Ultrasonic computed tomography of the breast. Improvement of image quality by use of cross-correlation time-of-flight and phase-insensitive attenuation measurements.

Artigo Revisado por pares

Ultrasonic computed tomography of the breast. Improvement of image quality by use of cross-correlation time-of-flight and phase-insensitive attenuation measurements.

1984; Radiological Society of North America; Volume: 152; Issue: 1 Linguagem: Inglês

10.1148/radiology.152.1.6729107

ISSN

1527-1315

Autores

Thomas L. Chenevert, Donita Irene Bylski, Paul L. Carson, Charles R. Meyer, Peyton H. Bland, Dorit D. Adler, R.M. Schmitt,

Tópico(s)

Photoacoustic and Ultrasonic Imaging

Resumo

The authors present two methods of reducing refraction artifacts in ultrasonic computed tomography of the breast. Measuring the time of flight of sonic pulses by cross-correlation instead of leading-edge detection significantly reduces distortion and improves resolution in speed-of-sound images. Phase-insensitive reception of pulse energy across a large aperture array is shown to be superior to a conventional single-element transducer for attenuation imaging.

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Ultrasonic computed tomography of the breast. Improvement of image quality by use of cross-correlation time-of-flight and phase-insensitive attenuation measurements.