Second-generation Dual Scan Mammoscope (DSM-2).

We developed the second-generation photoacoustic dual scan mammoscope (DSM) as a safe and effective modality for the breast imaging of patients with high breast density. Besides being a portable system with high resolution, DSM-2 has several improvements compared to the previous version: a larger field of view, better system stability, higher ultrasound imaging quality, and additional quasi-static elastography capability. The performance of the new system was demonstrated through clinical studies. The experiment result confirmed the capability of the second-generation DSM system as a powerful tool for breast imaging.