High frequency transducers, up to 35-50 MHz, are widely used in ophthalmic echography to image fine eye structures. At such a high frequency, mechanical scanning probes are the only practical choice. A good probe positioning-image evaluation feedback requires an image refresh-rate of 15-30 frames per second. We present the probe design and construction, the experimental characterization and a first high frequency echographic image obtained with a prototype probe based on an ultrasound motor. The prototype probe reaches a scanning rate of 15 frames per second, with very silent operation and little weight.
Carotenuto, R., Caliano, G., Caronti, A., Savoia, A.S., Pappalardo, M. (2004). Very fast scanning probe for ophthalmic echography using an ultrasound motor. In Ultrasonics Symposium, 2004 IEEE (pp.1310-1313) [10.1109/ULTSYM.2004.1418032].
Very fast scanning probe for ophthalmic echography using an ultrasound motor
CALIANO, Giosue';SAVOIA, ALESSANDRO STUART;
2004-01-01
Abstract
High frequency transducers, up to 35-50 MHz, are widely used in ophthalmic echography to image fine eye structures. At such a high frequency, mechanical scanning probes are the only practical choice. A good probe positioning-image evaluation feedback requires an image refresh-rate of 15-30 frames per second. We present the probe design and construction, the experimental characterization and a first high frequency echographic image obtained with a prototype probe based on an ultrasound motor. The prototype probe reaches a scanning rate of 15 frames per second, with very silent operation and little weight.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
