JP2009273835A5 - - Google Patents
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- JP2009273835A5 JP2009273835A5 JP2008130674A JP2008130674A JP2009273835A5 JP 2009273835 A5 JP2009273835 A5 JP 2009273835A5 JP 2008130674 A JP2008130674 A JP 2008130674A JP 2008130674 A JP2008130674 A JP 2008130674A JP 2009273835 A5 JP2009273835 A5 JP 2009273835A5
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Claims (9)
被検体内に第１超音波信号を送信するように前記２次元超音波探触子へ送信電気信号を出力するための送信部と、
前記２次元超音波探触子で受信された超音波を変換した受信電気信号を受信するための受信部と、
前記受信部の出力と予め設定された参照信号との相関処理を行うことによって、前記第１超音波信号に基づく前記被検体内から来た第２超音波信号の受信電気信号を前記受信部の出力から検出する相関部と、
前記相関部で検出した前記第２超音波信号の受信電気信号に基づいて前記被検体内の画像を形成する画像処理部とを備え、
前記送信電気信号は、予め定められた方式により符号化され、
前記参照信号は、前記第１超音波信号の周波数を基本周波数とした場合における検出すべき高調波の次数、前記被検体の診断部位、および、前記被検体の診断深度に応じて設定され、
前記相関部は、ＣＣＤ原理に基づくアナログ積和演算装置を備えて構成されること
を特徴とする超音波診断装置。 A two-dimensional structure comprising a plurality of piezoelectric elements arranged in a two-dimensional array, comprising a piezoelectric material and capable of converting signals between an electrical signal and an ultrasonic signal by utilizing a piezoelectric phenomenon. An ultrasound probe,
A transmission unit for outputting a transmission electric signal to the two-dimensional ultrasonic probe so as to transmit the first ultrasonic signal into the subject;
A receiving unit for receiving a received electrical signal obtained by converting the ultrasound received by the two-dimensional ultrasound probe;
By performing correlation processing between the output of the receiving unit and a preset reference signal, a reception electrical signal of the second ultrasonic signal coming from within the subject based on the first ultrasonic signal is obtained from the receiving unit. A correlation part detected from the output;
An image processing unit that forms an image in the subject based on the received electrical signal of the second ultrasonic signal detected by the correlation unit;
The transmission electrical signal is encoded by a predetermined method,
The reference signal is set according to the order of the harmonics to be detected when the frequency of the first ultrasonic signal is the fundamental frequency, the diagnostic part of the subject, and the diagnostic depth of the subject,
The correlation unit, the ultrasonic diagnostic apparatus according to claim Rukoto is configured to include an analog sum-of-products arithmetic unit based on the CCD principle.
を特徴とする請求項１に記載の超音波診断装置。 The ultrasonic diagnostic apparatus according to claim 1, wherein the transmission electrical signal is encoded by a method of using a chirp wave that changes its frequency with time.
を特徴とする請求項１または請求項２に記載の超音波診断装置。 The image processing unit forms an image in the subject based on a received electrical signal of second-order or higher-order harmonic components in the second ultrasonic signal detected by the correlation unit. The ultrasonic diagnostic apparatus according to claim 1 or 2.
を特徴とする請求項１に記載の超音波診断装置。 The ultrasonic diagnostic apparatus according to claim 1, wherein the transmission electrical signal is encoded by a PN code sequence.
前記相関部は、前記第１超音波信号の周波数を基本周波数とした場合における検出すべき高調波の次数、前記被検体の診断部位、および、前記被検体の診断深度に応じて前記複数の参照信号から１つの参照信号を選択して前記相関処理を行うこと
を特徴とする請求項１に記載の超音波診断装置。 A plurality of reference signals set according to the order of harmonics to be detected when the frequency of the first ultrasonic signal is a fundamental frequency, the diagnostic part of the subject, and the diagnostic depth of the subject are stored. A reference signal storage unit
The correlation unit includes the plurality of references according to the order of the harmonics to be detected when the frequency of the first ultrasonic signal is a fundamental frequency, the diagnosis part of the subject, and the diagnosis depth of the subject. The ultrasonic diagnostic apparatus according to claim 1, wherein the correlation process is performed by selecting one reference signal from a signal.
を特徴とする請求項５に記載の超音波診断装置。 The reference signal is positive when the order of harmonics to be detected is 2n (n is a positive integer) when the frequency of the first ultrasonic signal is a fundamental frequency. If the value is a value, it is the 2nth power of the first ultrasonic signal multiplied by +1, and if the first ultrasonic signal is a negative value, the first ultrasonic signal multiplied by -1 The ultrasonic diagnostic apparatus according to claim 5, wherein the ultrasonic diagnostic apparatus is 2n.
を特徴とする請求項５に記載の超音波診断装置。 The reference signal includes the first ultrasonic signal when the order of the harmonics to be detected is (2n + 1) (n is a positive integer) when the frequency of the first ultrasonic signal is a fundamental frequency. The ultrasonic diagnostic apparatus according to claim 5, wherein the ultrasonic diagnostic apparatus is a power of (2n + 1).
を特徴とする請求項１ないし請求項７のいずれか１項に記載の超音波診断装置。 The ultrasonic diagnostic apparatus according to any one of claims 1 to 7 , wherein the plurality of piezoelectric elements arranged in a two-dimensional array are separated for transmission and reception. .
を特徴とする請求項８に記載の超音波診断装置。 The ultrasonic diagnostic apparatus according to claim 8 , wherein the piezoelectric element for reception includes an organic piezoelectric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008130674A JP5083030B2 (en) | 2008-05-19 | 2008-05-19 | Ultrasonic diagnostic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008130674A JP5083030B2 (en) | 2008-05-19 | 2008-05-19 | Ultrasonic diagnostic equipment |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2009273835A JP2009273835A (en) | 2009-11-26 |
| JP2009273835A5 true JP2009273835A5 (en) | 2011-03-03 |
| JP5083030B2 JP5083030B2 (en) | 2012-11-28 |
Family
ID=41439791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008130674A Expired - Fee Related JP5083030B2 (en) | 2008-05-19 | 2008-05-19 | Ultrasonic diagnostic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5083030B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5545056B2 (en) * | 2010-06-16 | 2014-07-09 | コニカミノルタ株式会社 | Ultrasonic probe backing material, ultrasonic probe using the same, and ultrasonic medical diagnostic imaging apparatus |
| CN114127186A (en) * | 2019-08-30 | 2022-03-01 | 富士胶片株式会社 | Acoustic matching layer material, composition for acoustic matching layer material, acoustic wave probe, acoustic wave measurement device, and method for manufacturing acoustic wave probe |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53115591A (en) * | 1977-03-18 | 1978-10-09 | Tokyo Shibaura Electric Co | Ultrasonic diagnosing device |
| JPH03155847A (en) * | 1989-11-10 | 1991-07-03 | Olympus Optical Co Ltd | Ultrasonic observing device |
| JP3302946B2 (en) * | 1999-07-01 | 2002-07-15 | 松下電器産業株式会社 | Ultrasonic transmission / reception method and ultrasonic diagnostic apparatus |
| JP2003265466A (en) * | 2002-03-12 | 2003-09-24 | Olympus Optical Co Ltd | Ultrasonograph |
| JP4192598B2 (en) * | 2002-12-27 | 2008-12-10 | 株式会社日立メディコ | Ultrasonic diagnostic equipment |
| JP2005102988A (en) * | 2003-09-30 | 2005-04-21 | Fuji Photo Film Co Ltd | Ultrasonic diagnostic apparatus |
-
2008
- 2008-05-19 JP JP2008130674A patent/JP5083030B2/en not_active Expired - Fee Related
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