Field-Cycling imaging identifies breast cancer at low magnetic field strengths
Vasiliki Mallikourti1, James Ross1, Oliver Maier2, Gareth Davies1, Gerald Lip3, Markus Bödenler4, Rudolf Stollberger5, Yazan Masannat3, and Lionel Broche1
1Aberdeen Biomedical Imaging Centre, University of Aberdeen, Aberdeen, United Kingdom, 2Institute of Medical Engineering, Graz University of Technology, Graz, Austria, 3Breast unit, Aberdeen Royal Infirmary, Aberdeen, United Kingdom, 4Institute of eHealth, University of Applied Sciences FH JOANNEUM, Graz, Austria, 5BioTechMed-Graz, Graz, Austria
Field-Cycling imaging (FCI) can image over a range of low magnetic field strengths (0.2 T to 0.2 mT) through rapid switching between magnetic field levels. This allows measuring the field-depended changes of the longitudinal T1 relaxation time, known as T1 dispersion, exploring new approaches for breast tumour contrast. FCI images were acquired from patients with breast tumours to generate multi field-T1 maps and T1 dispersions. The T1 maps exhibited visible contrast of the tumour region. T1 dispersion profiles from tumours differed from those in healthy breast tissues, showing that FCI can detect breast tumours at low field strengths.
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