Miniaturized Intracavitary Forward-Looking Ultrasound Transducer for Tissue Ablation.

Objective: This paper aims to develop a miniaturized forward-looking ultrasound transducer for intracavitary tissue ablation, which can be used through an endoscopic device. The internal ultrasound (US) delivery is capable of directly interacting with the target tumor, resolving adverse issues of currently available US devices, such as unintended tissue damage and insufficient delivery of acoustic power.

Methods: To transmit a high acoustic pressure from a small aperture (<3 mm), a double layer transducer (1.