This chapter describes theories and technologies about ultrasound imaging. As a mechanical wave, ultrasound propagates in the imaging zone, and the echoes deliver information about the position and properties of non -uniformities inside the specimen. The most commonly used device for ultrasound transmission and reception is piezoelectric ultrasound transducers and their arrays. Vibration modes and design principles were discussed in detail. Other ultrasound transmission and/ or reception technology include CMUT and optical -based acoustic sensing. Multiple imaging modes are available in ultrasound imaging. Finally, typical ultrasound imaging modes are described, including A -mode, B -mode, M -mode, IUVS, Doppler imaging and harmonic imaging modes.
Ultrasound imaging sensors, Page 1 of 2
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