optimal timing of lesion evaluation in ultrafast (UF)- DCE MRI other than BPE.

Goal(s): To investigated the optimal timing for lesion depiction on UF-DCE MRI in relation to lesion size and invasive breast cancer subtype.

Approach: Optimal timing of lesion evaluation over 400 lesions were assessed by experienced readers. Its association with lesion size and subtype were examined.

Results: Optimal timing of breast lesion evaluation on UF-DCE MRI can be earlier for those with larger lesion, and not affected by subtype in case of invasive carcinoma.

Impact: UF-DCE MRI normally involves hundreds of images with multiple timing. Predicting optimal timing before scanning may help in efficient reading, efficient post-processing/reconstruction, and protocol improvement. The current results indicate the impact of lesion size, not subtype on optimal timing.

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Keywords