Design for Ultrasonic Imaging

Cannata, J. M., Ritter, T. A., Chen, W.-H., et al. (2003) Design of efficient, broadband singleelement (20-80 MHz) ultrasonic Transducers for medical imaging applications, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 50, 1548-57. 

Caliano G, Carotenuto R, Cianci E, Foglietti V, Caronti A, lula A, Pappalardo M (2005) Design, fabrication and characterization of a capacitive micromachined ultrasonic probe for medical imaging. IEEE Trans 52(12) 2259-2269... 

Foster F, Zhang Y, Zhou YQ et al. (2002) A new ultrasound instrument for in vivo imaging of mice. Ultrasound Med Biol 28 1165-1172. Cannata J, Ritter T, Chen W, et al. (2003) Design of efficient broadband single element (20-80 MHz) ultrasonic transducers for medical imaging. IEEE Trans Ultras Ferroelect Freq Cont 50 1548-1557. 

The design, fabrication and characterization of novel micromachined focused ultrasonic transducers for minimally invasive medical imaging procedures have been demonstrated. Transducers were fabricated using a membrane deflection technique to produce spherical sections in a piezoelectric polymer film. Pulse echo responses showed minimal ringing and wide bandwidths characteristics of 80-110 %. Axial resolution of 50 pm and lateral resolution of 51-92 pm were achieved. A preamplifier circuit incorporated into a hybrid package with the ultrasonic transducer exhibited thermal nmse of 5.3 nV/Hz. The transducers were used to image human cadaveric aorta to reveal high-resolution subsurface structures. 

Lockwood, G. R., Hunt, J. W. and Foster, F. S. (1991) The Design of Protection Ciicuitiy for High-Frequency Ultrasound Imaging Systems, IEEE Transactions On Ultrasonics, Ferroelectrics and Frequency Control, 38, 48-55. 

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