Investigators at Texas A&M University (College Station,TX,USA; www.tamu.edu) have developed a new technique that enables researchers to accurately determine both Young’s modulus(YM) and Poisson’s ratio(PR) without invasive procedures.

To accurately gauge tissue stiffness,scientists require both these distinct measurements.

YM serves as a mechanical parameter for tissue stiffness,while PR measures the compressibility of the tissue.

The study is not only the first to accurately measure both YM and PR,but the method is also among the first to treat tissue as a changing material.

Moving forward,the researchers aim to test the model’s applicability in the human body.