JP2547940Y2 - X-ray CT panel display - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an X-ray CT panel display device.

[0002]

2. Description of the Related Art In X-ray CT, X-rays are emitted to a subject, X-rays transmitted through the subject are detected, and this is performed over 360 ° to reconstruct an image to generate a tomographic image. , A device to be used for diagnosis.

When an image is obtained by imaging a subject using the X-ray CT, an operation console is used for giving various imaging conditions and instructing the start and end of imaging. Recently, a touch panel system has been used as the operation console, because the operation is easy and the currently set technique (photographing condition) can be clearly indicated by lighting or the like. Its usefulness has been recognized.

[0004] As a method of imaging by X-ray CT, there is a method called "multi-scan" in which a plurality of scans on a plurality of slice planes are performed on one subject. During this multi-scan planning, different techniques are often set for each data acquisition (Acquisition),
The panel does not show the full picture of the different techniques, only the current technique. or,
When the technique of a certain acquisition (hereinafter referred to as AQ) was changed, it was not clear how the technique of another AQ changed.

FIG. 7 shows an example of a conventionally used touch panel display screen. In the figure, reference numeral 1 denotes a panel display screen which displays current operating conditions and operates as an input switch when touched. Reference numeral 2 denotes a scan condition change key, at which the scan condition is currently set or changed and "change completed" is displayed. When the scan condition change key 2 is pressed, a "scan condition change" display appears, and a screen for setting and changing scan conditions is displayed. When this key is pressed after the setting and change of the scan condition are completed, "change completed" is displayed as shown in FIG. 7, and the photographing technique set as shown in the figure is displayed on the panel display screen 1.

Reference numeral 3 denotes a scan time display key, and reference numeral 4 denotes a tube current display key for displaying a tube current of the X-ray tube. By pressing this key, the tube current value can be changed. The X-ray dose can be adjusted by changing the tube current value.

Reference numeral 5 denotes a slice thickness display key indicating a set value of the slice thickness of the tomographic image. Of the display keys shown in the figure, the hatched display indicates that the key is lit,
This indicates that the operation is performed under the conditions of this display.

[0008]

By the way, in the conventional panel display screen 1 shown in FIG.
mA is displayed, and when the X-ray CT is switched on and operated, it is understood that the current setting value of the first AQ is 80 mA, but a different technique setting is performed in the second and subsequent times. I didn't know if I was there.

Further, when the technique is changed, it is not known whether or not this change will affect the settings of other AQs. Therefore, it is uneasy to change the settings on the panel display screen 1. In practice, the settings could not be changed.

As a method of solving this, it is only necessary to display all the techniques in each slice after the second time on the display screen, but this is not possible due to the limited area of the screen.

The present invention has been made in view of the above points, and its purpose is to identify whether different techniques are set without complicating the technique display on the panel display screen. X-ray CT for possible display
To realize the panel display device.

[0012]

According to the present invention, there is provided an input means for inputting data for changing a set value of photographing condition data, and storing photographing condition data inputted based on a photographing plan. A photographing plan database, photographing condition changing means for rewriting data stored in the photographing plan database by changing photographing condition setting values, reading data stored in the photographing plan database, and setting a flag of the data. A display condition setting means for generating and outputting underline data attached to a corresponding display key based on a flag set by the shooting condition display setting means; and displaying a condition and changing a display condition. Display means comprising a touch panel used as input means for It is.

[0013]

When the photographing condition change data is inputted by the input means, the photographing condition changing means rewrites the photographing conditions stored in the photographing plan database. The photographing condition display setting means reads out the data of each AQ from the photographing plan database, sets the data of the photographing condition, and then sets a flag at the position where the data exists. The display control means creates data for underlining the display portion indicating the flagged shooting condition data, and the display means displays the underline on the corresponding display portion.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram of an apparatus according to an embodiment of the present invention. In the figure, reference numeral 11 denotes an input device composed of keys on a touch panel. When the current tube current setting is 40 mA, when it is desired to change the current to 60 mA, the 60 mA key is the input device at that time.

Reference numeral 12 denotes an input receiving device for determining whether or not to receive an interrupt signal such as a photographing condition change command from the input device 11 and determining whether or not to receive the interrupt signal when the interrupt signal is received. is there.

Reference numeral 13 denotes a photographing plan database in which photographing conditions planned in advance are stored as shown in FIG.
The photographing plan database 13 includes other information such as tube voltage,
Although imaging conditions such as slice thickness, slice interval, and scan time are described, they are omitted.

A photographing condition changing device 14 rewrites data stored in the photographing plan database 13 in response to a photographing condition change command input from the input receiving device 12. When photographing is performed at a tube current of 60 mA, when the tube current display key 4 is pressed at 80 mA, the tube current values in the photographing plan database of FIG. 2 are all rewritten one by one to larger tube current values. That is, 60 mA → 80 mA, 80 mA → 10
0 mA, 100 mA → 130 mA.

Reference numeral 15 denotes an input device 11 which outputs data of the changed screen to the display controller 16 when a change command for changing the panel display screen 1 to a screen of another mode is inputted by pressing the scan condition change key 2 in the input device 11. Screen change device.

Reference numeral 17 denotes a display control unit 16 which reads out imaging conditions such as tube current for each AQ from the imaging plan database 13.
To turn on each display key on the panel display screen 1, read out the tube current values of all AQs stored in the imaging plan database 13, and underline the corresponding tube current display key 4. Is a photographing condition display setting device that sets the flag and outputs it to the display control device 16.

Reference numeral 18 denotes a display device for displaying data input from the display control device 16, and displays various touch panel screens in addition to the panel display screen 1. Next, the operation of the embodiment configured as described above will be described with reference to the flowchart of FIG.
This will be described with reference to the panel display screen 1 of FIG. In the apparatus of this embodiment, the shooting plan data is stored in the shooting plan database 13 in another mode in advance, and the display is performed based on this data.

In FIG. 3, (a) is a flowchart of the operation of the present embodiment, (b) is a diagram in which data stored in the photographing plan database 13 used for explanation of the operation is encoded, and (c) is a diagram. FIG. 4 is a diagram showing a configuration of a mA range display flag, showing positions of six tube current values at which flags are set. For example, if a tube current value of 80 mA is stored in the imaging plan database 13, the flag 1 is set at the position of "3".
Is set, and if there is no 40 mA, there is no flag at the position of "1" and it becomes 0.

After the X-ray CT is turned on and data is stored in the imaging plan database 13 in another mode as shown in FIG. 2, the operation of the panel display device of this embodiment is started based on this data. . The same operation is performed when the imaging technique is changed by the input device 11.

Step 1 A tube current mA (1) of AQ1 of the photographing plan database 13 shown in FIG.
Is displayed. In the example of FIG. 7, 80 mA is turned on.

Step 2 The flag [] is cleared. This is an inconvenience when the flag that has been set before remains, so that it is deleted.

Step 3 Let the AQ number of the photographing plan database 13 be i, i = 0
far. AQ numbers are 1 to n.

Step 4 Set i = i + 1. That is, it starts from AQ number 1. Step 5: The photographing condition display setting device 17 stores the photographing plan database 13
, The tube current value corresponding to the AQ number is read, and a flag [mA (i)] is set. That is, mA (i) is 80
If it is mA, set 1 to Bragg 3.

Step 6 It is checked whether i ≧ n. If not, return to step 4. If so, all the AQ1 to AQn have been read and the flags have been set, so the process proceeds to step 7.

Step 7 Since the setting of the flag is completed, the procedure proceeds to the next step, and a procedure is executed in which the tube current display key 4 of the flagged tube current value is underlined. Let mA be j and j = 0. j
Is a number from 1 to 6.

Step 8: j = j + 1 is set. That is, it starts from the mA number 1 of 40 mA. Step 9 It is checked whether the flag [j] in the photographing condition display setting device 17 is set. That is, it is checked whether the flag is set. If not, proceed to step 11. If so, go to step 10.

Step 10 The display control device 16 looks at the flag in the photographing condition display setting device 17 and, if the flag is set, displays the lower part of the number of the display key corresponding to the flag of the tube current display key 4 on the panel display screen 1. Then, data for underlining is created, and the corresponding display key of the display device 18 (the panel display screen 1 in this case) is underlined.

Step 11 It is checked whether j ≧ 6. Otherwise, return to step 8. If j.gtoreq.6, the check is completed for all tube current values, and the process ends.

Panel display screen 1 obtained by the above procedure
Is shown in FIG. That is, the photographing condition database 13 shown in FIG.
Is displayed on the tube current display key 10 of FIG.
The screen is underlined at 0 mA, 80 mA and 100 mA.

In the state where 80 mA in FIG. 4 is lit, 100 mA of the input device 11 (in this case, the tube current display key 10).
When the key is pressed, the input receiving device 12 performs an interrupt process, and inputs a signal to the photographing condition changing device 14 to the effect of changing to 100 mA. The photographing condition changing device 14 rewrites the data of the photographing change plan database 13 from the data of FIG. 2 to the data of FIG.

Based on the data in the photographing plan database 13, the photographing condition display setting device 1 is operated in accordance with the procedure shown in FIG.
7 reads the tube current of each AQ from the imaging plan database 13 to set a flag, and the display control device 16 inputs underline data to be drawn on the display key of the flagged tube current value to the display device 18 to input the underline data to the display device 18 as shown in FIG. The display of the tube current display key 10 on the panel display screen 1 shown in (2) is changed as shown in (2).

As described above, according to this embodiment, in the multi-scan, it becomes clear whether or not the set value of the tube current is other than the currently displayed value, and when the setting of a certain technique is changed. In addition, it became possible to see at a glance how the range of the minimum value and the maximum value of the technique already set by the change was changed.

The present invention is not limited to the above embodiment. In the embodiment, an example is shown in which, when the displayed tube current value is increased by one level, all the set values are increased by one step, but the change can be made only by the changed tube current value. Further, it may be configured by software instead of hardware.

[0037]

[Effects of the Invention] As described in detail above, according to the present invention, the existence of a technique other than the currently displayed technique becomes clear, and when the technique is changed, the range of the technique in other AQs is changed. Changes can be known at a glance, and the practical effect is great.

[Brief description of the drawings]

FIG. 1 is a block diagram of an apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of shooting conditions stored in a shooting plan database according to an embodiment;

FIG. 3 is a flowchart of an operation of the apparatus according to the embodiment.

FIG. 4 is a diagram of a panel display screen according to the embodiment.

FIG. 5 is a diagram showing shooting conditions stored in a shooting plan database changed by changing the shooting conditions.

FIG. 6 is a diagram showing changes in a tube current display key according to the embodiment;
(A) The figure shows that the tube current during the shooting plan is 60 mA to 100 mA.
And (b) shows that the current scan is being performed at a tube current of 80 mA.
It is a figure showing the state changed to mA.

FIG. 7 is a diagram showing an example of a conventional X-ray CT panel display screen.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Panel display screen 4,10 Tube current display key 11 Input device 13 Imaging plan database 14 Imaging condition changing device 16 Display control device 17 Imaging condition display setting device 18 Display device

Claims (1)

(57) [Scope of request for utility model registration] An input unit for inputting data for changing a set value of a photographing condition; a photographing plan database for storing data of a photographing condition inputted based on a photographing plan; A photographing condition changing means (14) for rewriting data stored in the photographing plan database (13) in response to a condition setting value change input; reading data stored in the photographing plan database (13); And a display control means (16) for generating and outputting underline data attached to a corresponding display key based on a flag set by the shooting condition display setting means (17). And display means comprising a touch panel used as input means (11) for displaying conditions and changing display conditions ( X-ray CT which is characterized by comprising 8) and
Panel display device.