Coarse-fine ultrasound transducer array for medical imaging

Details Coarse-fine ultrasound transducer array for medical imaging Coarse-fine ultrasound transducer array for medical imaging

1995-06-30

1996-11-19

Manuel, George

Surgery

Truss

Pad

A61B 800

Patent

active

055752900

ABSTRACT:
The ultrasound transducer array defines an average row spacing along the elevation for receiving transducer elements that differs from an average row spacing along the elevation for transmitting transducer elements. In one embodiment a relatively "coarse" row spacing is used for reception and a relatively "fine" row spacing is used for transmission. The differing spacings lead to different transmit-elevation and receive-elevation beam-patterns. In one configuration the number of transducer elements, and correspondingly the number of ultrasound processing channels, is reduced. In an alternative configuration the beam-pattern "footprint" is increased without increasing the number of transducer elements or processing channels. The array includes dedicated transmit-only elements and/or dedicated receive-only elements, together with coincident, time-shared transmit/receive elements. The coarse-fine spacings enable improved elevational focus without substantially increasing side lobe levels in a focal plane and far field portion of a resulting beam-pattern.

REFERENCES:
patent: 4180790 (1979-12-01), Thomas
patent: 4180792 (1979-12-01), Lederman et al.
patent: 5278757 (1994-01-01), Hoctor et al.
patent: 5349262 (1994-09-01), Grenon et al.
patent: 5431167 (1995-07-01), Savord
Turnbull et al.; "Beam Steering with Pulsed Two-Dimensional Transducer Arrays;" IEEE Trans. Ultrasonics, Ferroelectrics and Frequency Control; vol. 38, No. 4 Jul. 1991.
Defranould et al.; "Design of a Two Dimensional Array for B and C Ultrasonic Imaging System;" 1977 Ultrasonics Symposium Proceedings, IEEE Cat. 77CH1264-1SU.
Lockwood et al.; "Optimizing Sparse Two-Dimensional Transducer Arrays Using an Effective Aperture Approach;" Date Unknown.

Affiliated with

Also associated with

Rating

Coarse-fine ultrasound transducer array for medical imaging does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coarse-fine ultrasound transducer array for medical imaging, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coarse-fine ultrasound transducer array for medical imaging will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-534017