Examples of design curves for multirow arrays used with time-shift compensation

Author

Lacefield, James C. ; Waag, Robcrt C.

Author_Institution

Rochester Univ., NY, USA

Volume

49

Issue

9

fYear

2002

Firstpage

1340

Lastpage

1344

Abstract

The effect of 1.75-D array element height on time-shift compensation is analyzed using a two-dimensional array system and a distributed aberration phantom. The analysis uses hydrophone measurements of transmit beams. The results indicate that, for imaging at 3 MHz through aberration representative of the abdominal wall, similar focus compensation performance can be expected from arrays with element pitches less than or equal to 3.0 mm.

Keywords

aberrations; biomedical transducers; biomedical ultrasonics; compensation; ultrasonic focusing; ultrasonic transducer arrays; 1.75-D array element height; 3 MHz; 3.0 mm; abdominal wall; aberrator characteristics; design curves; distributed aberration phantom; element pitches; focus compensation performance; hydrophone measurements; imaging frequency; multirow arrays; time-shift compensation; transmit beams; transmit focus compensation; two-dimensional array system; ultrasonic pulse distortion; Abdomen; Degradation; Fluctuations; Focusing; Frequency; Imaging phantoms; Needles; Scattering; Sonar equipment; Ultrasonic imaging; Phantoms, Imaging; Scattering, Radiation; Transducers; Ultrasonography;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/TUFFC.2002.1041551

Filename

1041551