Ultrasonic diagnostic apparatus
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United States of America Patent
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-
Oct 30, 1990
Grant Date -
N/A
app pub date -
Mar 27, 1989
filing date -
Sep 30, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an ultrasonic diagnostic apparatus of this invention, the dimension of a sample volume can be adjusted both in the depth and azimuth directions in forming a transmission beam for both a B mode and a Doppler mode with the use of a common beam forming data, and an amount of radiation of the ultrasonic wave to a body to be examined can be reduced. In the B mode operation, transmission and reception of a sharply focusing ultrasonic beam are carried out based upon a B mode beam forming data, while in the Doppler mode, transmission and reception of a predetermined blurringly focusing ultrasonic beam are carried out based upon a beam forming data which is obtained by modifying the B mode beam forming data.
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