JPH07275230A - Anatomical program operation and device therefor - Google Patents

Abstract

PURPOSE:To set rapidly multiple photographic conditions for an X-ray photographic device by inputting information with an operation type/position selection key, a lateral orientation selection key and a ten-key pad, then establishing photographic conditions stored in a photographic-condition memory by pressing an enter key and displaying them in a display portion. CONSTITUTION:Selection of an operation type and a position is made by the use of an operation type/position selection key 20 and so the selection information is posted to CPU 50. Then, by pressing a lateral orientation selection key 23, the selection information is transmitted to CPU 50. Then, a subject thickness is inputted from the ten-key pad 21, so that the selection information is transmitted to CPU 50 via a bus 43. So, in CPU 50, a check is made on whether there is error in the data thus far inputted, or not. Then, in CPU 50, the subject thickness inputted is displayed in a subject thickness display portion. Thus, via this display, it is confirmed by an operator that there is no error in the setting and so the enter key 24 is pressed and, in CPU 50, access to a photographic-condition memory 51 is made, and photographic conditions are read and they are displayed in a display portion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anatomical program operation and apparatus, and more particularly to an anatomical program operation system capable of rapidly setting many imaging conditions of an X-ray imaging apparatus.

[0002]

2. Description of the Related Art In recent years, X-ray imaging apparatuses are controlled by a microcomputer, and there are many apparatuses capable of storing imaging conditions. Usually, such condition memory is called anatomical program memory (anatomical imaging condition memory),
Conventionally, there are roughly two types, a matrix selection method and a page turning selection method. The shooting conditions to be stored are tube voltage, tube current, shooting time, tube current / shooting time product (mAs), shooting distance, presence / absence of grid, intensifying screen, film, shooting site, surgical method, subject There is thickness etc. The tube current / imaging time product (mAs) is a guide for determining the exposure dose, and corresponds to the exposure amount of the camera. The operative method is a type of imaging method, and includes, for example, general imaging, Bucky imaging, tomography, and fluoroscopic imaging. The bucky shooting is to shake the bucky by using a bucky table, a bucky stand, or the like so that the film does not have a striped pattern. The tomographic image is obtained by obtaining a cross-sectional view of the subject portion of the subject. Fluoroscopic imaging is such that the subject image is displayed on the display unit in real time.

FIG. 8 is an explanatory diagram of tube voltage and tube current. In the figure, reference numeral 1 denotes an X-ray tube, which is a bipolar tube including an anode 2 and a cathode 3. Reference numeral 4 is a high-voltage power supply for applying a high voltage to the X-ray tube 1, and 5 is an ammeter connected in series to a power supply circuit. At this time, the voltage applied to the X-ray tube 1 is the tube voltage, and the current flowing in the circuit is the tube current. When high voltage is applied to the anode 2 and the cathode 3, electrons e are emitted from the cathode 3 toward the anode 2. The surface of the anode 2 is made of a substance that generates X-rays (e.g., tungsten), and the electrons e collide with each other to generate X-rays as shown in the figure.

FIG. 9 is an explanatory diagram of a grid and an intensifying screen.
A grid 8 is provided between the subject 6 and the film 7. This grid 8 is made up of a vertical grating and functions to absorb diffusely reflected X-rays. As a result, only transmitted X-rays that do not include diffusely reflected X-rays are incident on the film 7, and an image without fog is exposed. Reference numeral 9 is an intensifying screen provided on both sides of the film 7 so that a clear image can be obtained even with a small amount of X-rays.

Next, the matrix selection method and the page turning selection method will be described. FIG. 10 is an operation explanatory diagram of the matrix selection method. As shown in the figure, for example, the subject thickness selection keys 10 are arranged in the vertical direction and the imaging region selection keys 11 are arranged in the horizontal direction. In the figure, the subject thickness selection key 10 is A
1 to A4, the shooting condition selection key 11 is B1 to B
It is made of 6 pieces up to 6. Reference numeral 12 denotes a shooting condition storage unit that stores shooting conditions selected by these selection keys.
In the figure, the matrices M11 to M46 are addresses in which respective shooting conditions are stored, and 24 shooting conditions are stored.

The selection of the photographing condition is such that the condition stored in the address of the intersection of these keys can be called by pressing one of the vertical keys and one of the horizontal keys. In the case of the drawing, the shooting condition stored at the address M25 (the hatched portion in the drawing) at the intersection of the A2 key and the B5 key is called.

On the other hand, in the page-turning selection method, shooting conditions such as a part, a surgical method, and a subject thickness are displayed on the display section in a numbered manner. Then, a page break or scroll is performed to display the imaging conditions, and a desired site / operative method, subject thickness, etc. are set by a cursor or the like.

[0008]

In the case of the matrix selection method described above, the number of shooting conditions that can be stored is determined by the number of vertical keys × the number of horizontal keys, and is usually several tens. Of course, the number of memories can be increased by increasing the number of keys in the vertical and horizontal directions, but this is not realistic. Therefore, as shown in FIG. 11, it is conceivable to use a liquid crystal touch panel in a matrix corresponding to the storage unit shown in FIG. In this method, for example, a matrix of desired shooting conditions (for example, M2
By pressing (touching) 5), the shooting conditions stored in the area are immediately read out.
According to this method, shooting conditions corresponding to the number of matrices can be stored, and if this screen is switched, the storage capacity is increased by the number of switching screens. However, at present, the touch panel type keys are still expensive.

The present invention has been made in view of the above problems, and provides an anatomical program operating method and apparatus capable of promptly setting a number of imaging conditions of an X-ray imaging apparatus. It is an object.

[0010]

According to the present invention for solving the above-mentioned problems, a technique / region selection key for selecting a technique and a region, a side direction selection key for selecting a side direction, and a subject thickness are set. A numeric keypad for inputting, an enter key for confirming shooting conditions, a display section for displaying various information, and a shooting condition storage memory in which a plurality of shooting conditions determined by the input operation are stored, By pressing the enter key after inputting information with the key and numeric keypad, the shooting conditions stored in the shooting condition storage memory are confirmed, and the confirmed shooting conditions are displayed on the display unit. It has a feature.

[0011]

By inputting the respective ranks for each type of photographing conditions (for example, operative method / region, subject thickness, etc.), the storage number of the photographing condition storage memory is determined. Imaging conditions (tube voltage, tube current, imaging time) corresponding to the memory numbers are stored in the imaging condition storage memory, and these imaging conditions are read out and displayed on the display unit. According to the present invention, a key is provided for each type of shooting condition, and the number of memory is determined by multiplying the number of these keys. Therefore, it becomes possible to store a large number of shooting conditions. Moreover, since the operation can be performed by key input using the operation panel, it can be performed promptly.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a configuration block diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing an example of the outer shape of an operation panel of the present invention. First, the operation panel of FIG. 2 will be described. In the figure, reference numeral 20 is a technique / region selection key, which is composed of six keys T1 to T6 in the figure. The technique / region selection key 20 can be used to select a technique and a region. For example, as shown in FIG. 3, T1 to T3 are for general photographing, T4 to
Allocate T6 for Bucky shooting. Then, T1 is a chest, T2 is an arm, and T3 is a leg. An imaging region can be assigned such that T4 is the abdomen, T5 is the head, and T6 is the lumbar spine imaging. It is assumed that the allocation of the operative method and the allocation of the imaged part are previously set by a setting means (not shown).

Referring again to FIG. 2, numeral 21 is a ten-key pad from 0 to 9, which is used for inputting the object thickness. 22 is a write key used when writing data in the memory, 23 is a side direction selection key for deciding whether or not the side direction is selected, 2
Reference numeral 4 is an enter key for entering (determining) the data set on the operation panel inside the apparatus, and 25 is a clear key for clearing the set data. Side direction selection key 23
The side direction can be selected by pressing this key. The clear key 25 is used to clear the previous settings when the settings are incorrect. 31 to 34 are display units for displaying various information, 31 is a subject thickness display unit,
Reference numeral 32 is a tube voltage display portion, 33 is a tube current display portion, and 34 is a photographing time display portion.

According to the operation panel having such a structure, the subject thickness is 40 for each operative method from 1 cm to 40 cm.
A total of 80 points can be selected from 40 points and 40 points by selecting the lateral direction, and the shooting conditions of a total of 480 points can be stored and read out by 6 types of operative methods. Note that this is merely an example, and the number of keys on the operation panel is not limited to this. Therefore, the number of shooting conditions is not limited to 480 points.

Next, the configuration of FIG. 1 will be described. Figure 2
The same parts as those shown in FIG. In the figure, reference numeral 40 denotes the operation panel described with reference to FIG. 2, which is composed of a technique / region selection key 20, a numeric keypad 21, a side direction selection key 23, an enter key 24, a display unit 30, and the like. The display unit 30 includes a subject thickness display unit 31 and a tube voltage display unit 3 shown in FIG.
2, a tube current display section 33, a photographing time display section 34 and the like.

Reference numeral 41 is an encoder that detects when any one of the surgical operation / site selection keys 20 is pressed, and 42 is an encoder that detects that any one of the ten keys 21 is pressed. Reference numeral 43 is a bus, and 50 is a CPU for various controls connected to the bus 43. The outputs of the encoders 41 and 42 are notified to the CPU 50 via the bus 43. Also,
The outputs of the side direction selection key 23 and the enter key 24 are directly given to the CPU 50.

Reference numeral 51 designates a memory number which is determined by inputting various shooting conditions by the operation unit 40, and a shooting condition memory which stores various shooting conditions (tube voltage, tube current, shooting time) corresponding to the memory number. It is a memory. An X-ray imaging apparatus 60 includes a programmable high-voltage power supply 61, a program current setting unit 62, and a program time setting unit 63. These programmable high-voltage power supply 61, program current setting unit 62, and program time setting unit 63
Is controlled by the CPU 50. The operation of the apparatus configured as described above will be described below.

FIG. 4 is a flow chart showing the overall operation of the device of the present invention. First, input / output processing is performed using the operation panel 40 (S1). For example, the operation / site selection key 2
0 is used to select an imaging region for each surgical method divided as shown in FIG. Next, the object thickness is input using the ten keys 21. If necessary, the lateral azimuth selection key 23 is used to key in the lateral azimuth surgical operation / site. The input data is notified to the CPU 50.

When the input / output processing is completed, enter key 2
4 is pressed to notify the CPU 50 that the input operation is confirmed (S2). When the CPU 50 detects that the enter key 24 has been pressed, the CPU 50 determines the address (memory number) of the imaging condition storage memory 51 from the data of the surgical site selection, the subject thickness, and the side orientation selection, and the area corresponding to the storage number. The image capturing condition data stored in (3) is displayed on the display units 31 to 34 (S3).

Next, the CPU 50 sets the determined photographing conditions (tube voltage, tube current, photographing time) in the high voltage power supply 61, the current setting section 62, and the time setting section 63 of the X-ray photographing apparatus 60 (S4 to S6). ). The high-voltage power supply 61, the current setting unit 62, and the time setting unit 63 are programmable, and their output value or time can be set from the outside. In this way, shooting is performed under shooting conditions most suitable for the state of the subject. According to the present invention, a key is provided for each type of photographing condition, and the number of memory is determined by multiplying the number of these keys. Therefore, it becomes possible to store a large number of shooting conditions. Moreover, since the operation can be performed by key input using the operation panel, it can be performed promptly.

FIG. 5 is a flow chart showing an example of the photographing condition setting operation of the present invention. First, the technique / part selection key 20
The surgical technique and site are selected by using (S1). For example,
By pressing T1 of the general imaging area key in FIG. 3, the imaging region "chest" is selected. This selection information is sent to C via the bus 43.
The PU 50 is notified. Next, when photographing the lateral direction, the lateral direction selection key 23 is pressed (S2). It is not necessary to press the button when the lateral view is not taken. This selection information is
The CPU 50 is directly notified.

Next, the subject thickness is input from the ten keys 21 (S3). For example, enter "20". This selection information is notified to the CPU 50 via the bus 43. Next, the CPU 50 checks whether or not the data input so far has an error (S4). For example, if the object thickness is up to 40 cm and "50" is entered, an error occurs. If there is an error, the display on the display unit 30 is cleared (S5) and the subject thickness is re-input.

The CPU 50 displays the input subject thickness on the subject thickness display section 31 (S6). When the operator sees this display and confirms that the settings are correct, he / she presses the enter key 24 (S7). This information is CPU50
Is notified, and the CPU 50 checks whether or not there is an error in the data input so far (S8). If there is an error, the display is cleared (S5), and then the subject thickness is input again.

If there is no error, the CPU 50 accesses the photographing condition storage memory 51 and reads the photographing condition stored in the memory number determined by the input operation up to that point. FIG. 6 is a diagram showing a configuration example of the photographing condition storage memory 51. In the figure, the memory number is a number determined by the input operation, and when the operation panel 40 shown in FIG. 2 is used, there are 480 stored numbers. Correspondingly, there are 480 memory numbers. At each memory number, the tube voltage [kV] and the tube current [m] corresponding to each number are stored.
A] and shooting time [Sec] are stored. For example,
At the memory number 4, the tube voltage V4 [kV], the tube current A4 [mA], and the photographing time T4 [Sec] are stored. These photographing condition data are read by the CPU 50 and displayed on the respective display units 32 to 34 (S
9).

Next, the CPU 50 sets the conditions of the X-ray imaging apparatus 60 in order to realize the displayed imaging conditions (S10). That is, the output voltage (tube voltage) is set in the high voltage power supply 61, the tube current is set in the current setting section 62, and the photographing time is set in the time setting section 63. X-ray imaging apparatus 60
Irradiates a subject (not shown) with X-rays under the set conditions.

In the above-described embodiment, the case where the subject thickness is input by the ten-key is taken as an example. However, the present invention is not limited to this, and as shown in FIG. 7, an ultrasonic range finder 71 is installed at a position away from the subject 70 by a distance W2, and ultrasonic waves are emitted from a predetermined X-ray tube focus point. Rangefinder 7
The subject thickness W3 may be obtained from the distance W1 to 1 from the following equation.

W3 = W1-W2

[0028]

As described in detail above, according to the present invention, a surgical operation / region selection key for selecting a surgical operation and a region,
A lateral direction selection key for selecting a lateral direction, a ten-key for entering the subject thickness, an enter key for confirming the shooting conditions, a display section for displaying various information, and a plurality of keys determined by the input operation. A shooting condition storage memory in which shooting conditions are stored, and by pressing the enter key after inputting information with the keys and the numeric keypad, the shooting conditions stored in the shooting condition storage memory are confirmed and By displaying the confirmed imaging conditions on the display unit, it is possible to provide an anatomical program operating method and device capable of promptly setting a large number of imaging conditions of the X-ray imaging apparatus.

[Brief description of drawings]

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

FIG. 2 is a diagram showing an example of the outer shape of an operation panel.

FIG. 3 is an explanatory diagram of distribution of operative method / site selection switches.

FIG. 4 is a flowchart showing the overall operation of the present invention.

FIG. 5 is a flowchart showing an example of a shooting condition setting operation.

FIG. 6 is a diagram showing a configuration example of a shooting condition storage memory.

FIG. 7 is an explanatory diagram of automatic measurement of subject thickness.

FIG. 8 is an explanatory diagram of tube voltage and tube current.

FIG. 9 is an explanatory diagram of a grid and an intensifying screen.

FIG. 10 is an operation explanatory diagram of a matrix selection system.

FIG. 11 is an operation explanatory diagram of a touch panel selection system.

[Explanation of symbols]

 20 Operation method / part selection key 21 Numeric keypad 23 Side direction selection key 24 Enter key 30 Display section 40 Operation panel 41, 42 Encoder 43 Bus 50 CPU 51 Imaging condition storage memory 60 X-ray imaging apparatus 61 High-voltage power supply 62 Current setting section 63 hours Setting section

Claims (2)

[Claims] 1. Various types of imaging conditions are stored in a memory in advance, a surgical operation and a region are selected using a surgical operation / site selection key, and then a lateral orientation is selected using a lateral orientation selection key, if necessary. Select, then enter the subject thickness using the numeric keypad, and then press the enter key to set and display the shooting conditions stored in the memory address determined by the input operation. An anatomical program operating method characterized by the above. 2. A technique / region selection key for selecting a technique and a region, a side direction selection key for selecting a side direction, a ten-key pad for inputting a subject thickness, and a condition for confirming an imaging condition. It is provided with an enter key, a display section for displaying various information, and a shooting condition storage memory in which a plurality of shooting conditions determined by the input operation are stored. After inputting information with the keys and the numeric keypad, press the enter key. Accordingly, the anatomical program operating device is characterized in that the photographic condition stored in the photographic condition storage memory is confirmed and the confirmed photographing condition is displayed on the display unit.