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Abstract #4625

Lipid composition mapping of the breast in BRCA1/2 genetic mutation carriers using chemical shift-encoded imaging

Sai Man Cheung1, Kwok-Shing Chan2, Yazan Masannat3, Senthil Ragupathy4, Zosia Miedzybrodzka1, and Jiabao He1,5
1Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom, 2Massachusetts General Hospital, Boston, MA, United States, 3Breast Unit, Broomfield Hospital, Mid and South Essex NHS Trust, Chelmsford, United Kingdom, 4Radiology Department, Aberdeen Royal Infirmary, Aberdeen, United Kingdom, 5Newcastle Magnetic Resonance Centre, Newcastle University, Newcastle, United Kingdom

Synopsis

Keywords: Screening, Fat, BRCA1/2, chemical shift-encoded imaging, early detection

Motivation: Deregulation of lipid composition in the breast of BRCA1/2 carriers has been observed using single voxel spectral edited MRS, however the spatial distribution may further distinguish the disease state.

Goal(s): We aimed to determine the power and repeatability of CSEI in detection of lipid deregulation in BRCA1/2.

Approach: Lipid composition maps were acquired from 20 BRCA1/2 and 20 patients, to derive monounsaturated, polyunsaturated and saturated fatty acids in the peri-tumoural region in patients and the whole breast in all subjects.

Results: Lipid composition in BRCA1/2 showed similarity to positive control. CSEI has excellent repeatability in lipid composition mapping of the breast.

Impact: Deregulation of lipid composition in the breast of BRCA1/2 genetic mutation carriers resembles the diseased group, serving as potential precursor of breast cancer. CSEI yields highly repeatable quantitative maps of lipid composition critical for effective disease monitoring.

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Keywords