Multi-row ultrasonic transducer array with uniform elevator beam

Details Multi-row ultrasonic transducer array with uniform elevator beam Multi-row ultrasonic transducer array with uniform elevator beam

1997-05-07

1999-03-16

Jaworski, Francis J.

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

310336, A61B 800

Patent

active

058823093

ABSTRACT:
A multi-row ultrasound transducer array having a central row of transducer elements and a pair of outermost rows of transducer elements on opposing sides of the central row. The corresponding elements of the outermost rows are connected in parallel to a respective signal lead. The area of each element in the central row is less than the combined area of each pair of elements of the outermost rows. The greater total area of the combined elements of the outermost rows as compared to the area of each element of the central row provides improved elevation performance (thinner and more uniform image slice, greater contrast resolution), especially in the very near field, as compared to conventional transducers. The array may further include one or more pairs of rows of elements intermediate the central row and the respective outermost rows. The corresponding elements of the intermediate rows are connected in parallel to respective signal leads. The combined area of each pair of elements of the intermediate rows is less than the combined area of each pair of elements of the outermost rows, but greater than the area of a central row element.

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