JPH05154153A - Ultrasonic diagnostic device - Google Patents
Ultrasonic diagnostic deviceInfo
- Publication number
- JPH05154153A JPH05154153A JP3348316A JP34831691A JPH05154153A JP H05154153 A JPH05154153 A JP H05154153A JP 3348316 A JP3348316 A JP 3348316A JP 34831691 A JP34831691 A JP 34831691A JP H05154153 A JPH05154153 A JP H05154153A
- Authority
- JP
- Japan
- Prior art keywords
- image
- scanning
- scanning lines
- section
- fan
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52046—Techniques for image enhancement involving transmitter or receiver
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52085—Details related to the ultrasound signal acquisition, e.g. scan sequences
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は超音波診断装置に関し、
詳しくは、コンベックス、セクタ走査用のプロープ等を
有して、扇形画像を表示する超音波診断装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic diagnostic apparatus,
More specifically, the present invention relates to an ultrasonic diagnostic apparatus having a convex, a probe for sector scanning, and the like and displaying a fan-shaped image.
【０００２】[0002]
【従来の技術】従来のコンベックスまたはセクタ走査用
のプローブを備えた超音波診断装置は、図４のように扇
形の画像を表示する。図でも明らかなように、これらの
超音波診断装置では扇形画像１１を構成する走査線１２
が患部の深度にかかわらず同一本数である。2. Description of the Related Art An ultrasonic diagnostic apparatus having a conventional probe for convex or sector scanning displays a fan-shaped image as shown in FIG. As is clear from the figure, in these ultrasonic diagnostic apparatuses, the scanning lines 12 forming the fan-shaped image 11 are formed.
Are the same regardless of the depth of the affected area.
【０００３】[0003]
【発明が解決しようとする課題】そのため、扇形画像１
１の浅い部分の走査線間隔ｐ1と、深い部分の走査線間
隔ｐ2とが大きく異なる。つまり、同一の扇形画像１１
であっても位置が深くなるに従い、画像が粗くなり画質
が劣る。また、浅いところでは隣合う走査線が不用に重
なってしまう。その結果、画像を用いた診断や計測の精
度が不安定であるという問題があった。本発明は上記問
題点を解決するためになされたもので、その目的とする
ところは、均一で高品位の扇形画像を表示することがで
きる超音波診断装置を提供することにある。Therefore, the fan-shaped image 1
The scanning line spacing p 1 in the shallow portion of 1 and the scanning line spacing p 2 in the deep portion are significantly different. That is, the same fan-shaped image 11
However, the deeper the position, the coarser the image and the poorer the image quality. In addition, adjacent scanning lines unnecessarily overlap at a shallow place. As a result, there is a problem that the accuracy of diagnosis and measurement using images is unstable. The present invention has been made to solve the above problems, and an object thereof is to provide an ultrasonic diagnostic apparatus capable of displaying a uniform and high-quality fan-shaped image.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に、第１の発明は、コンベックス、セクタ走査用プロー
ブ等の扇形画像を表示可能なプローブを備えた超音波診
断装置において、表示画像を深さ方向の複数の区間に区
分し、区間ごとにその深度に応じて走査線を補間し、ス
キャンする走査線の数を増すことを特徴とする。In order to achieve the above object, a first aspect of the present invention provides a display image in an ultrasonic diagnostic apparatus including a probe capable of displaying a sector image such as a probe for a convex or a sector scan. It is characterized in that it is divided into a plurality of sections in the depth direction, the scanning lines are interpolated according to the depth of each section, and the number of scanning lines to be scanned is increased.
【０００５】第２の発明は、第１の発明において、走査
線の密度が全ての区間でほぼ一定となるように各区間ご
とに走査線を補間することを特徴とする。A second invention is characterized in that, in the first invention, the scanning lines are interpolated for each section so that the density of the scanning lines is substantially constant in all the sections.
【０００６】[0006]
【作用】第１の発明においては、表示された扇形画像が
深さ方向の複数の区間に区分され、区間ごとにその深度
に応じて走査線が補間されることにより、画像の深い位
置における走査線の間隔が狭められて、深い位置の画像
も密になる。According to the first aspect of the invention, the displayed fan-shaped image is divided into a plurality of sections in the depth direction, and the scanning line is interpolated according to the depth of each section, so that the scanning at a deep position of the image is performed. The distance between the lines is narrowed, and the images at deep positions are also dense.
【０００７】第２の発明においては、走査線の密度が全
ての区間でほぼ一定となるように各区間ごとに走査線が
補間されて、全体の画質が深度にかかわらず均一とな
る。In the second aspect, the scanning lines are interpolated in each section so that the density of the scanning lines is substantially constant in all sections, so that the overall image quality becomes uniform regardless of the depth.
【０００８】[0008]
【実施例】以下、図に沿って本発明の実施例を説明す
る。図１は本発明に係る超音波診断装置の概略構成を示
すブロック図である。図において、１は超音波振動子を
内蔵したプローブ、２は発振器やアンプを等を有する送
受信回路、３は受信信号をディジタル信号に変換するＡ
／Ｄ変換器、４はラインメモリ、５はフレーム相関処理
を行う相関回路、６は１表示画面分の画像データのみを
格納するイメージメモリ、７は画像データをアナログ信
号に変換するＤ／Ａ変換器、８はテレビモニタ等の表示
装置、９は送受信回路２に対して走査の制御を行う走査
制御回路、１０は走査制御回路９および相関回路５を制
御するマイクロコンピュータである。なお、マイクロコ
ンピュータ１０はこれと同等の機能を持つ制御回路によ
り置き換えてもよい。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of an ultrasonic diagnostic apparatus according to the present invention. In the figure, 1 is a probe with a built-in ultrasonic transducer, 2 is a transmission / reception circuit having an oscillator, an amplifier, etc., 3 is a signal converting a received signal into a digital signal A
/ D converter, 4 is a line memory, 5 is a correlation circuit for performing frame correlation processing, 6 is an image memory for storing only image data for one display screen, and 7 is D / A conversion for converting image data into analog signals. Reference numeral 8 is a display device such as a television monitor, 9 is a scanning control circuit for controlling scanning of the transmission / reception circuit 2, and 10 is a microcomputer for controlling the scanning control circuit 9 and the correlation circuit 5. The microcomputer 10 may be replaced with a control circuit having a function equivalent to this.
【０００９】次に上記構成において、第１の発明である
ところの走査線の補間処理を、図２により説明する。図
に示されるように、扇形画像１３は通常の走査線１４に
より一定間隔でスキャンされている。この扇形画像１３
を走査線方向に３つに区分し、中心より、すなわちプロ
ーブ（図示せず）に近い方の区間Ａはそのままとする。
次の区間Ｂおよび区間Ｃでは、隣合う走査線１４の中間
位置に走査線１４ｂをスキャンさせる。さらに次の区間
Ｃでは、走査線１４と走査線１４ｂとの中間位置に走査
線１４ｃをスキャンさせる。Next, in the above-mentioned structure, the interpolation processing of the scanning line according to the first aspect of the invention will be described with reference to FIG. As shown in the figure, the fan-shaped image 13 is scanned by regular scan lines 14 at regular intervals. This fan-shaped image 13
Is divided into three in the scanning line direction, and the section A that is closer to the probe (not shown) than the center is left unchanged.
In the next section B and section C, the scanning line 14b is scanned at an intermediate position between adjacent scanning lines 14. Further, in the next section C, the scanning line 14c is scanned at an intermediate position between the scanning lines 14 and 14b.
【００１０】このように扇形画像１３は走査線方向に深
度が増すにつれて、新たな走査線１４ｂ，１４ｃが補間
されることにより、隣合う走査線の間隔が最も浅い区間
Ａの間隔ｐａ以下に狭められることがない。これらの区
間Ａ，Ｂ，Ｃごとに多段フォーカス機能により画像変換
処理がなされる。その結果、深度が増した区間について
も、表示画像が密になり、従来のように画質が劣化する
ことなくなって、扇形画像１３の何れの位置でも高品位
の画像が得られることになる。As described above, in the fan-shaped image 13, as the depth increases in the scanning line direction, new scanning lines 14b and 14c are interpolated, so that the interval between adjacent scanning lines is narrowed to the interval pa or less of the shallowest section A. Never be. Image conversion processing is performed for each of these sections A, B, and C by the multistage focus function. As a result, even in the section where the depth is increased, the display image becomes dense, and the image quality does not deteriorate as in the conventional case, and a high-quality image can be obtained at any position of the fan-shaped image 13.
【００１１】次に、第２の発明であるところの補間する
走査線の本数を算出する処理を、図３により説明する。
図に示されるように、扇形画像１５は通常の走査線６１
により一定間隔でスキャンされている。この扇形画像１
５を走査線方向の４つの区間に区分し、最も中心側の区
間７１はそのままとする。次の区間７２以降について
は、隣合う走査線６１の間を３等分してそれぞれ２本の
走査線６２をスキャンさせる。さらに次の区間７３以降
では、隣合う走査線６２の間を２等分してそれぞれ走査
線６３をスキャンさせる。最後の区間７４では、隣合う
走査線６１と走査線６２との間を２等分して走査線６４
をスキャンさせる。Next, the process of calculating the number of scanning lines to be interpolated, which is the second invention, will be described with reference to FIG.
As shown in the figure, the fan-shaped image 15 has a normal scan line 61.
Are scanned at regular intervals. This fan-shaped image 1
5 is divided into four sections in the scanning line direction, and the section 71 closest to the center is left as it is. In the subsequent section 72 and thereafter, the adjacent scanning lines 61 are equally divided into three and two scanning lines 62 are scanned. Further, in the next section 73 and thereafter, the space between the adjacent scanning lines 62 is equally divided into two and the scanning lines 63 are scanned. In the last section 74, the space between the adjacent scanning lines 61 and 62 is equally divided into two scanning lines 64.
To scan.
【００１２】ここで、各区間ごとの走査線６１と走査線
６１との間隔を、それぞれｘ1，ｘ2，ｘ3，ｘ4とし、区
間ごとの超音波ビームの幅をそれぞれｄ1，ｄ2，ｄ3，
ｄ4とし、さらに、区間７２〜７４へ補間する走査線の
本数をそれぞれｎ2，ｎ3，ｎ4として、これらの関係を
数１のようにした。Here, the intervals between the scanning lines 61 for each section are x 1 , x 2 , x 3 , x 4 , respectively, and the widths of the ultrasonic beams for each section are d 1 , d, respectively. 2 , d 3 ,
d 4 and the number of scanning lines to be interpolated into the sections 72 to 74 are n 2 , n 3 , and n 4 , respectively, and the relationship between them is set as shown in Equation 1.
【００１３】[0013]
【数１】 [Equation 1]
【００１４】なお、数１中のｋは装置ごとに任意に設定
可能な定数である。この数１を満足する走査線の補間本
数を区間ごとに算出し、その本数ｎ2〜ｎ4に従い、それ
ぞれ走査線６２〜６４が具体的に補間される。その結
果、各区間７１〜７４は互いにほぼ等しい走査線密度と
なり、扇形画像１５全体でほぼ均一な画質が得られるこ
とになる。Note that k in the equation 1 is a constant that can be set arbitrarily for each device. The number of interpolation lines of the scanning lines that satisfy the formula 1 is calculated for each section, and the scanning lines 62 to 64 are specifically interpolated according to the number n 2 to n 4 . As a result, the scanning line densities of the sections 71 to 74 are substantially equal to each other, and a substantially uniform image quality is obtained in the entire fan-shaped image 15.
【００１５】これら第１および第２の発明の具体的な処
理は、図１のマイクロコンピュータ１０等の制御手段に
よりおこなわれる。すなわち、コンベックス・セクタ等
の扇形画像用のプローブ１が選択されると、マイクロコ
ンピュータ１０が、数１に基づき１フレーム分の走査線
の本数ｎを算出して走査制御回路９へ送る。この本数ｎ
は深度の浅いところでは少なく、深度の深いところでは
多くなる。走査線の本数ｎが送られた走査制御回路９
は、その本数ｎに基づき所定のタイミングで走査線の送
受信指令を作成して送受信回路２へ送る。以後、送受信
回路２で受信された信号を通常の処理により区間および
走査線ごとに画像変換処理して扇形画像を表示する。The specific processing of the first and second inventions is performed by the control means such as the microcomputer 10 shown in FIG. That is, when the probe 1 for fan-shaped images such as convex sectors is selected, the microcomputer 10 calculates the number n of scanning lines for one frame based on the equation 1 and sends it to the scanning control circuit 9. This number n
Is less at shallow depths and more at deep depths. Scan control circuit 9 to which the number n of scanning lines is sent
Generates a transmission / reception command for a scanning line at a predetermined timing based on the number n and sends it to the transmission / reception circuit 2. After that, the signal received by the transmission / reception circuit 2 is subjected to image conversion processing for each section and scanning line by a normal processing to display a fan-shaped image.
【００１６】これらの処理では、１フレームの画像を作
成する時間は増加しないので、フレームレートが落ちる
ことなく、深度の深い位置の画像が鮮明になる。それに
より、この扇形画像を用いての診断が正確になるととも
に計測の精度も向上する。In these processes, the time for forming one frame image does not increase, so the image at a deep position becomes clear without decreasing the frame rate. As a result, the diagnosis using this fan-shaped image becomes accurate, and the measurement accuracy also improves.
【００１７】[0017]
【発明の効果】以上述べたように第１の発明によれば、
表示された扇形画像の深度に応じて走査線が補間される
ことにより、深い位置の画像を形成する走査線の間隔が
狭められて、深い位置の画像も密になる。それにより、
深い位置についても高品位の扇形画像が得られるように
なる。As described above, according to the first invention,
By interpolating the scanning lines according to the depth of the displayed fan-shaped image, the interval between the scanning lines forming the image at the deep position is narrowed, and the image at the deep position is also dense. Thereby,
High-quality fan-shaped images can be obtained even at deep positions.
【００１８】第２の発明によれば、さらに走査線の間隔
が深度にかかわらずほぼ一定となるように走査線が補間
されて画質が均一となる。それにより、診断、計測がよ
り正確に行えるようになる。According to the second aspect, the scanning lines are interpolated so that the intervals between the scanning lines are substantially constant regardless of the depth, so that the image quality becomes uniform. As a result, diagnosis and measurement can be performed more accurately.
【図１】第１および第２の発明が適用される超音波診断
装置の構成を示すブロック図である。FIG. 1 is a block diagram showing a configuration of an ultrasonic diagnostic apparatus to which the first and second inventions are applied.
【図２】第１の発明の処理内容を説明する図である。FIG. 2 is a diagram illustrating processing contents of the first invention.
【図３】第２の発明の処理内容を説明する図である。FIG. 3 is a diagram for explaining the processing content of the second invention.
【図４】従来例を示す説明図である。FIG. 4 is an explanatory diagram showing a conventional example.
１ プローブ ２ 送受信回路 ３ Ａ／Ｄ変換器 ４ ラインメモリ ５ 相関回路 ６ イメージメモリ ７ Ｄ／Ａ変換器 ８ 表示装置 ９ 走査制御回路 １０ マイクロコンピュータ １３ 扇形画像 １４ 走査線 １４ｂ 走査線 １４ｃ 走査線 １５ 扇形画像 ６１〜６４ 走査線 ７１〜７４ 区間 Ａ〜Ｃ 区間 DESCRIPTION OF SYMBOLS 1 probe 2 transmitting / receiving circuit 3 A / D converter 4 line memory 5 correlation circuit 6 image memory 7 D / A converter 8 display device 9 scanning control circuit 10 microcomputer 13 fan-shaped image 14 scanning line 14b scanning line 14c scanning line 15 fan-shaped Image 61-64 Scan line 71-74 Section AC Section
Claims (2)
超音波診断装置において、 表示画像を深さ方向の複数の区間に区分し、区間ごとに
その深度に応じて走査線を補間し、スキャンする走査線
の数を増すことを特徴とする超音波診断装置。1. An ultrasonic diagnostic apparatus equipped with a probe capable of displaying a fan-shaped image, wherein the display image is divided into a plurality of sections in the depth direction, and scanning lines are interpolated and scanned according to the depth for each section. An ultrasonic diagnostic apparatus characterized in that the number of scanning lines to be increased is increased.
て、 走査線の密度が全ての区間でほぼ一定となるように各区
間ごとに走査線を補間することを特徴とする超音波診断
装置。2. The ultrasonic diagnostic apparatus according to claim 1, wherein scanning lines are interpolated for each section so that the density of the scanning lines is substantially constant in all sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3348316A JPH05154153A (en) | 1991-12-04 | 1991-12-04 | Ultrasonic diagnostic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3348316A JPH05154153A (en) | 1991-12-04 | 1991-12-04 | Ultrasonic diagnostic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05154153A true JPH05154153A (en) | 1993-06-22 |
Family
ID=18396214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3348316A Withdrawn JPH05154153A (en) | 1991-12-04 | 1991-12-04 | Ultrasonic diagnostic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05154153A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001231781A (en) * | 2000-02-21 | 2001-08-28 | Hitachi Medical Corp | Ultrasonic diagnosing device and method for forming tomographic image of subject |
| WO2008010366A1 (en) * | 2006-07-18 | 2008-01-24 | Hitachi, Ltd. | Ultrasonographic device |
| JP2012105751A (en) * | 2010-11-16 | 2012-06-07 | Hitachi Aloka Medical Ltd | Ultrasonic image processing apparatus |
| WO2016152602A1 (en) * | 2015-03-23 | 2016-09-29 | 富士フイルム株式会社 | Acoustic wave image generating device and control method therefor |
-
1991
- 1991-12-04 JP JP3348316A patent/JPH05154153A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001231781A (en) * | 2000-02-21 | 2001-08-28 | Hitachi Medical Corp | Ultrasonic diagnosing device and method for forming tomographic image of subject |
| WO2008010366A1 (en) * | 2006-07-18 | 2008-01-24 | Hitachi, Ltd. | Ultrasonographic device |
| US8506483B2 (en) | 2006-07-18 | 2013-08-13 | Hitachi, Ltd. | Ultrasonographic device |
| JP2012105751A (en) * | 2010-11-16 | 2012-06-07 | Hitachi Aloka Medical Ltd | Ultrasonic image processing apparatus |
| US9569818B2 (en) | 2010-11-16 | 2017-02-14 | Hitachi, Ltd. | Ultrasonic image processing apparatus |
| WO2016152602A1 (en) * | 2015-03-23 | 2016-09-29 | 富士フイルム株式会社 | Acoustic wave image generating device and control method therefor |
| JPWO2016152602A1 (en) * | 2015-03-23 | 2017-08-03 | 富士フイルム株式会社 | Acoustic wave image generation apparatus and control method thereof |
| US10925578B2 (en) | 2015-03-23 | 2021-02-23 | Fujifilm Corporation | Acoustic wave image generating apparatus and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5065629B2 (en) | Ultrasonic diagnostic apparatus and control program for ultrasonic diagnostic apparatus | |
| US20020161299A1 (en) | Real-time arbitrary mmode for ultrasonic imaging system | |
| JPH0394739A (en) | Ultrasonic diagnosing device | |
| JP3070133B2 (en) | Ultrasound diagnostic equipment | |
| US5910116A (en) | Ultrasonic diagnostic apparatus that regenerates image signals according to a non-interlace scheme | |
| JPH0352034B2 (en) | ||
| JP2772045B2 (en) | Ultrasound diagnostic equipment | |
| JP2950632B2 (en) | Ultrasound diagnostic equipment | |
| US10639013B2 (en) | Ultrasound diagnostic apparatus, sound velocity setting method, and recording medium | |
| JPH05154153A (en) | Ultrasonic diagnostic device | |
| JPS6223829B2 (en) | ||
| JPH1141565A (en) | Image data interpolation device | |
| JPH0838475A (en) | Ultrasonic diagnostic device | |
| US20170319173A1 (en) | Acoustic wave image generating apparatus and control method thereof | |
| JP2963193B2 (en) | Ultrasound diagnostic equipment | |
| JPH0975350A (en) | Ultrasonic diagnostic system | |
| JPH1014917A (en) | Ultrasonic imaging apparatus | |
| JP2714101B2 (en) | Ultrasound diagnostic equipment | |
| JPH069620Y2 (en) | Ultrasonic diagnostic equipment | |
| JPH06217981A (en) | Ultrasonic diagnostic device | |
| JP2604053B2 (en) | Ultrasonic beam scanning method for ultrasonic diagnostic equipment | |
| JPS59218145A (en) | Ultrasonic examining apparatus | |
| JPH07323029A (en) | Ultrasonic diagnostic apparatus | |
| JPH05228140A (en) | Ultrasonic diagnostic system | |
| JP2581114B2 (en) | Blood flow image forming method in ultrasonic Doppler device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990311 |