发明名称 |
ULTRASONIC DIAGNOSIS SYSTEM |
摘要 |
An ultrasonic diagnosis system comprising a variable setting arrangement including an ultrasonic transducer array for transmitting a pulse-like ultrasonic wave to an object and detecting a reflection wave from the object, and assuming the acoustic velocity of the object; a control arrangement for determining the depth of electronic focusing in accordance with this assumed acoustic velocity; and a display for displaying the assumed acoustic velocity. The ultrasonic diagnosis system determines whether the reflection signal of the object at a predetermined position is in-focus or out-of-focus and knows the actual acoustic velocity of the object from the assumed acoustic velocity when the reflection signal is in-focus. |
申请公布号 |
DE3474862(D1) |
申请公布日期 |
1988.12.01 |
申请号 |
DE19843474862 |
申请日期 |
1984.02.14 |
申请人 |
HITACHI, LTD. |
发明人 |
UMEMURA, SHINICHIRO;KATAKURA, KAGEYOSHI;OGAWA, TOSHIO |
分类号 |
A61B8/00;A61B8/08;A61B8/14;G01N29/04;G01N29/06;G01N29/26;G01N29/44;G01S7/52;G01S15/89;G10K11/34;(IPC1-7):G01S7/52;G01S7/62 |
主分类号 |
A61B8/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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