Contrast resolution tissue equivalent ultrasound test object

Details Contrast resolution tissue equivalent ultrasound test object Contrast resolution tissue equivalent ultrasound test object

1980-09-11

1982-05-25

Swisher, S. Clement

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01N 2900

Patent

active

043310214

ABSTRACT:
A contrast resolution tissue-equivalent ultrasound test phantom comprises a block of material having ultrasonic propagation characteristics similar to that of human or animal tissue. A plurality of contrast objects are embedded in the block, each having a different reflectivity. The contrast objects have at least one dimension wherein the size of the object in cross-section decreases so that periodic ultrasonic scans of all of the objects simultaneously produce successive displays of plural cross-sectional patterns, the pattern in each display having the same size but different contrasts whereas the pattern size changes for successive displays.

REFERENCES:
patent: 3933026 (1976-01-01), Ham et al.
patent: 4116040 (1978-09-01), Schoknecht
patent: 4286455 (1981-09-01), Ophir et al.
Madsen et al., Tissue Mimicking Materials for Ultrasound _Phantoms, Med. Phys. 5(5) Sep./Oct. 1978, pp. 391-394.
Wisconson Ultrasound Tissue Phantoms, published by Radiation Measurments Inc., Box 44, Middleton, Wisc. 53562, 2 pages.
Carson, P. L., What a Hospital Physicist Needs in a Transducer Characterization Standard, etc. IEEE, Transact on Sonics and Ultrasonics, vol. S.U. 26 No. 1, Jan. 1979.

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