Title :
Performance of a 50 MHz annular array based imaging system
Author :
Brown, Jeremy A. ; Morton-Démoré, Christine ; Foster, F.S. ; Lockwood, Geoffrey R.
Abstract :
The performance of a high frequency annular array based imaging system is described. Radiation patterns generated by the array plus beamformer were evaluated by imaging a point target immersed in a water bath. The lateral image resolution at a depth of 5.5 mm was 96 microns and the secondary lobes were suppressed 60 dB below the main lobe. Preliminary images of CD-1 mice were also generated using the array system. The images were displayed with a dynamic range of up to 60 dB.
Keywords :
array signal processing; biomedical ultrasonics; image resolution; medical image processing; transducers; ultrasonic imaging; CD-1 mice; beamformer; high frequency annular array; imaging system; lateral image resolution; performance; point target; radiation patterns; secondary lobe suppression; water bath; Biomedical transducers; Electrodes; Frequency; High-resolution imaging; Image resolution; Phased arrays; Sampling methods; Ultrasonic imaging; Ultrasonic transducer arrays; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 2004 IEEE
Print_ISBN :
0-7803-8412-1
DOI :
10.1109/ULTSYM.2004.1417833
