Title :
Elevation beam profile measurement : a simple test object for evaluation of arrays and 3D imaging performance
Author :
Richard, Bruno ; Robert, Bruno
Author_Institution :
Lab. de Biophys., Univ. Rene Descartes, Paris, France
Abstract :
Beam characteristics in the elevation plane of linear and curvilinear arrays are difficult to test. With a set of oblique reflecting planes crossing the scan plane at a 45° angle, the elevation beam profile is clearly displayed on the standard echographic image. Such a test object is useful to test 1D arrays with fixed geometrical focusing and 1.5D arrays with electronic focusing in the elevation direction. The influence of elevation focusing for 3D imaging is also demonstrated in order to optimize 3D data acquisition
Keywords :
biomedical transducers; biomedical ultrasonics; image reconstruction; image resolution; medical image processing; ultrasonic focusing; ultrasonic transducer arrays; 1.5D arrays; 1D arrays; 3D imaging performance; US transducer arrays; arrays evaluation; curvilinear arrays; echographic image; electronic focusing; elevation beam profile measurement; fixed geometrical focusing; linear arrays; oblique reflecting planes; optimized 3D data acquisition; test object; Data acquisition; Electronic equipment testing; Focusing; Image resolution; Imaging phantoms; Optical reflection; Rubber; Sheet materials; Ultrasonic imaging; Ultrasonic variables measurement;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.765313
