JPH04146739A - Ultrasonic diagnostic device - Google Patents

Abstract

PURPOSE:To carry out the M mode diagnosis having different time phase for a same position on a same screen by installing a memory R/W control circuit for synchronizing the M mode image data having different time phase and a display circuit for displaying the M mode image data having different time phase. CONSTITUTION:When the M mode image data 41a and 42a having different time phase are memorized in an image memory 15, the R wave information 41b and 42b of ECG of the M mode image data 41a and 42a are memorized at the same time. When a plurality of M mode image data are regenerated, the time axis (t) of each M mode image data 41a, 42a having different time phase is arbitrarily changed, and after each M mode image regeneration synchronization position is set, the offset time T is calculated by using the pertinent set information by a memory R/W control circuit 14. The offset time is assembled and synchronized in the time direction of each M mode image data 41a, 42a, and the M mode image having different time phase is projected on the same screen of a display circuit 18. Accordingly, also a stop image is displayed on the same screen, together with the M mode image having different time phase.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention is an ultrasonic diagnostic device that transmits and receives ultrasonic waves and displays temporal changes in the motion of internal organs, particularly the heart, in M-mode images. Regarding.

(Prior Art) Conventionally, this type of ultrasonic diagnostic apparatus includes an ultrasonic probe 1, as shown in FIG. A transmitting/receiving circuit that transmits and receives ultrasonic waves 2. A switch changeover means 31, an image memory circuit 41, and a display circuit 5 for displaying images are connected in sequence. The switch switching means 3 includes a first switch 3a that switches the large capacity memory circuit 7 for temporarily storing image data to the transmitting/receiving circuit 2 and the image memory circuit 4, and a first switch 3a that switches between the transmitting/receiving circuit 2 and the large capacity memory circuit 7. It consists of two switches and a switch 3b. As shown in FIG. 7, the two raster data of the two points of interest ml and m2 obtained by the transmitter/receiver circuit 2 during one frame scan in B mode are
Opening/closing operation of the second switch 3b and the first switch 3a
After the images are temporarily stored in the large-capacity memory circuit 7 through the switching operation, they are stored in the image memory circuit 4 and displayed on the same screen of the display circuit 5 as two M mode images.

Furthermore, the two raster data are directly stored in the image memory circuit 4 by switching the first switch 3a, and the two M mode images are displayed on the same side of the display circuit 5. At this time, the same transmitter and receiver 2, large capacity memory circuit 7
The operations of the image memory circuit 4, the switch switching means 3, and the display circuit 5 are controlled by a control circuit (CPU) 6.

(Problem to be Solved by the Invention) However, in the M (-) mode display of the conventional ultrasonic diagnostic apparatus mentioned above, images of different parts of the same part are displayed on the same screen, and for,
For example, the state of the heart valve before and after stress load cannot be displayed on the same screen. For this reason, there was a problem that different time phase M mode diagnosis of the same region could not be performed on the same west face.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide an ultrasonic diagnostic apparatus that can perform different time phase M mode diagnosis of the same site on the same screen.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned objects, the present invention provides an ultrasonic probe, a transmitting/receiving circuit for transmitting and receiving ultrasonic waves, and differences obtained from the above transmitting/receiving circuit. A large-capacity memory circuit for temporarily storing M-mode image data for use in a computer, and a large-capacity memory circuit connected between the transmitting/receiving circuit and the large-capacity memory circuit, and controlling writing and reading of the M-mode image data to and from the large-capacity memory circuit; Alternatively, it is provided with a memory R/W control circuit that synchronizes the M-mode image data for different times, and a display circuit that displays the M-mode image data for different times.

(Function) In the present invention, a memory R/W control circuit is connected between the transmitting/receiving circuit and the large-capacity memory circuit to control writing/reading of image data or to synchronize M mode image data for different times. , various M with different time phases
Writing and reading of mode image data to and from a large-capacity memory circuit is controlled, or synchronization can be achieved between coarse image data at different times. Therefore, a plurality of different time phase M mode images can be obtained on the same screen of the display circuit.

(Embodiment) An embodiment of the ultrasonic diagnostic apparatus of the present invention will be described based on FIGS. 1 to 5.

FIG. 1 shows a block diagram of the device. In the drawings, 11
is an ultrasonic probe. This ultrasonic probe 11 includes an ultrasonic transmitting/receiving circuit 121, a memory R/W control circuit 142 that controls writing and reading of image data, or synchronizes coarse image data at different times, and an image memory circuit 171.
Display circuits 18 for displaying images are sequentially connected. Further, a large capacity memory circuit 15 (hereinafter referred to as image memory) is connected to the memory R/W control circuit 14.The memory R/W control circuit 14, image memory 15, transmitting/receiving circuit 12, and image memory The circuit 17 includes a control circuit (
CPU) 15 is connected.

Next, the operation of the ultrasonic diagnostic apparatus having such a configuration will be described.

First, a plurality of pieces of M-mode image data, for example, two pieces of M-mode image data having different time phases obtained by the transmitting/receiving circuit 12 are temporarily stored in the image memory 15 via the memory R/W control circuit 14. Thereafter, the two M mode image data with different time phases stored in the image memory 15 are stored in the memory R/
The W control circuit 14 reproduces the images under the same reproduction conditions such as reproduction speed, magnification, and gain, and obtains image memory reproduced images 21 and 22. These image memory reproduced images 21 and 22 for different times are stored in the image memory circuit 17 and displayed on the same screen of the display circuit 18 (
(See Figure 2A). In addition, image filed external image data, such as a live image (VTR image) 32, is temporarily stored in the image memory 15, and the memory R/W control circuit 14 reads the image data in the image memory 15 under playback conditions based on the live image 32. The image data is reproduced to obtain an image memory reproduced image 31. Thereafter, the image memory reproduced image 31 and the live image 32 are stored in the image memory circuit 17 and displayed on the same screen of the display circuit 18 (see FIG. 2B). Next, a method for displaying intertemporal mode images in real time will be described with reference to FIGS. 3 to 5. First, when storing M-mode image data 41a and 42a of different temporal phases in the image memory 15, each M-mode image data 41a.

The R branch information 41b and 42b of the ECG of 42a are simultaneously stored (step Sl). Next, when reproducing the M mode image data 41a, 42a, the memory R/W control circuit 14 controls the R branch information 41b, 42b of the ECG.
The offset time T of the M mode image data 41a and 42a is calculated using (step S2). After that, the offset time T is applied to each M mode image data 41a, 4.
Incorporate and synchronize in the time direction of 2a (step S3)
, M mode images of different temporal phases are displayed on the same screen of the display circuit 18 (step S4). Alternatively, when reproducing a plurality of M mode image data 41a, 42a, each different time phase M mode image data 41a +
After arbitrarily changing the time axis t of 42a and setting each M mode image reproduction synchronization position (step S5),
The memory R/W control circuit 14 calculates the offset time T using the setting information (step S6
) Then, the offset time T is incorporated into the time direction of each Mmoto image data 41a, 42a and synchronized (
Step S3), the display circuit 18 displays M mode images of different temporal phases.
on the same screen (step S4).

According to this device, in the above-mentioned inter-temporal M mode image display, a still image is also displayed together with the above-mentioned inter-temporal inter-phase mode image.
displayed on the same screen.

[Effects of the Invention] As explained above, according to the present invention, a memory R/W control circuit for controlling writing and reading of image data to and from the large-capacity memory circuit is connected between the transmitting/receiving circuit and the large-capacity memory circuit. , multiple intertemporal mode images can be displayed on the same screen of the display circuit. Therefore, for example, organs before and after stress loading, organs of a diagnosed patient, and normal organs can be compared and contrasted on the same screen using M-mode images with different time phases, so that the accuracy of diagnosis can be improved. In addition,
The above-mentioned problems can be solved by making diagnosis easier, improving diagnostic efficiency, and shortening diagnosis time.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the device of the present invention, in which FIG. 1 is a block diagram of the device, FIGS. 2, 4, and 5 are diagrams explaining examples of displaying images, FIG. 3 is a flowchart explaining the operation of the device, FIGS. 6 and 7 show conventional examples, FIG. 6 is a block diagram of the device, and FIG.
The figure is a diagram illustrating an example of displaying an image. 11... Ultrasonic probe, 12... Transmission/reception circuit, 14... Memory R/W control circuit, 15...
Large capacity memory circuit (image memory) 16...Control circuit (CPU), 17...Image memory circuit, 18...Display circuit, 19...Operation console, 21.22.31...Image memory Reproduction image, 32.
...Live image (VTR image), T...Offset time, t...Time axis.

Claims (1)

[Claims] an ultrasonic probe, a transmitting/receiving circuit for transmitting and receiving ultrasonic waves, a large-capacity memory circuit for temporarily storing M-mode image data of different temporal phases obtained from the transmitting/receiving circuit, and the transmitting/receiving circuit and the large-capacity memory. a memory R/W control circuit that is connected between circuits and controls writing and reading of the M-mode image data to and from the large-capacity memory circuit, or synchronizes the M-mode image data of different time phases;
An ultrasonic diagnostic apparatus comprising: a display circuit that displays the M-mode image data of different temporal phases.