A dual-curvature focused ultrasound phased-array transducer with a symmetric control has been developed for noninvasive ablative treatment of tumors. The 1.5-D array was constructed in-house and the electro-acoustic conversion efficiency was measured to be approximately 65%. In vitro experiments demonstrated that the array uses 256 independent elements to achieve 2-D wide-range high-intensity electronic focusing.
Date:
2012-01
Relation:
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 2012 Jan;59(1):150-155.
