In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 66, No. S1 ( 1979-11-01), p. S46-S46
Abstract:
A versatile laboratory scanner of modular design is described which can support a wide variety of ultrasound transducers and transducer arrays. The basic design consists of a rotating platform on which are mounted various types of interchangeable, temperature regulated water tanks. The platform is rotated in 0.02° steps by a high torque stepping motor. Various transmitter and receiver geometries or configurations are arranged in each water tank. One tank configuration uses spherical or cylindrical acoustic waves and a curvilinear, circular receiver array for high speed (1 to 10 s) data collection for reconstruction of tissue temperature. This method makes use of acoustic refractive index reconstruction tomography and the temperature dependence of the acoustic refractive index. This tank configuration also permits the use of microwave or high-power, focused ultrasound beams for tissue heating while simultaneously reconstructing the temperature of the tissue samples. A second tank configuration uses plane waves and a rectilinearly scanned receiving array for diffraction tomography studies. A third tank configuration permits the use of a new high resolution reflection or scattering imaging technique now known as either “synthetic focus imaging” or “reflection tomography.” [Supported by NIH grants NCI IR01 CA 23430 and H2-00170 and PDP-110 from American Cancer Society.]
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
1979
detail.hit.zdb_id:
1461063-2
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