Spectral Analysis of Ultrasound Radiofrequency Signals for the Identification of Intercostal Nerves

Ultrasound has long been used to assess and image soft-tissue structures in vivo. However, it has also been used to assess mechanical properties of tissue via elasticity imaging techniques and algorithms. Acoustic Radiation Force Impulse (ARFI) imaging can be used to both mechanically excite the tissue and observe the response of the tissue. Images can be created to highlight the mechanical properties of different tissues, thus providing contrast between structures difficult to discern via traditional b-mode imaging. More specifically, the project is investigating the feasibility of imaging intercostal nerves during image-guided procedures performed by anesthesiologists. It is a collaboration with the Departments of Biomedical Engineering and General Anesthesiology at the Cleveland Clinic Foundation.