JPS60165884A - X-ray television set - Google Patents

Abstract

PURPOSE:To provide an X-ray television set causing no picture recognition error by storing a TV monitor raster angle and scan direction during picture display when said television set stores, sending to the TV monitor a signal showing a scan direction at the time of storage as well as a reproduction picture signal at the time of picture reproduction and automatically setting said signals at the TV monitor raster angle. CONSTITUTION:An operator operates a picture rotating switch 12 while watching a TV monitor 8 to obtain a formal picture of no inclination. A raster angle thus set is sent through a picture rotating circuit 13 to a picture storage circuit 7 and then stored together with an image signal memory of a picture 2a being displayed. To reproduce the picture, a synthesized video signal of the reproduced picture image signal with a signal indicating its scan direction X is sent to the TV monitor 8 from a picture storage circuit 7 and both displayed as mentioned previously, and the signal denoting the pre-stored raster angle is sent to the circuit 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an X-ray television apparatus for providing an easily viewable X-ray transmission image to an operator.

[Technical background of the invention]

X using C-arm M of surgical X-ray television equipment, etc.
In the line device, the KC arm M performs various operations as shown in FIGS. 1 (IL), (1)), and (C)K.

That is, Figure (a) shows the case where the C-arm M rotates on the X-ray device, Figure (b) shows the case where the C-arm M moves up and down, and Figure (l indicates moving in the front-back direction). Each case is shown.

The purpose of this flexible movement of the C-arm M is to cover a wide range of incident angles for the X-rays irradiated to the subject, and there are no particular restrictions on how to use it; You can also perform clairvoyance and photography.

The image on the TV monitor at this time changes depending on the angle of incidence of the C-arm M on the subject, but in the surgical X-ray system, the KC arm M is placed at right angles to the bed DK as shown in Figure 2 (a). At this time, the image in the direction a shown in FIG. 2(b) is positioned at the top of the TV monitor.

Of course, it is also possible to set any direction of s, c, and a shown in FIG. 2(1)) above the TV monitor.

By the way, the image on the TV monitor shows that C-arm M is shown in Figure 6 (
As shown in a), since the person moves to various positions such as 3°C relative to the bed, the incident angle of the C-arm M to the subject RK also changes, resulting in changes as shown in TV model (c). do.

You need to rotate the image so that it looks like this.

Even when using an X-ray television, it is equipped with a scan switching function that changes the starting point of the video signal and reverses it vertically and horizontally, as seen in the undertube.

In addition, in recent years, methods such as this have become popular, in which X-ray images are stored using a recording device and played back at any time during and after surgery for use in reducing radiation exposure and in post-operative diagnosis. In the recording means, there are two methods: a method for storing 6 video signals in a digital format and a method for storing in an analog format, and the storage capacity thereof is 1 to 100 or more in terms of the number of strokes.

A conventional example of an X-ray television apparatus having such a recording means is shown in FIG.

Oni η 11 Oni Go i Drop Elephant Rui 1 Tou Touko Luo X I ♀ Mitsugu , a TV camera having an amplifier, etc.; 5 is an image information storage processing means consisting of a video processor 6 and an image storage circuit 7; 8 is a TV;
The monitor 9 is an X-ray controller.

The X-rays generated by the X-ray tube device 1 pass through the subject 2 and are converted into optical signals by the image intensity 7 eyeer 3, and then converted into electrical signals via the optical system 4 and the TV camera 4b. Further, the video processor 6 converts the signal into a video signal.

This video signal is stored in the image storage circuit 7 and displayed as an image on the TV monitor 8.

The images at this time are shown in Figure 3 (bl, ((Image A shown in 11K).

rotate the image and change the scan direction to make it easier to see.

Furthermore, when attempting to store the corrected image, the image information storage processing means 5 is operated.

[Problems with f-scenery technology]

When reproducing an image using the above-mentioned X-ray television apparatus, the image information storage processing means 5 does not store the rotation direction and scan direction of the image, so the K11i image is independent of the state at the time of storage. As a result, the operator has to move to a position where it is easy to see again, and in the case of images of similar shapes, there is a drawback that the operator may misjudge the top, bottom, left and right of the image.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an X-ray television device that provides a reproduced image that is always easy to see for the operator and that does not cause errors in image recognition. .

[Summary of the invention]

The outline of how to achieve the above purpose is to
The linear transmission signal is converted into an electric signal, and this electric signal is converted into a video signal by the image information storage processing means and stored, and simultaneously displayed as an image of the subject on a TV monitor.
In the X-ray television apparatus, the image information storage processing means stores the rask angle and scan direction of the TV monitor during image display when storing the image, and
The present invention is characterized in that when an image is reproduced, a video signal of the reproduced image and a signal indicating the scan direction at the time of storage are sent to the TV monitor and are automatically set to the rask angle of the TV monitor.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIG. In addition, X-ray equipment 1. Image intensity 7 year 3. The configurations and functions of the optical system 4a, TV right camera b, and X-ray controller 9 are the same as those of the apparatus shown in FIG. 4, so detailed explanation thereof will be omitted.

In FIG. 5, the image information storage processing means 5 of the X-ray television apparatus has a video processor 6 and a TV monitor 8.
A scan changeover switch 10 and a scan changeover circuit 11 that give an instruction to switch the scan direction according to
It includes an image rotation switch 12 and an image rotation circuit 13 for giving an instruction to rotate the image displayed above, and an image storage circuit 7 for storing video signals.

Next, the operation of the X-ray television apparatus having the above configuration will be explained.

If the X-ray tube device IK irradiates X-rays onto the subject 2 and operates the scan changeover switch 10ft while the X-ray tube device IK is in the process of instructing the scan direction X, for example in the left-right direction, this scan direction After being converted into a video signal by the video processor 6, it is combined with the video signal of the subject 2, stored in the image storage circuit 7, and simultaneously sent to the TV monitor 8. As a result, the video signal on the TV monitor 8 is Image 2 of subject 2
a and the scanning direction X are displayed.

The operator operates the image rotation switch 12 while looking at the TV monitor 8, and gives a rask rotation instruction to the TV monitor 8 via the image rotation circuit 13, either to the left or to the right, to obtain a formal image without tilt. .

The rask angle thus set is sent to the image storage circuit 7 via the image rotation circuit 13, and is stored simultaneously with the storage of the video signal of the image 2a being displayed.

When reproducing the above-mentioned image, a composite video signal of the video signal of the reproduced image and the signal indicating the scanning direction At the same time, a signal indicating the pre-stored two-star angle is sent to the image rotation circuit 16. As a result, an instruction to set the same rask angle as when the reproduced image was stored is sent from the image rotation circuit 13 to the TV monitor 8, and the reproduced image is displayed on the TV 72 in exactly the same state as when it was stored.
It will be displayed on 8pm.

In the above-mentioned embodiment, the case where the scanning direction is set to the left and right has been described, but it is of course possible to set the scanning direction to the up and down direction, and it is also possible to set it to the state seen from the back.

The present invention is not limited to the embodiments described above, and various modifications and forms can be made within the scope of the invention.

〔Effect of the invention〕

According to the present invention described in detail above, the image in the most easily viewable state is always displayed on the TV monitor, and the scan direction is also displayed. The invention can provide a fusion device.

[Brief explanation of drawings]

Figures 1 (a) * (b) and (c) are side views showing the moving state of the C-arm of the X-ray television set, and Figure 2 (
a) is a plan view showing the arrangement of the C-arm of the X-ray television apparatus with respect to the bed; FIG. 2 (11) is an explanatory diagram showing the moving direction of the C-arm; and FIG. Plan view showing various arrangement states, Fig. 6 (1)) *
((!L) ((L) is an explanatory diagram showing the state of the image of the subject displayed on the TV monitor, FIG. 4 is a block diagram showing the configuration of the X-ray television device, and FIG. 5 is the diagram of the present invention. It is a block diagram showing an embodiment of the image information storage processing means of the XflJ television/device. 1... X-ray tube device, 2... Subject, 6... Image intensifier, 4a... Optics Series, 4b...
1' V camera, 5... image information storage processing means, 6.
...Video processor, 7...Image storage circuit, 8.-
TV monitor, 9...X, l controller, 10...scan changeover switch, 11...scan changeover circuit, 12.
...Image rotation switch, 16...Image rotation circuit. (C) (b) Figure 4 Figure 5 1'T'"-

Claims (1)

[Claims] The X-ray transmission signal transmitted through the object is converted into an electric signal, and this electric signal is converted into a video signal by an image information storage processing means, which is stored and simultaneously displayed as an image of the object on a TV monitor. In X-ray television equipment: 1. The image information storage processing means stores the two-star angle and scan direction of the TV monitor during image display when storing the image, and transmits a video signal of the reproduced image and a signal indicating the scan direction at the time of storing the image to T when reproducing the image.
5. An X-ray television apparatus characterized in that it is configured to send data to a V monitor and automatically set the 2-star angle of the TV monitor to the rask angle at the time of storage.