JPS60207647A - Ultrasonic diagnostic apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention 1] The present invention relates to an ultrasonic diagnostic apparatus, particularly to an image display function.

[Technical background of the invention and its problems] In conventional ultrasonic diagnostic equipment, when comparing data immediately after diagnosis of a subject with past diagnostic data of that subject, it is necessary to compare photographic images of both. In addition to the display device for comparing or recording past data on a VTR and displaying the image of the data immediately after diagnosis, another display device is prepared, and the recorded image is displayed on it. A method is used to compare the two.

However, photographing provides insufficient diagnostic information and is time-consuming and inefficient. Further, providing two display devices has problems in operability, requires space for one display device, and is expensive.

[Object of the Invention] The present invention solves the conventional problems as described above, and provides an ultrasonic diagnostic apparatus having a function of simultaneously displaying an image immediately after diagnosis and an image obtained from a past diagnosis on the screen of one display device. The purpose is to provide.

[Summary of the Invention] The present invention achieves the above object by providing an ultrasonic transceiver circuit that transmits ultrasonic waves to a subject and receives reflected waves, and an ultrasonic wave that is received by the ultrasonic transceiver circuit. An ultrasonic diagnostic apparatus comprising a memory for storing reflected wave data and a display section for displaying an image of the reflected wave data stored in the memory,
an external input circuit for inputting and storing ultrasonic reflected wave data from an external recording means; and an external input circuit for inputting and storing ultrasonic reflected wave data from an external recording means, and alternately transmitting the ultrasonic reflected wave data stored in this external input circuit and the reflected wave data stored in the memory to the display section. The ultrasonic diagnostic apparatus is characterized in that it includes a switching circuit for transmitting data, and simultaneously displays an ultrasonic image based on external data and an ultrasonic image based on data stored in the memory on the display section.

[Embodiment of the Invention] An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a block diagram of this embodiment.

Ultrasonic reflected wave data is obtained by an ultrasonic transceiver circuit 1 that transmits an ultrasonic beam to the subject A and receives reflected waves. This reflected wave data is digitized by the [Delta]/1] converter 4 and stored in the memory 6. On the other hand, VTR,
Past ultrasound reflected wave data of the subject Δ, which is recorded on a Vit1 disc or the like, is inputted to a component detection circuit 2, digitized by an A/D converter 3, and stored in a memory 5. And the switching circuit 7
The reflected wave data stored in this memory 5 and the reflected wave data stored in the memory 6 are read out alternately and converted into analog by a D/A converter 9, and then displayed as an image on a display device 10.

Thereby, images immediately after diagnosis and past images as shown in FIGS. 2(a) and 2(b) can be displayed simultaneously on one screen. Note that FIG. 2(a) shows an example of display using the linear scan method, and FIG. 2(b) shows an example of display using the sector scan method. Further, the system timing of this device is controlled by a synchronization circuit 8, and when past data is not input from the outside, this synchronization circuit 8 controls the read timing of the memory 6 and the switching circuit 7.
The display device 10 displays only images immediately after diagnosis. The reading is preferably performed in television format (the memory 5.6 uses a digital scan=1 inverter).

[Advantageous Effects of the Invention 1] According to the present invention, an ultrasonic diagnostic image immediately after diagnosis of a subject and a past diagnostic image can be displayed simultaneously on the same display device. This has the effect that there is no need to prepare a space for this purpose.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a diagram showing an example of image display according to this embodiment. 1... Ultrasonic wave transmitting/receiving circuit 2...
...Echo component detection circuit 3.4...A
/D converter 5.6...Memory 7...Switching circuit 8...
... Synchronous circuit 10 ... Display device

Claims (1)

[Claims] An ultrasonic transceiver circuit that transmits ultrasonic waves to a subject and receives reflected waves; a memory that stores data on the reflected waves received by the ultrasonic transceiver circuit; The ultrasonic diagnostic apparatus includes a display unit that displays reflected wave data as an image, and includes an external input circuit that inputs and stores ultrasonic reflected wave data from an external recording means, and an external input circuit that inputs and stores ultrasonic reflected wave data from an external recording means. a switching circuit that alternately sends wave data and reflected wave data stored in the memory to the display section, and simultaneously displays an ultrasound image based on external data and an ultrasound image based on the data stored in the memory on the display section. An ultrasonic diagnostic device characterized by: