Biomicroscopia ultra-sônica aplicada à caracterização do esôfago / Ultrasound biomicroscopy applied to the characterization of the esophagus

This work has the objective to present images of the in vitro esophagus wall with a high frequency ultrasound (US) system. The ultrasound pulse echo system setup consists of a monocycle pulse generator exciting a PVDF transducer and a high frequency pre-amplifier...