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Proceedings Paper

Phantom image results of an optimized full 3D USCT
Author(s): Nicole V. Ruiter; Michael Zapf; Torsten Hopp; Robin Dapp; Hartmut Gemmeke
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Paper Abstract

A promising candidate for improved imaging of breast cancer is ultrasound computer tomography (USCT). Current experimental USCT systems are still focused in elevation dimension resulting in a large slice thickness, limited depth of field, loss of out-of-plane reflections, and a large number of movement steps to acquire a stack of images. 3DUSCT emitting and receiving spherical wave fronts overcomes these limitations. We built an optimized 3DUSCT with nearly isotropic 3DPSF, realizing for the first time the full benefits of a 3Dsystem. In this paper results of the 3D point spread function measured with a dedicated phantom and images acquired with a clinical breast phantom are presented. The point spread function could be shown to be nearly isotropic in 3D, to have very low spatial variability and fit the predicted values. The contrast of the phantom images is very satisfactory in spite of imaging with a sparse aperture. The resolution and imaged details of the reflectivity reconstruction are comparable to a 3TeslaMRI volume of the breast phantom. Image quality and resolution is isotropic in all three dimensions, confirming the successful optimization experimentally.

Paper Details

Date Published: 24 February 2012
PDF: 6 pages
Proc. SPIE 8320, Medical Imaging 2012: Ultrasonic Imaging, Tomography, and Therapy, 832005 (24 February 2012); doi: 10.1117/12.911245
Show Author Affiliations
Nicole V. Ruiter, Karlsruhe Institute of Technology (Germany)
Michael Zapf, Karlsruhe Institute of Technology (Germany)
Torsten Hopp, Karlsruhe Institute of Technology (Germany)
Robin Dapp, Karlsruhe Institute of Technology (Germany)
Hartmut Gemmeke, Karlsruhe Institute of Technology (Germany)

Published in SPIE Proceedings Vol. 8320:
Medical Imaging 2012: Ultrasonic Imaging, Tomography, and Therapy
Johan G. Bosch; Marvin M. Doyley, Editor(s)

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