Method of ultrasonic imaging of body cavities
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United States of America Patent
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Dec 20, 1994
Issued Date -
N/A
app pub date -
Oct 25, 1993
filing date -
Oct 6, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The ultrasound imaging of body cavities and surrounding organs is carried out by introducing into the body cavity an aqueous solution of water-soluble hydrocolloid. The hydrocolloid solution is homogeneous, has a viscosity of 200 to 800 cp at 25.degree. C., and is free of gas bubbles and ultrasound-reflecting solid particles. The introduction of the solution into the cavity displaces air therefrom, and while the solution is retained in the cavity an ultrasonic imaging beam is applied to obtain an imaging contrast in which the solution appears sonolucent, that is, essentially black against the more sonoreflective body tissues and organs.
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