JPH08182670A - Digital radiography device - Google Patents

Abstract

PURPOSE: To improve the diagnosis efficiency by confirming desired image data quickly and accurately thereby lessening the retrieval time. CONSTITUTION: After start of irradiation, image data are recorded in an image memory 12, and at the same time with this, image data applicable to the condition being set beforehand is set as an index image. After finish of irradiation, the index image is recorded in the index area 12 of the image memory 12. When an index display command is issued from a console, the index is displayed on a television monitor 14, and a desired image is displayed, being selected from among this. Hereby, the desired image can be selected from the image displayed in parts, so the retrieval time can be shortened, and the diagnosis efficiency can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital radiography apparatus for digitally processing an X-ray image, and more particularly to a digital radiography apparatus suitable for selecting stored image data.

[0002]

2. Description of the Related Art A conventional digital radiography apparatus is
An X-ray tube that irradiates the subject with X-rays, an image intensifier that converts the transmitted X-rays of the subject into an optical image of visible light, a television camera that captures an output optical image of the image intensifier, and a television The A / D converter that digitizes the output signal from the camera, the arithmetic unit that performs various image processing on the image data, and the image data from the A / D converter or the image data from the arithmetic unit are temporarily An image memory for storing, a monitor for displaying the image data stored in the image memory as an image, a magnetic disk for permanently storing the image data stored in the image memory, and a microcomputer for controlling each of these components. , And a console for giving various commands to this microcomputer.

Further, in the digital radiography device,
At least 10 to 20 image data are obtained with one X-ray irradiation, and 300 to 400 images for head and heart imaging,
When there are many images, nearly 900 image data are obtained. Then, this X-ray irradiation is repeated several times, and the imaging of one subject is completed.

The image data thus obtained is X
After the line irradiation is finished, it is temporarily stored in the image memory, and this is repeated. And when displaying the image on the monitor,
Issue a display command on the operator's console to display a list of irradiation date and number of images. When a desired one is selected from this list, the image data for one irradiation is read out and the first image is displayed on the monitor. Further, when the contents temporarily stored in the image memory are to be stored, when a storage command to the magnetic disk is issued from the console, the contents are transferred from the image memory to the magnetic disk.

Next, when observing the image data in the magnetic disk, a list is displayed on the monitor when a display command for the magnetic disk is issued from the console, and when the desired one is selected on the console, the corresponding image is displayed. Displayed on the monitor. The first image of the selected image data is displayed as the displayed image.

[0006]

In the above-mentioned conventional apparatus, when a plurality of subjects are continuously photographed, the number of image data at the end of the photographing of all the subjects is from several hundred to several thousand. The amount was enormous, and sometimes the contents could not be understood just by looking at the subject list. Further, in order to determine where the desired image is stored, the method of displaying the actual image is used for checking, so that it takes a long time to search the image data, and the diagnosis efficiency is deteriorated.

Therefore, an object of the present invention is to quickly and accurately confirm desired image data, reduce the search time, and improve the diagnostic efficiency.

[0008]

In order to achieve the above object, the present invention provides an X-ray tube for irradiating a subject with X-rays, and a transmitted X-ray of the subject which is arranged to face the X-ray tube. Detector that converts light into visible light, a television camera that captures the output optical image of this detector, an A / D converter that digitizes the output signal from this television camera, and various image processing for image data And an image temporary storage device for temporarily storing the image data from the A / D converter or the image data from the arithmetic unit, and the image data stored in the image temporary storage device as an image. An image display device for displaying, an external storage device for permanently storing the image data stored in the image temporary storage device, a control device for controlling each of these components, and an operation for giving various commands to the control device. Equipped with a desk In a digital radiography device, an area dedicated to split display is allocated to the image temporary storage device, and the image data is stored in the image temporary storage device, and at the same time, image data corresponding to a preset condition is displayed as image data for split display. And a means for storing the divided display image data in the divided display area.

[0009]

When the irradiation is started, the image data is recorded in the image temporary storage device, and at the same time, the image data corresponding to the preset condition is set as the image data for divided display.
When the irradiation is finished, the divided display image data is recorded in the divided display area of the image temporary storage device. Then, when a split display command is issued from the operator console, the image data is read from the split display area and a plurality of split display image data is displayed. If a desired image is selected from among these, the image data for one irradiation is displayed. It is read from the temporary storage device and displayed.

As a result, a desired image can be selected from the divided and displayed images, so that the retrieval time can be shortened and the diagnostic efficiency can be improved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 is a block diagram showing the configuration of the present invention, FIG. 2 is a flow chart showing the operation of image index display performed in association with a shooting operation, FIG. 3 is a view showing the index area and index display in FIG. 2, and FIG. 4 is a magnetic disk. FIG. 5 is a flowchart showing the operation of displaying an image index in the image data of FIG. First, the configuration of the digital radiography device will be described. The X-rays emitted from the X-ray tube 5 are
The light passes through the subject 6, is converted into an optical image by the image intensifier 7, and is distributed to the television camera 9 by the distributor 8.

The output signal of the TV camera 9 is amplified and adjusted by the TV camera controller 10, and the A / D converter 11 is used.
Is converted into a digital signal and stored in the image memory 12. An arbitrary image among the stored images is stored in the index area 12a provided in the image memory 12. When an index display command is issued from the console 2, it is controlled via the index display controller 1a of the microcomputer 1 to display an index, and when an image is selected from this, the image in the image memory 12 is displayed by the image processor 13. Is subjected to image processing and is displayed on the television monitor 14. In addition, when storing the image in the image memory 12, the magnetic disk 1
Store in 5. These operations are controlled by the microcomputer 1 and the index display controller 1a which have received a command from the console 2.

Next, the image index display in this embodiment will be described with reference to FIGS. 2, 3, 4 and 5. First, the operation of the image index display that is performed during shooting will be described with reference to FIGS. In order to first set the image to be displayed as an index, the operator sets the conditions for index display on the console 2 (step 101). For example, an image (third image shown in FIG. 3 in this embodiment) after several seconds have elapsed from the start of X-ray irradiation, that is, the start of recording in the image memory 12, is set as an index image.

When the X-ray irradiation is completed, the index image set in step 101 is stored in the image memory 12
Are stored in the index area 12a (step 1
02). This index area 12a is divided so that a normal one-screen area can store a plurality of images. For example, when the index area 12a is divided into 9 areas as shown in FIG. Index images are sequentially stored in the area. Also, the index is 4, 9,
When 16 divisions can be selected, 16 divisions is 1 so that a maximum of 16 images can be stored, as shown in FIG.
, 9 divisions secure 2 areas, 4 divisions secure 4 areas, X
After completion of the line irradiation, the areas are divided into 4, 9, and 16 areas and stored from the beginning.

When an index display command is issued from the console 2 when the X-ray irradiation is repeated several times and one photographing is completed, the index image is read from the index area 12a and displayed (step 103). For example, in FIG.
An index screen of nine images is displayed on the television monitor 14 as shown in (a).

When selecting from the index screen, select the desired image on the console 2 (step 10
4) The image is displayed on the television monitor 14 (step 105). As shown in FIG. 3, the selected image (the third image at the time of the second irradiation) is displayed on the television monitor 14, and when the operator wants to see another image, he / she can perform a page feed or the like on the console 2. Images from the second irradiation can be displayed one after another.

When the capacity of the image memory 12 is insufficient, the data in the image memory 12 is stored in the magnetic disk 15.
Transfer to At this time, the index image in the index area 12a corresponds to the image memory 12, and when there is no image data in the image memory 12, the index image also disappears from the index area 12a.

Next, the image index display in the image data of the magnetic disk will be described with reference to FIGS. 4 and 5. First, in order to transfer an image from the magnetic disk 15 to the image memory 12, a list of contents of the magnetic disk 15 is displayed (step 201). The list at this time is
Information such as the subject name and date is displayed.

From the list, some desired image data of the subject are selected by the console 2 (step 2).
02). Then, the selected image data is stored in the image memory 12 (step 203). Then, it is checked whether or not there is an indexed image in each object data (step 204).

If there is an index image, the index image is stored in the index area 12a (step 205). Then, when an index display command is issued from the console 2, the index is displayed on the television monitor 14 (step 206), and when a desired image is selected from this (step 207), the image is displayed on the television monitor 14. (Step 208).

If there is no index image,
From the list of the magnetic disks 15, those without an index setting are selected (step 209). Then, the selected image data is displayed on the television monitor 14 (step 210). Then, an operation such as page turning is performed on the console 2 to search for an image to be indexed and set (step 211). When this setting is completed, the index image is stored in the index area 12a in the same manner as described above, and when the index display command is issued from the console 2, the index is displayed on the television monitor 14 and the desired image is selected from among them. The image is displayed on the television monitor 14.

As described above, the image memory 12 is provided with the index area 12a, in which the image corresponding to the index condition is stored for each irradiation, and the desired image is selected from the index images displayed on the television monitor 14 at the time of image retrieval. You can quickly search for images by selecting. This eliminates the need to check each search image,
The search time of the operator is shortened and the diagnosis efficiency is improved.

Further, since it is possible to set an index to an arbitrary image even for an image that has been photographed in the past and has not been indexed, many past images stored in the magnetic disk 15 or the like are used. You can search smoothly even in the case.

[0024]

According to the present invention, it is possible to store image data for divided display corresponding to preset conditions in the divided display area of the image temporary storage device for each irradiation and display it. As a result, a desired image can be selected simply by looking at the image data that is divided and displayed, and the operator can perform a quick and accurate search and improve the diagnostic efficiency.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of the present invention.

FIG. 2 is a flowchart showing an image index display operation performed in association with a shooting operation.

FIG. 3 is a diagram showing an index area and an index display in FIG.

FIG. 4 is a flowchart showing an operation of displaying an image index in image data of a magnetic disk.

FIG. 5 is a diagram showing an index display in FIG.

[Explanation of symbols]

 1 Microcomputer 1a Index display controller 2 Operator table 3 X-ray controller 4 High voltage generator 5 X-ray tube 6 Subject 7 Image intensifier 8 Distributor 9 Television camera 10 Television camera controller 11 A / D converter 12 Image Memory 12a Index area 13 Image processor 14 TV monitor 15 Magnetic disk

Claims (1)

[Claims] 1. An X-ray tube that irradiates an object with X-rays, a detector that is arranged facing the X-ray tube and that converts the transmitted X-rays of the object into visible light, and the output of this detector. A television camera that captures an optical image, an A / D converter that digitizes an output signal from the television camera, an arithmetic unit that performs various image processes on image data, and an image from the A / D converter Data or an image temporary storage device that temporarily stores the image data from the arithmetic unit, an image display device that displays the image data stored in the image temporary storage device as an image, and an image temporary storage device that stores the image data. In the digital radiography device having an external storage device that permanently stores the image data, a control device that controls each of these components, and a console that gives various commands to the control device, A device for allocating an area dedicated to split display to the device, storing the image data in the image temporary storage device, and at the same time setting image data corresponding to a preset condition as image data for split display, and image data for split display. A digital radiography device, comprising: a split display unit having a unit for storing in the split display area.