JPH11221216A - Ultrasonograph - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the correspondence between respective positions on a B-mode image and on a composite picture clearly visible when the images are displayed side side. SOLUTION: This ultrasonograph comprises a scanning means for scanning the interior of a subject in a plane by using an ultrasonic probe and an ultrasonograph for displaying a B-mode image and a composite image side by side, the composite image being made by overlapping a CFM(Color Flow Mapping) image on the B-mode image or a PDI(Power Doppler Iuraging) image on the B-mode image, wherein a first cursor K1 and a second cursor K2 are simultaneously displayed, the first cursor K1 indicating a position on the B-mode image Ib and the second cursor K2 indicating on the composite image Ix a position corresponding to the position indicated by the first cursor K1. Thus, a region of an abnormal blood flow indicated on the composite image Ix and a region of a tissue corresponding thereto are made clearly visible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic image display method and an ultrasonic diagnostic apparatus, and more particularly, to clarify the correspondence between positions on both a B-mode image and a composite image displayed side by side. The present invention relates to an ultrasonic image display method and an ultrasonic diagnostic apparatus that allow visual recognition.

[0002]

2. Description of the Related Art As shown in FIG. 8, in an ultrasonic diagnostic apparatus, a B-mode image Ib is displayed on a screen and a composite image Ix in which a B-mode image and a CFM (Color Flow Mapping) image Ic are superimposed side by side. Can be displayed. Or, while displaying the B-mode image Ib,
B-mode images and PDI (Power Doppler)
Imaging), and a composite image in which images are superimposed can be displayed. The operator looks at the composite image Ix to find the abnormal blood flow location P, and also looks at the B-mode image Ib to determine which tissue site the abnormal blood flow location falls on.

[0003]

In the conventional ultrasonic diagnostic apparatus, a B-mode image Ib and a composite image Ib displayed side by side are displayed.
The operator compares x with each other, and recognizes the abnormal blood flow site P and the corresponding tissue site. However, there was a problem that it was not easy to clearly recognize the correspondence between the two. Therefore, an object of the present invention is to provide an ultrasonic image display method and an ultrasonic diagnostic apparatus that allow the correspondence between each position on both a B-mode image and a composite image displayed side by side to be clearly visible. is there.

[0004]

According to a first aspect, the present invention provides a composite image in which a B-mode image and a CFM image are superimposed or a B-mode image and a PDI image are superimposed. An ultrasound image display method for displaying an image, wherein a first cursor and a second cursor are simultaneously displayed, a first cursor points to a position on a B-mode image, and a second cursor is used to indicate the first cursor. There is provided an ultrasonic image display method characterized by pointing to a position on a composite image corresponding to a position pointed by a cursor. In the ultrasonic image display method according to the first aspect, two cursors are simultaneously displayed, and one cursor indicates a position on the B-mode image, and the other cursor indicates a corresponding position on the composite image. It is possible to clearly recognize the response.

[0005] In a second aspect, the present invention provides a scanning means for scanning the inside of a subject two-dimensionally using an ultrasonic probe, displaying a B-mode image and arranging the B-mode image and a B-mode image and a CFM. An ultrasonic diagnostic apparatus for displaying a composite image in which images are superimposed or a composite image in which a B-mode image and a PDI image are superimposed, wherein two cursors respectively point to a position on the B-mode image and a corresponding position on the composite image And an ultrasonic diagnostic apparatus characterized by comprising a cursor display means for simultaneously displaying. In the ultrasonic diagnostic apparatus according to the second aspect, the ultrasonic image display method according to the first aspect can be suitably implemented.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the drawings. Note that the present invention is not limited by this.

FIG. 1 is a block diagram showing an ultrasonic diagnostic apparatus according to one embodiment of the present invention. The ultrasonic diagnostic apparatus 100 includes an ultrasonic probe 1 that transmits an ultrasonic pulse and receives an ultrasonic echo, a transmission / reception control unit 2 that electronically scans a scan plane to obtain a sound ray signal, A B-mode processing unit 3 for generating image data based on the intensity of the echo,
A CFM mode processing unit 4 for generating image data based on the phase of the Doppler component of the ultrasonic echo, a PDI mode processing unit 5 for generating image data based on the power of the Doppler component of the ultrasonic echo, The apparatus includes a central processing unit 6 for generating a display image, a CRT 7 for displaying the display image, and an input device 8 for inputting an instruction by an operator. The central processing unit 6 includes a cursor display process 6a described in detail later. The input device 8
Is provided with a cursor key 8a for controlling the cursor display processing 6a.

The central processing unit 6 displays a B-mode image Ib as shown in FIG. 3 according to an instruction from the operator, and arranges the B-mode image Ib and the CFM image Ic alongside the B-mode image Ib.
Is displayed (or a composite image in which the B-mode image and the PDI image are superimposed). At first, the cursor display processing 6a is not activated, and the cursor is not displayed. When the cursor key 8a is pressed in this state, the cursor display processing 6a is started.

FIG. 2 is a flowchart showing the cursor display processing. In step S1, coordinates X and Y for displaying a cursor are initialized. X = xo, Y = yo where x
o and yo are, for example, the center position of the screen.

In step S2, a cursor is displayed at coordinates X and Y. Initially, as shown in FIG. 4, a cursor K is displayed, for example, at the center of the screen. In step S3, it is checked whether the cursor key 8a has been pressed. If the cursor key 8a has not been pressed, the process proceeds to step S4. If the cursor key 8a has been pressed, the process proceeds to step S7. In step S4, it is checked whether a cursor moving operation (for example, an operation of a trackball) has been performed. If no operation has been performed, the process returns to step S3. In step S5, the moving operation amounts Δx and Δy are acquired. In step S6, coordinates X and Y for displaying the cursor are calculated. X = X + Δx, Y = Y + Δy Then, the process returns to step S2. Step S2 above
By the loop of S6, as shown in FIG. 5, one cursor K is displayed and can be arbitrarily moved on the screen.

In step S7, coordinates X1, Y1 for displaying the first cursor and coordinates X1, Y1 for displaying the second cursor
2, Y2 is initialized. X1 = x01, Y1 = y01 X2 = x02, Y2 = y02 Here, x01 and y01 are, for example, the center position of the B-mode image Ib, and x02 and y02 are positions x0 on the B-mode image Ib.
1, a position on the composite image Ix corresponding to y01. In step S8, a first cursor is displayed at coordinates X1, Y1. A second cursor is displayed at coordinates X2 and Y2.
First, as shown in FIG. 6, for example, a first cursor K1 is displayed at the center position of the B-mode image Ib, and the composite image Ix
A second cursor K2 is displayed at the corresponding position of. In step S9, it is checked whether the cursor key 8a has been pressed,
If it has not been pressed, the process proceeds to step S10, and if it has been pressed, the cursor display processing 6a ends. Cursor display processing 6
When a ends, the display returns to the display state of FIG. Step S1
In the case of 0, it is checked whether or not a cursor movement operation (for example, operation of a trackball) is performed. In step S11, the moving operation amounts Δx and Δy are obtained. In step S12, the coordinates X1 and Y1 for displaying the first cursor and the coordinates X1 for displaying the second cursor
2, Y2 is calculated. X1 = X1 + Δx, Y1 = Y1 + Δy X2 = X2 + Δx, Y2 = Y2 + Δy Then, the process returns to step S8. Step S8 and above
By the loop of S12, as shown in FIG. 7, two cursors K1 and K2 can be displayed and arbitrarily moved in the B-mode image Ib and the composite image Ix.

According to the ultrasonic diagnostic apparatus 100 described above, B
Since the cursors K1 and K2 indicate the position on the mode image Ib and the corresponding position on the composite image Ix, respectively, the composite image I
The abnormal blood flow site P on x and the corresponding tissue site can be clearly recognized.

[0013]

According to the ultrasonic image display method and the ultrasonic diagnostic apparatus of the present invention, it is possible to clearly recognize the correspondence of each position on both the B-mode image and the composite image displayed side by side. .

[Brief description of the drawings]

FIG. 1 is a block diagram showing an ultrasonic diagnostic apparatus according to one embodiment of the present invention.

FIG. 2 is a flowchart of a cursor display process by the ultrasonic diagnostic apparatus of FIG. 1;

FIG. 3 is a view showing an example of a screen on which a B-mode image and a composite image are displayed side by side.

FIG. 4 is an exemplary diagram of a screen on which one cursor is displayed on a screen on which a B-mode image and a composite image are displayed side by side.

FIG. 5 is an explanatory diagram of a state in which one cursor is moved on a screen on which a B-mode image and a composite image are displayed side by side.

FIG. 6 is an exemplary view showing a screen in which two cursors are displayed on a screen in which a B-mode image and a composite image are displayed side by side.

FIG. 7 is an explanatory diagram showing a state where two cursors are moved on a screen displaying a B-mode image and a composite image side by side.

FIG. 8 is an exemplary view of a screen on which a B-mode image and a composite image are displayed side by side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 100 Ultrasonic diagnostic apparatus 1 Ultrasonic probe 2 Transmission / reception control part 3 B-mode processing part 4 CFM mode processing part 5 PDI mode processing part 6 Central processing part 6a Cursor display processing 7 CRT 8 Input device 8a Cursor key

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[Procedure amendment]

[Submission date] February 8, 1999

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Name of invention

[Correction method] Change

[Correction contents]

[Title of the Invention] Ultrasound diagnostic apparatus

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Shigeru Inoue 127 GYokogawa Medical System Co., Ltd., 4-7 Asahigaoka, Hino-shi, Tokyo

Claims (2)

[Claims] 1. An ultrasonic image display method for displaying a B-mode image and displaying a composite image in which a B-mode image and a CFM image are superimposed or a composite image in which a B-mode image and a PDI image are superposed side by side, the method comprising: The first cursor and the second cursor are simultaneously displayed, and the first cursor is displayed.
And a second cursor pointing to a position on the composite image corresponding to the position pointed to by the first cursor. 2. A scanning means for scanning the inside of a subject two-dimensionally using an ultrasonic probe, displaying a B-mode image and arranging a B-mode image and a CFM image on a composite image or a B-image. An ultrasonic diagnostic apparatus for displaying a composite image in which a mode image and a PDI image are superimposed, comprising: a cursor display unit for simultaneously displaying two cursors respectively indicating a position on the B-mode image and a corresponding position on the composite image. An ultrasonic diagnostic apparatus, comprising: