Abstract: Systems and methods are described herein for producing a model of a biological tissue, comprising a primary elastic material formed in the shape of an organ, and a secondary stiffener material embedded in the primary elastic material, wherein the secondary stiffener material is formed into a metamaterial design that increases the elastic modulus of the model in at least one predetermined direction. Models in accordance with embodiments mimic both the shape and mechanical properties of the organ they depict.

Abstract: Systems and methods are described herein for producing a model of a biological tissue, comprising a primary elastic material formed in the shape of an organ, and a secondary stiffener material embedded in the primary elastic material, wherein the secondary stiffener material is formed into a metamaterial design that increases the elastic modulus of the model in at least one predetermined direction. Models in accordance with embodiments mimic both the shape and mechanical properties of the organ they depict.

Abstract: An effective method to attain high volume rates in real-time three-dimensional ultrasound imaging is to reduce the lateral scan extent in azimuth and/or elevation. Reducing the scan extent, however, may make it difficult to determine the anatomical orientation during scan, or post-scan review. Anatomical landmark information is provided, with only a small impact on the volume rate by scanning along a two-dimensional plane with a greater lateral extent than a three-dimensional volume scan or by scanning over a three-dimensional volume with a lower resolution than a higher resolution sub-volume scan. The lower resolution three-dimensional image or the two-dimensional image scan provides anatomical landmark information. The higher resolution or smaller three-dimensional volume scan provides information for diagnosis of a specific region with three-dimensional imaging.