| 研究実績の概要 |
System design from signal induction to readout electronics was completed. Monte Carlo simulation of X-ray transport and interaction, as well as that for acoustic wave propagation are being performed to model sensitivity and spatial resolution needs on both the X-ray and acoustic sides for breast imaging purposes using GATE, k-Wave, MATLAB, and virtual breast phantoms. A noise-equivalent pressure (NEP) / signal-to-noise ratio (SNR) framework has been developed, showing potential for NEP to be <1 Pa dependent on area of transducer surface. The optimum configurations of the system, in terms of image SNR and contrast-to-noise ratio (CNR) have been investigated, with the goal being to differentiate between breast tissue subgroups of different molecular densities.
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