system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Ultrasonography transducer contains -
assistant
The correct answer is  Lead Zirconate titanate is the most widely used piezoelectric material in the ultrasound transducers. Barium titanate was the first discovered piezoeletric material.