Abstract #4918

Correlation of dedicated breast PET and dynamic contrast MRI: Appearance of breast background parenchyma and breast cancers

Kanae K. Miyake^1,2,3, Debra M. Ikeda², Andrei H. Iagaru², Andrew Quon², Bruce L. Daniel², Jafi A. Lipson², Sunita Pal², Erik Mittra², Haiwei Henry Guo², Yuji Nakamoto³, Shotaro Kanao³, Masako Kataoka³, and Kaori Togashi³

¹Radiology, Rakuwakai Otowa Hospital, Kyoto, Japan, ²Radiology, Stanford University School of Medicine, Stanford, CA, United States, ³Diagnostic Imaging and Nuclear Medicine, Kyoto University Hospital, Kyoto, Japan

A recently developed ring-shaped PET scanner dedicated for breast (dbPET) provides high-resolution 3D images of a breast. We investigated the correlation between dbPET with ¹⁸F-fluorodeoxyglucose and dynamic contrast MRI (DCE-MRI) findings in respect to breast background parenchyma and mass-forming breast cancers. Background parenchymal uptake on dbPET was not associated with background parenchymal enhancement on DCE-MRI. Tumor appearance on dbPET was similar to that on DCE-MRI in majority of cases, suggesting improved spatial resolution of dbPET as well as its feasibility for the use of the combined image analysis with DCE-MRI aiming at functional and structural assessment of primary breast tumors.

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