Final answer:
PZT is essential in ultrasound technology for imaging and therapeutic applications due to its piezoelectric properties, which allow transducers to emit and receive ultrasonic waves for diagnosis and treatment.
Step-by-step explanation:
Lead Zirconate Titanate (PZT) is widely utilized in the field of ultrasound technology for its piezoelectric properties which allow it to convert electrical energy into mechanical waves, and vice versa. In ultrasound imaging, PZT crystals in transducers serve as both transmitters and receivers of ultrasonic waves, enabling the capture of detailed images of internal body structures by sending out high-frequency sound waves and interpreting the reflected signals. Additionally, at higher intensities, ultrasound can be used therapeutically to generate local heating for physical therapy, or to destroy biological tissue, such as kidney stones or tumors, indicating the versatility of PZT in medical applications.