Examples of design curves for multirow arrays used with time-shift compensation.
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.
Lacefield
James C
JC
University of Rochester, NY 14627, USA.
Waag
Robert C
RC
D019047:Phantoms, Imaging; D012542:Scattering, Radiation; D014159:Transducers; D014463:Ultrasonography / Q000379:methods*