JPS58152553A - Ultrasonic tomography 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 The present invention relates to an improvement in the display mechanism of an ultrasonic tomography apparatus having a digital scan converter and a television monitor.

Currently, in ultrasonic tomography devices, post-processing is used to clarify the differences in tissue of the lesion in the recorded and displayed ultrasound images, but it is not yet clinically effective. No results have been obtained. In addition, in order to detect the difference between images with and without post-processing processing, or between two images that have undergone different post-processing processing, it is necessary to use at least two recorded photographs. Can't compare.

In addition, in the case of television displays that are not documentary photographs, the screen that has undergone post-processing processing such as gamma correction is displayed in a single display, and the screen that has not undergone processing processing is not displayed on the same screen at the same time, making comparisons impossible. there were.

SUMMARY OF THE INVENTION An object of the present invention is to provide an ultrasonic tomography apparatus that can simultaneously display the same image on two separate screens, each displaying a different image with different post-processing.

A feature of the present invention is that it includes means for displaying different post-processed images on each half of the screen on the same display screen.

Hereinafter, the present invention will be described in detail along with examples.

FIG. 1 is a diagram showing a general configuration of the present invention, in which 1 is an ultrasound probe, 2 is an ultrasound transmitting/receiving section, 6 is a digital scan converter section, and 4 is a display device such as a television monitor. .

FIG. 2 is a diagram showing a specific configuration of the digital scan comparator section of FIG. 1. In the figure, 301 is an analog-to-digital converter that converts the video signal from the ultrasonic transmitter/receiver 2 into a digital signal, 302 is a writing sampling bar, and the output signal is passed through a serial-parallel converter 306A. Stored in image memory. The writing sampling buffer memory 3.3A operates in synchronization with the transmission and reception of ultrasonic waves, and the readout signal from the image memory and the parallel-to-serial converter 606B are synchronized with the scanning synchronization signal of the display device 4 such as a television monitor. It operates at synchronous timing. 306A is a serial-parallel converter,
303Bld parallel-serial converter, 604 is an image memory, 605 is an image memory control circuit, 606 is a timing control circuit, 307 is a switch for selecting whether to use the first post-processing image or the second post-processing image. A switch, 608A is a first post-processing circuit that performs r correction, etc., 308B is a second post-processing circuit, 309 is a mixer, 61
0 is a digital to analog converter.

Next, the operation of this embodiment will be explained.

In FIGS. 1 and 2, ultrasonic waves emitted from an ultrasonic probe 1 are reflected by a subject, and the reflected ultrasonic waves are received by an ultrasonic transmitter/receiver 2 and output as a video signal. This video signal is sent to an analog-to-digital converter 301
The signal is converted into a digital signal and input to the serial/parallel converter 3''03A through the writing sampling buffer memory 302.The output of this/real parallel converter 606A is written to the image memory 604 at a predetermined timing. When reading the contents stored in the image memory 604, the number of Y scanning lines corresponding to half of the display screen of the display device 4 such as a television monitor is calculated, and when this predetermined number is reached, the first post is read out. From the processing circuit 308A side to the second post-processing circuit 308B (ItltC switch t, switch L
It is read out at a predetermined sampling timing through the parallel comparator JA06A and the parallel/serial converter 303B. In this way, the content data of the image memory 304 that has been read out is sequentially converted into image data that has been subjected to a first post-processing process, e.g.
0, and the γ1-corrected image is displayed on the left half of the screen of the display device 4, such as a television monitor, as shown in FIG. Similarly, when switched to the second post-processing circuit 608B,
The contents stored in the image memory 604 are
The data on the right half of the screen of the display device 4, such as a television monitor, which is read out at a predetermined sampling timing through the serial converter 306B, is sequentially converted into image data that has been subjected to second post-processing processing, for example, γ-corrected image data. The signal is sent to the mixer 309 and converted into an analog signal by the digital-to-analog converter 610, and as shown in FIG. be done.

In addition, when the image is not subjected to post-processing processing,
The first or second post-processing circuit may be configured as a short-circuit circuit.

It is also possible to divide the same display screen into three or more parts and display different boss processing images on each part. Furthermore, the same can be said of the briprocessing process in which images are switched to the left and right before being written to the image memory.

As described above, according to the present invention, the same image is simultaneously displayed on two separate screens of different post-processed images, making it possible to compare and inspect images that have undergone post-processing processing.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a schematic configuration of an embodiment of the present invention, and FIG.
1 is a diagram showing a specific configuration of the scan converter shown in FIG. 1, and FIG. 3 is a diagram showing a screen of a display device such as a television monitor according to the present embodiment. 1 Ultrasonic probe 2 Ultrasonic transmitting/receiving section 6 Scan converter section 4 Display device 601 Analog-to-digital converter 302 Writing sampling bar, buffer 7 memory 303
A Parallel converter 603B Parallel converter 604 Image memory 305 Image memory control circuit 606 Timing control circuit 607 Selector switch 308A First processing circuit 3o8B-
[2 Post processing circuit 309/Mixer 610 Digital/Analog converter Representative Patent attorney Aki 1) Shu Ki

Claims (1)

[Claims] An ultrasonic tomography apparatus having a digital scan converter and a television monitor, comprising means for displaying different post-processed images on each half of the screen on the same display screen.