Matsumura T, et al : Development of Freehand Ultrasound Elasticity Imaging System and in vivo Results. First International Conference on the Ultrasonic Measurement and Imaging of Tissue Elasticity, 1 : 80, 2002.
Matsumura T, et al : Development of Freehand Ultrasound Elasticity Imaging System and in vivo Results. J. Med. Ultrasonics, 30 : 470, 2003.