JPH0184616U - - Google Patents
Info
- Publication number
- JPH0184616U JPH0184616U JP1987181253U JP18125387U JPH0184616U JP H0184616 U JPH0184616 U JP H0184616U JP 1987181253 U JP1987181253 U JP 1987181253U JP 18125387 U JP18125387 U JP 18125387U JP H0184616 U JPH0184616 U JP H0184616U
- Authority
- JP
- Japan
- Prior art keywords
- blood flow
- echo signal
- tomographic
- information processing
- gain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Ultra Sonic Daignosis Equipment (AREA)
Description
第１図ないし第３図は本考案の実施例を示し、
第１図は超音波ドツプラー装置の要部を示すブロ
ツク図、第２図はゲイン設定操作部と該操作部に
より設定されたタイムゲインカーブとの関係を示
す説明図、第３図はタイムゲインカーブにより表
示レベルが調整された血流情報の画像表示例を示
す説明図である。また、第４図は従来の血流情報
の画像表示例を示す説明図である。
１……超音波ドツプラー装置、２……トランス
ジユーサ、４……送受波回路、１０……増幅回路
、１２ａ，１２ｂ……位相検波器、２０……ゲイ
ン設定操作部、２８……ゲイン制御手段。
1 to 3 show embodiments of the present invention,
Fig. 1 is a block diagram showing the main parts of the ultrasonic Doppler device, Fig. 2 is an explanatory diagram showing the relationship between the gain setting operation section and the time gain curve set by the operation section, and Fig. 3 is the time gain curve. FIG. 3 is an explanatory diagram showing an example of an image display of blood flow information whose display level has been adjusted by. Further, FIG. 4 is an explanatory diagram showing an example of a conventional image display of blood flow information. DESCRIPTION OF SYMBOLS 1... Ultrasonic Doppler device, 2... Transducer, 4... Transmission/reception circuit, 10... Amplification circuit, 12a, 12b... Phase detector, 20... Gain setting operation unit, 28... Gain control means.
Claims (1)
号から断層情報を抽出する断層情報処理部と、超
音波をパルス放射して得られる血流エコー信号か
ら血流情報を抽出する血流情報処理部とを備え、
前記血流情報処理部には、血流エコー信号を増幅
する増幅回路と、この増幅回路で増幅された血流
エコー信号を位相検波してドツプラー信号を検出
する位相検波器とが設けられている超音波ドツプ
ラー装置において、 生体内の深さ方向に沿つたタイムゲインカーブ
を設定するゲイン設定操作部を設けるとともに、
このゲイン設定操作部で設定されたタイムゲイン
カーブに基づいて血流エコー信号のゲインを経時
的に増減するタイムゲイン制御信号を前記増幅回
路に出力するゲイン制御手段を含むことを特徴と
する超音波ドツプラー装置。[Claim for Utility Model Registration] A tomographic information processing unit that extracts tomographic information from a tomographic echo signal obtained by sector-scanning ultrasonic waves, and a tomographic information processing unit that extracts tomographic information from a tomographic echo signal obtained by emitting pulsed ultrasonic waves. A blood flow information processing unit that extracts
The blood flow information processing section is provided with an amplifier circuit that amplifies the blood flow echo signal, and a phase detector that detects the Doppler signal by phase-detecting the blood flow echo signal amplified by the amplifier circuit. In the ultrasonic Doppler device, a gain setting operation part is provided to set a time gain curve along the depth direction inside the living body, and
Ultrasonic waves characterized by including a gain control means for outputting to the amplifier circuit a time gain control signal that increases or decreases the gain of the blood flow echo signal over time based on the time gain curve set by the gain setting operation section. Doppler device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987181253U JPH0184616U (en) | 1987-11-27 | 1987-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987181253U JPH0184616U (en) | 1987-11-27 | 1987-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0184616U true JPH0184616U (en) | 1989-06-06 |
Family
ID=31472742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987181253U Pending JPH0184616U (en) | 1987-11-27 | 1987-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0184616U (en) |
-
1987
- 1987-11-27 JP JP1987181253U patent/JPH0184616U/ja active Pending
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