JPH0450702Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is an X-ray system that irradiates a subject with X-rays, converts the transmitted X-ray image into visible light, photographs it with a television camera, and displays it on a display device. The present invention relates to an X-ray television apparatus, and particularly to an X-ray television apparatus in which a command can be inputted to control an image displayed on a display screen next to a table on which a subject is placed in an examination room.

[Prior Art] Conventional X-ray television equipment of this type, for example, digital subtraction angiography equipment for performing angiography examinations, uses X-rays that emit X-rays.
A radiation generator, a detector that converts the X-ray image transmitted through the subject lying on the table into visible light, a television camera that converts the output optical image of this detector into a video signal, and a television camera that converts the output optical image of this detector into a video signal. An arithmetic device that converts and inputs digital signals for image processing, a recording device that records this processed image, a display device that converts image data from this recording device into a video signal and displays it, and each of the above components. It consisted of a central processing unit that controlled the elements and a console that input image control commands to the central processing unit.

The layout of an examination room equipped with such an X-ray television system is as shown in Figure 6.
It is divided into an operation room OR and an examination room ER, and the examination room ER is equipped with an X-ray generator 2, a table 4 on which a subject 3 is placed, as well as a detector (not shown), a television camera, etc. and the control room
Inside the OR, a calculation and recording section 5 consisting of a calculation device, a recording device, etc., and an operation console 6 are installed. Then, a doctor 7 who tests and diagnoses the multiple specimen 3
was located in the operation room OR, used the operation console 6 to input image control commands, and made diagnoses by observing the images displayed on the screen of the display device.

However, recently, such X-ray television equipment has been used to insert a catheter into the subject's blood vessels, deliver the catheter to the heart, and inject a contrast agent with high X-ray absorption into the catheter. Testing methods that take pictures of coronary arteries have begun to be used.
In this case, the doctor will also stand next to the table 4 on which the subject 3 is lying in the examination room ER, and the X-ray will be emitted at the same time as the doctor injects the contrast medium. It has become impossible for me to leave. In other words, the doctor could hardly leave the table 4 from the start to the end of the examination.

[Problem that the invention attempts to solve]

However, in such conventional X-ray television equipment, the operation console 6 for inputting image control commands is located in the operation room OR, which is partitioned by lead glass 1. To observe the images, a doctor in the examination room ER looks at the screen of a television monitor (not shown) installed near the table 4, while another doctor 7 or an X-ray technologist in the operation room OR It was necessary to instruct the display of images one by one, select the desired image from among multiple images, and perform appropriate image processing. Therefore, the actual inspection was carried out next to table 4.
There were cases in which the diagnosing doctor was unable to select images at will or perform appropriate image processing.
As a result, examinations and diagnoses by doctors cannot be carried out smoothly, and examination efficiency is reduced. Therefore, the examination time becomes longer and the burden on the subject increases.

Therefore, an object of the present invention is to provide an X-ray television apparatus that can solve these problems.

[Means for solving problems]

In order to solve the above problems, the present invention includes an X-ray generator that emits X-rays, a detector that converts the X-ray image transmitted through a subject placed on a table into visible light, and a a television camera that converts the output optical image of the camera into a video signal; an arithmetic device that converts the video signal into a digital signal and inputs it for image processing; and a recording device that records the processed image.
An X having a display device that converts image data from this recording device into a video signal and displays it, a central processing unit that controls each of the above components, and an operation console that inputs image control commands to this central processing unit. A line television apparatus provided with an operation switch that can be operated near the table and input in parallel to the operation console to control the selection of images to be transferred and displayed from the storage device to the display device. It is.

[Effect]

In the X-ray television apparatus configured in this manner, the operation console is installed in the OR of the operation room, and the operation switch is operable near the table on which the subject is placed in the examination room ER. Then, the image data is read from the recording device, and the selection control of the image to be transferred to the display device and displayed can be performed from both the operation console and the operation switch. This allows the doctor to control the selection of images to be displayed on the display device without having to go to the operation room OR or give instructions to the X-ray technician or other person operating the operation console by switching the operation switch. They will be able to operate it themselves. Therefore, the doctor can quickly display and observe the image he or she desires.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a block diagram showing an embodiment of an X-ray television apparatus according to the present invention. This X-ray television equipment irradiates the subject with X-rays and the transmitted X-rays
X-ray generator 2
, table 4, detector 8, and television camera 9
, an A/D converter 10, an arithmetic unit 11, an image memory 12, a D/A converter 13, a television monitor 14, a central processing unit (CPU) 15, and an operation console 6. There is.

The X-ray generator 2 emits X-rays to the subject 3. The table 4 serves as a platform on which a subject (patient) 3 to be examined is placed. The detector 8 receives the X-ray image transmitted through the subject 3 and converts it into visible light, and is made of, for example, an image intensifier. The television camera 9 photographs the output optical image from the detector 8 and converts it into a video signal. A/D
The converter 10 receives the video signal output from the television camera 9 and converts it into a digital signal. The arithmetic unit 11 receives the digital signal output from the A/D converter 10 and performs appropriate image processing. The plurality of image memories 12, 12, . . . record and read images processed by the arithmetic unit 11, and these image memories 12, 12, . . . constitute a recording device. The D/A converter 13 inputs image data read out from the image memories 12, 12, . . . and converts it into a video signal. The television monitor 14 is connected to the D/A converter 13
The D/A converter 13 and the television monitor 14 constitute a display device 16. The CPU 15 controls each of the above components. The operation console 6 is used to input image control commands to the CPU 15, and is equipped with various control keys, switches, displays, and the like.

In the present invention, an operating switch 17 is provided in parallel with the operating console 6 near the table 4 on which the subject 3 is placed. This operation switch 17 allows the CPU 15 to send the image displayed on the TV monitor 14 of the display device 16 forward or backward, freeze an arbitrary image, or change the window and level of the image display. For example, as shown in FIG. 2, a forward switch 18 for forwarding the image and a backward switch 19 for returning the image to the rear are provided on the top surface of the base. When the advance switch 18 is pressed once in a short period of less than a predetermined time, the displayed image on the television monitor 14 advances by one image, and when the forward switch 18 is kept pressed for a predetermined time or longer, the displayed image advances continuously. go. Also,
When the backward switch 19 is pressed once in a short period of time less than a predetermined time, the display image on the television monitor 14 moves back by one image, and when the switch is kept pressed for a predetermined time or longer, the displayed image moves back continuously. .

An example of the circuit configuration of such an operating switch 17 is shown in FIG. 3 for the advance switch 18. That is, advance switch 1
One terminal 18a of 8 is connected to ground,
The other terminal 18a is connected to, for example, +5V via a resistor R.
and as one image sending signal S ₁
Output to CPU15. At the same time, the signal from the other terminal 18b is input to the clear terminal (CLR) of the counter 20. An oscillator 21 is connected to the clock terminal (CLOCK) of this counter 20.
The clock from
Counts the clock only while 8 is pressed,
When the value exceeds a certain value, the continuous sending signal S ₁ ' is output to the CPU 15 during that period. For example, if the clock of the oscillator 21 is set to 1 clock for 1 second and the value of the counter 20 is set to "2" or more, the continuous feed signal S ₁ ' will be sent by pressing the advance switch 18 for more than 2 seconds. When the advance switch 18 is pressed for less than 2 seconds, a 1-image advance signal is sent.
_S1 will be sent.

On the other hand, the reverse switch 19 is as shown in FIG. This is the same circuit configuration as the forward switch 18 shown in FIG. 3, but the output signal is the one-image return signal _S2 or the continuous return signal.
It is designed to be output to the CPU 15 as S ₂ '.

The layout of the examination room equipped with the X-ray television system configured in this way is as shown in Figure 5.
The operation room OR and the examination room ER are separated by lead glass 1, and the examination room ER contains an X-ray generator 2, a table 4 on which the subject 3 is placed, and a detector and a television camera (not shown). etc., and an operation switch 17 is provided near the table 4. Inside the operation room OR, there is a calculation recording section 5 consisting of a calculation device 11, a recording device, etc., and an operation console 6.
is installed. Then, the doctor 22 who tests and diagnoses the subject 3 inputs an image control command using the operation switch 17 while being located in the examination room ER, and displays the image on the television monitor ( Diagnosis is made by observing the image displayed on the screen (not shown). At this time, the doctor 22 in the examination room ER turns the forward switch 18 or the backward switch 19 of the operation switch 17 shown in FIG.
You want to move the displayed image forward or backward one image at a time by pressing the button twice or for a predetermined amount of time, or you want to move the displayed image forward or backward continuously to view multiple images taken in succession. Images can be searched quickly.

In FIG. 2, the operation switch 17 is shown as having only a forward switch 18 and a backward switch 19 for image retrieval, but the present invention is not limited to this.
In addition, a switch for changing the speed of slow motion display during continuous playback, a switch for freezing an arbitrary image, a switch for changing the window and level of image display, etc. may be provided as necessary. Alternatively, the entire operation switch 17 may be formed as a foot switch and installed on the floor near the table 4 on which the subject 3 is placed. In this case, the doctor 22 in the examination room ER shown in FIG.
However, since the operation switch 17 can be operated with the foot without using sterilized hands, safety and health for the subject can be ensured.

[Effect of idea]

Since the present invention is configured as described above, the operation switch 17 installed near the table 4 on which the subject 3 is placed allows the doctor 2 in the examination room ER to
2 can directly input commands to control the displayed image. Therefore, the doctor 22 who is actually performing the examination and diagnosis beside the table 4 can select images at will.

This allows the doctor 22 to smoothly perform examinations and diagnoses, thereby improving the examination efficiency. Furthermore, since the inspection efficiency is improved as described above, the inspection time is shortened and the burden on the subject 3 can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the X-ray television apparatus according to the present invention, FIG. 2 is a perspective view showing an example of the operation switch, FIG. 3 is a block diagram showing the circuit configuration of the advance switch, and FIG. The figure is a block diagram showing the circuit configuration of the reversing switch, Figure 5 is an explanatory diagram showing the layout of an examination room where the X-ray television system of the present invention is installed, and Figure 6 is a diagram showing the layout of the examination room where the conventional X-ray television system is installed. FIG. 2 is an explanatory diagram showing the arrangement of an examination room. 2... X-ray generator, 3... Subject, 4... Table, 6... Control console, 8... Detector, 9... Television camera, 10... A/D converter, 11... Calculation Device, 12... Image memory (recording device), 15...
... Central processing unit (CPU), 16 ... Display device, 1
7...Operation switch, 18...Advance switch,
19... Reverse switch, OR... Control room, ER...
Examination room.

Claims (1)

[Scope of utility model registration request] An X-ray generator that emits X-rays, a detector that converts the X-ray image transmitted through a subject lying on a table into visible light, and a television camera that converts the output optical image of this detector into a video signal. , an arithmetic device that converts this video signal into a digital signal and inputs it for image processing, a recording device that records this processed image, and a display that converts the image data from this recording device into a video signal and displays it. An X having an apparatus, a central processing unit that controls each of the above-mentioned components, and an operation console that inputs image control commands to the central processing unit.
In the line television apparatus, an operation switch is provided that can be operated near the table and can be input in parallel to the operation console to select and control images to be transferred and displayed from the recording device to the display device. An X-ray television device characterized by: