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Proceedings Paper

Prototype of a new 3D ultrasound computer tomography system: transducer design and data recording
Author(s): Rainer Stotzka; Helmut Widmann; Tim O. Mueller; Klaus Schlote-Holubek; Hartmut Gemmeke; Nicole V. Ruiter; Georg Goebel
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Paper Abstract

Ultrasound computer tomography is an imaging method capable of producing volume images with both high spatial and temporal resolution. The promising results of a 2D experimental setup of an ultrasound computer tomography system with at least 0.25 mm resolution encouraged us to build a new 3D demonstration system. It consists of three parts: a tank containing the sensor system, a data acquisition hardware and a computer workstation for image reconstruction and visualization. For the sensor system we developed and manufactured our own low-cost transducer array emitting or receiving ultrasound signals in three dimensions. To optimize the transducer geometry in respect to aperture angle and pressure amplitude the pressure field was simulated using the ultrasound simulation program Field II. Each transducer arrays system carries 8 emitting and 32 receiving elements with integrated amplifier and address electronics. 192 A-scans can be recorded in parallel by the data acquisition hardware. 48 multiplexing steps are needed to store all A-scans of the 1536 receiving transducers. After recording the data is transmitted to the computer workstation.

Paper Details

Date Published: 28 April 2004
PDF: 10 pages
Proc. SPIE 5373, Medical Imaging 2004: Ultrasonic Imaging and Signal Processing, (28 April 2004); doi: 10.1117/12.535351
Show Author Affiliations
Rainer Stotzka, Forschungszentrum Karlsruhe (Germany)
Helmut Widmann, Forschungszentrum Karlsruhe (Germany)
Tim O. Mueller, Forschungszentrum Karlsruhe (Germany)
Klaus Schlote-Holubek, Forschungszentrum Karlsruhe (Germany)
Hartmut Gemmeke, Forschungszentrum Karlsruhe (Germany)
Nicole V. Ruiter, Forschungszentrum Karlsruhe (Germany)
Georg Goebel, Forschungszentrum Karlsruhe (Germany)

Published in SPIE Proceedings Vol. 5373:
Medical Imaging 2004: Ultrasonic Imaging and Signal Processing
William F. Walker; Stanislav Y. Emelianov, Editor(s)

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