JP2014239818A - X-ray fluoroscopic photographing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an X-ray fluoroscopic photographing apparatus capable of performing operation by individually managing compression force in each subject.SOLUTION: An X-ray fluoroscopic photographing apparatus includes an X-ray fluoroscopic table having a compression device 104, a voltage generation device 109 for supplying voltage to the X-ray fluoroscopic table, an image processor 115 for processing an output from the X-ray fluoroscopic table, and an operation input-output part. A control part for controlling the compression device of an X-ray fluoroscopic photographing part sets compression force of the compression device on the basis of compression force setting information managed in each subject, and restricts the compression force of the compression device to the compression fore setting value or below included in the compression force setting information on the basis of a detection signal that detects a compressed state of the compression device.

Description

  The present invention relates to an X-ray fluoroscopic apparatus, and more particularly to a technique for performing an appropriate compression operation for each subject.

  The X-ray fluoroscopic apparatus uses a compression cylinder for compressing the stomach or the like in the subject's abdominal examination. The pressing force on the subject must be equal to or less than a specified value. For this purpose, means for detecting the upper limit value of the pressing force is generally provided. As a result, it is possible to inspect with a pressing force below a specified value.

  However, although there is a means to detect the upper limit value of the compression force, consideration is given to the subject who has physical anxiety such as osteoporosis, and the subject has discomfort and mental / physical distress due to the compression act. Consideration from the standpoint of the side is often not made on the device side, and the current situation is that the adjustment of the compression force is left to the operator's sense of operation. For this reason, even if the operator is the same or the operator is the same, the pressure will vary due to variations in operation, and the subject will be forced to accept the situation, thus eliminating anxiety, discomfort, and pain. There is nothing. In addition, since the degree of dependence on the operator is high, it is a mental burden for the operator.

  In order to solve this problem, Patent Document 1 discloses a configuration in which a volume for setting a compression force is provided and can be set each time. However, when the same person is inspected again, it is necessary to perform the setting again.

JP-A-6-154206

  In Patent Document 1 described above, the volume can be set each time with the volume for setting the compression force. However, when the same person is inspected again, it is necessary to perform the setting again. Especially when used for screening, it is difficult to grasp the information for each subject because of the nature of examining many subjects in a short time. Time has to be shortened, and individual consideration becomes increasingly difficult.

  An object of the present invention is to solve the above-described problems and provide an X-ray fluoroscopic apparatus that manages and operates a compression force for each subject.

  In order to achieve the above object, in the present invention, an X-ray fluoroscopic unit having a compression device, a voltage generating unit that supplies a voltage to the X-ray fluoroscopic unit, and an output from the X-ray fluoroscopic unit are processed. An image processing unit and an input / output unit are provided, the X-ray fluoroscopic unit has a control unit that controls the compression device, and the control unit is based on the compression force setting information managed for each subject. X-ray fluoroscopy device configured to limit the compression force of the compression device below the compression force setting value included in the compression force setting information based on a detection signal that detects the compression state of the compression device To do.

  According to the present invention, it is possible to set a compression force within a range equal to or less than a specified value for each subject, and it is possible to reduce the burden on the subject by an appropriate compression operation by the operator.

1 is a diagram illustrating a configuration example of an X-ray fluoroscopic apparatus according to Embodiment 1. FIG. 3 is a block diagram of an example of a compression control unit of the X-ray fluoroscopic apparatus according to Embodiment 1. FIG. 3 is a detailed block diagram of a main part of a compression control unit of the X-ray fluoroscopic apparatus according to Embodiment 1. FIG. It is a figure which shows an example of the schematic flow of the compression control of the X-ray fluoroscopic apparatus which concerns on Example 1. FIG. It is a figure which shows the other example of the schematic flow of the compression control of the X-ray fluoroscopic apparatus which concerns on Example 1. FIG. It is the figure which showed typically the state which pressed the subject with the X-ray fluoroscopic apparatus which concerns on Example 1. FIG. It is the figure which showed typically the state which squeezed and pressed the subject in the X-ray fluoroscopic imaging apparatus which concerns on Example 1. FIG. FIG. 6 is a diagram illustrating a display example on the screen of the display device during a compression operation in the X-ray fluoroscopic apparatus according to the first embodiment.

  Hereinafter, embodiments for carrying out the present invention will be sequentially described with reference to the drawings. In a preferred aspect of the present invention, an X-ray fluoroscopic apparatus includes an X-ray fluoroscopic table having a compression device, a high voltage generator, an operation console capable of proximity operation or remote operation, and an image processing apparatus. And a display device and a control unit, the control unit is a compression force setting means that can set the compression force within a range below the specified value for each subject, and the compression force for each subject as subject information Information registration management means for registering and managing set values and incidental information, compression state detection means for detecting compression force / compression state in real time, compression force restriction means for limiting the compression force to a set value or less, and intended compression It has a compression state determination means for determining whether it is a method / compression force and urging an appropriate compression operation.

The first embodiment is an embodiment of an X-ray fluoroscopic apparatus that has a determination unit that can manage the compression force for each subject, limit the compression force, and determine whether the compression operation is appropriate. is there. That is, an X-ray fluoroscopic unit having a compression device, a voltage generating unit that supplies a voltage to the X-ray fluoroscopic unit, an image processing unit that processes an output from the X-ray fluoroscopic unit, and an input / output unit are provided. ,
The fluoroscopic imaging unit has a control unit that controls the compression device, and the control unit sets the compression force of the compression device based on the compression force setting information managed for each subject, and compresses the compression device. It is an Example of the X-ray fluoroscopic apparatus which restrict | limits the compression force of a compression apparatus to below the compression force setting value contained in compression force setting information based on the detection signal which detected the state.

  FIG. 1 is a diagram illustrating an example of the overall configuration of the X-ray fluoroscopic apparatus according to the first embodiment. The X-ray fluoroscopic apparatus 100 according to the present embodiment includes an X-ray fluoroscopic imaging table 101 having a compression device 104 serving as an X-ray fluoroscopic imaging unit, and a voltage generation unit for applying a high voltage to the X-ray fluoroscopic imaging table 101. An image processing device 115 that serves as an image processing unit that receives a detection signal from the high-voltage generating device 109 and the fluoroscopic imaging unit, and an image processing unit that performs image processing; It consists of the part 110 etc.

  The X-ray fluoroscopic imaging table 101 includes an X-ray tube device 102, an image column 103, an X-ray receiver 105, a top plate / support frame 106 in which the X-ray receiver 105 is arranged, a control unit 107, and the like. Is done. In addition, the control unit 107 of the X-ray fluoroscopic apparatus 100 of the present embodiment is a compression control unit that controls the compression device 104 according to the operation of the compression operation lever 112 and the ironing operation lever 113 on the console 114 of the operation unit 110. 108 is included. That is, an operation lever for operating the compression device is provided as an input / output unit, and the compression cylinder of the compression device can be operated by operating this operation lever.

  Further, the image processing device 115 receives a signal from the X-ray receiver 105 and executes image processing, thereby generating an X-ray fluoroscopic image and outputting it to the display device 111 or the like. The operator can operate the compression cylinder of the compression device 104 by an operation such as depressing the compression operation lever 112 or the ironing operation lever 113. The control unit 107 includes, for example, a central processing unit (CPU) that executes a program and a memory that is a storage unit that stores programs and data, and the CPU executes a compression control program. Can be realized.

  An example of the functional configuration of the compression control unit 108 of the fluoroscopic imaging apparatus 100 of the present embodiment will be described with reference to FIGS. 2A and 2B. As shown in FIG. 2A, the compression control unit 108 of the present embodiment is, for example, an information registration management unit that is installed inside the apparatus or outside the apparatus, and registers and manages the compression force setting value and incidental information for each subject. 200, compression force setting information including compression force setting value and incidental information for each subject to be imaged is received as subject ID information, and compression that can set the compression force within a specified value or less for each subject Force setting means 201 is provided. Also, a compression state detection unit 202 that receives a sensor output and detects a compression force / compression state on the subject in real time, a compression force limiting unit 208 that limits the compression force to a set value or less, an intended appropriate compression method, A compression state determination unit 209 that determines whether or not the compression force is applied and prompts an appropriate compression operation is provided. That is, the control unit can determine whether or not the compression is performed with the intended compression method / compression force by using the detection signal of the sensor, and an appropriate compression operation is performed by outputting the determination result. Can be urged.

  As shown in FIG. 2B as an example, the compression state detection means 202 in FIG. 2A includes a force detection means 203 and a compression state classification means 207. The force detection means 203 further includes strain sensors 204 and 205 The electric signal-force information converting means 206 for converting the electric signal, which is the output of, into force information. As shown in FIGS. 4A and 4B later, at least one of the strain sensors 204 and 205 is disposed on the upper surface or the lower surface of the compression cylinder support arm 402 and at least one of the two side surfaces. It arrange | positions so that the distortion | strain of the longitudinal direction of the cylinder support arm part 402 may be detected. The strain sensor 1 disposed on the upper surface or the lower surface corresponds to the sensor 204 for detecting the compression state, and the strain sensor 2 disposed on the side surface corresponds to the sensor 205 for detecting the ironing state.

  The torsion of the compression cylinder 401 is detected by a combination of the strain sensor 1 and the strain sensor 2. After the electrical signals from the strain sensors 204 and 205 are converted into forces by the electrical signal-force information conversion means 206, the compression state classification means 207 performs compression / compression based on the respective force ratios obtained from the strain sensors 204 and 205. Classify the state of ironing and twisting. In other words, a plurality of strain sensors are installed on each of the compression operation lever and the ironing operation lever, and the control unit performs control using the outputs of the plurality of strain sensors as detection signals.

  Thereafter, the compression control unit 108 determines and limits whether the compression force is a standard value that is a limit value of the compression force or an individual value or less by the compression force limiting means 208, and whether the command from the operator is only the compression operation. The compression state determination means 209 determines whether or not the combined compression and squeezing operation matches the result indicating the direction in which the compression cylinder support arm 402 is distorted. As will be described later, information such as numerical values, gauges, and characters is displayed on the display device 111. Therefore, the operator confirms the result of the intended operation on the screen display, determines whether or not the compression state is appropriate, and the operator corrects the operation method as necessary. The configuration of the compression state detection unit 202 shown in FIG. 2B is an example. For example, the electrical signal-force information conversion unit 206 is arranged in front of the compression force limiting unit 208 that determines whether or not the compression force limitation is necessary. It may be configured.

  Next, the flow of the operation of the compression control of the X-ray fluoroscopic apparatus 100 of the present embodiment will be described with reference to a diagram illustrating a specific example of the schematic flow of FIGS. 3A and 3B. In the general compression flows 1 and 2, for example, in the abdominal examination of the stomach or the like, first, when the ID information of the subject is registered, the compression force setting information including the compression force and the accompanying information is registered in the information registration management unit 200. . The accompanying information of the compression force setting information includes a reason related to the compression force limitation, for example, the fracture history of the subject's ribs, the history of osteoporosis, and the like. In particular, since medical examinations are regularly taken, if the same facility / equipment or equipment has the same function, the previous compression force setting information is automatically read from the information registration management means 200 at the next medical examination. By doing so, the registration work can be omitted, and the operator can enter the inspection smoothly. Even if the devices are not the same, information can be shared if the devices have the same function.

  Then, the compression force of the subject is read from the compression force setting information registered in the information registration management means 200 installed inside or outside the apparatus, and is set in the apparatus by the compression force setting means 201. As shown in FIG. 3A, when the operation is started (300), the subject is subjected to abdominal compression of the stomach or the like by the compression cylinder of the compression device 104 during the X-ray examination (301). The compression force received by the subject is detected (302) in real time from the compression state detection unit 202 and fed back, and is standardized by the compression force limiting unit 208, for example, a reference value defined by a standard such as JIS, and / or compression. Compared with individual limit values for each subject set by the force setting means 201 (303, 305), a limit is applied so as not to exceed the standard value and / or the compression force set by the compression force setting means 201 (304, 306).

  The compression state detection means 202 detects the compression force and the compression state with the strain sensors 204 and 205 of the force detection means 203 provided on the compression cylinder support arm 402 and the compression state classification means 207 that receives the output. Note that the schematic flow of FIG. 3B illustrates a case where only comparison with individual limit values for each subject is performed, and this flow shows that the individual limit values are lower than the standard values when registering the compression force setting information. In addition to being used on the premise that it has been set, the operation flow is the same as in FIG. 3A, and therefore detailed description thereof is omitted here.

  Through the flow of operations described above, the operator of the X-ray fluoroscopic apparatus 100 according to the present embodiment can examine the subject with a constant operation without worrying about the compression force for each subject. I can do it. In addition to this, the operator considers the subject by detecting whether the compression is properly performed by the compression state detection unit 202, and prompting the determination / appropriate operation by the compression state determination unit 209. It is possible to perform a compression operation, and the burden on the subject can be reduced by a better compression operation. Note that the force detection means 203 is arranged so as to detect a force perpendicular to the compression force in addition to the compression force, and it is possible to convert the information into twist information by the compression state determination means 209. As described above.

Here, an example of an inappropriate compression operation will be described with reference to FIGS. 4A and 4B.
FIG. 4A is a diagram schematically illustrating a state in which the subject is pressed in the X-ray fluoroscopic apparatus 100 according to the first embodiment. In this figure, when the compression cylinder 401 is operated in a direction in which it is pressed against the subject, the compression force is detected by the compression state detection means 202 as a reaction force from the subject. When the outside part is accidentally compressed, the compression cylinder 401 twists the compression cylinder indicating arm 402. 2A and 2B detects the twist, and based on the output, the compression state determination unit 209 determines that the twist is not appropriate, and prompts the display device 111 to perform appropriate compression, for example. There are various methods for prompting this appropriate compression operation, such as a guide by voice, a guide by character display such as letters and hieroglyphs, a guide by switching the lighting / lighting color of the lamp, etc. May be used in combination.

  4B is a diagram schematically illustrating a state in which the subject is squeezed and pressed in Example 1. FIG. In addition to the above compression, moving the compression cylinder 401 in a direction perpendicular to the compression direction to perform a squeezing operation is referred to as squeezing compression. In this case, the influence of frictional force with the subject also in the compression and vertical direction. Receive more. This force causes the compression cylinder 401 to be twisted as shown in the figure. However, when the squeezing operation is mistakenly performed on a part other than the squeeze compression purpose, such as a rib, as described above, the compression cylinder 401 is compressed. The support arm 402 is further twisted. This torsion is detected by the compression state detection unit 202, and the compression state determination unit 209 determines that the twist is not appropriate, and prompts appropriate compression.

  In addition, it is possible to operate more intuitively by allowing feedback according to the reaction force of the compression to the compression operation lever and the ironing operation lever operated by the operator, but the intended operation However, the lever operation itself tends to require skill because it is difficult to perform and depends on the difference in the sense of the operator. Therefore, if some information is fed back to the operating lever, it is possible to add a control to return the operating lever only when it is not appropriate, or to make it a guide that does not rely only on visual information, such as a slight vibration of the lever. It is.

  FIG. 5 shows an example of a GUI (Graphical User Interface) of the display device 111 of this embodiment. The display area 501 of the display device includes a fluoroscopic image display area 502, a menu bar 503 relating to examination / image, an individual compression force setting value 504 set for each subject, and a compression force standard value 505 determined by a predetermined standard. A message display unit 507 for displaying the compression force gauge 506, the classification of the compression, the result of the state determination, and the like is displayed. The above-described display for prompting appropriate compression is displayed on the message display unit 507, and the compression force applied to the subject is displayed on the compression force gauge 506. A series of operations can be performed while checking the magnitude of force, the classification and state of compression, and confirming whether the intended compression is being performed. That is, a display unit that functions as one of the input / output units and displays a captured image output by the image processing unit displays a compression force setting value, a compression force calculated based on the detection signal, and the like. The display unit can display the standard value of the compression force in addition to the compression force setting value managed for each subject. Further, the display unit can display a result of determining whether or not the control unit is compressing with the intended compression method / compression force using the outputs of the plurality of strain sensors as detection signals.

  The X-ray fluoroscopic apparatus of the present invention described above is proposed as one approach for reducing the burden on the subject and the operator, and inspects many subjects in a short time in the abdominal examination. In particular, it is particularly suitable for regular implementation.

    According to the embodiment described above, it is possible to set the compression force within a range equal to or less than a specified value for each subject. In addition, management information and related information related to compression force as compression force setting information for each subject, for example, special matters such as the reason for limiting the compression force of the subject, are managed, and the compression force at the next examination. Setting information can be read out. In addition, it is possible to detect the appropriate compression state and compression force by the compression cylinder in real time with the sensor, and it is possible to determine the state of simple compression and squeezing compression, and it is possible to detect inappropriate compression due to torsion of the compression cylinder. It is possible to reduce the burden on the subject by urging the pressure and appropriately pressing the operator.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for better understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  Further, the above-described configuration, function, processing unit, and the like have been described as an example of creating a program that realizes part or all of them. Needless to say, it can be realized with this.

DESCRIPTION OF SYMBOLS 100 X-ray fluoroscopic imaging apparatus 101 X-ray fluoroscopic imaging stand 102 X tube apparatus 103 Image | video support | pillar 104 Compression apparatus 105 X-ray receiver 106 Top plate and support frame part 107 Control part 108 Compression control part 109 High voltage generator 110 Operation part 111 Display devices 112, 113 Operation lever 114 Console 115 Image processing device 200 Information registration management means 201 Compression force setting means 202 Compression state detection means 203 Force detection means 204, 205 Strain sensor 206 Electrical signal-force information conversion means 207 Compression state separation Means 208 Compression force limiting means 209 Compression state determination means 501 Display area 502 of the display device Radiographic image display area 503 Menu bar 504 Compression force individual set value 505 Compression force standard value 506 Compression force gauge 507 Message display section

Claims (10)

An X-ray fluoroscopic unit having a compression device, a voltage generating unit that supplies a voltage to the X-ray fluoroscopic unit, an image processing unit that processes an output from the X-ray fluoroscopic unit, and an input / output unit ,
The X-ray fluoroscopic unit has a control unit that controls the compression device;
The controller is
Based on the compression force setting information managed for each subject, set the compression force of the compression device,
Based on the detection signal that detects the compression state of the compression device, the compression force of the compression device is limited to a compression force setting value or less included in the compression force setting information.
X-ray fluoroscopic apparatus characterized by the above. The X-ray fluoroscopic apparatus according to claim 1,
The controller is
Using the detection signal, it is determined whether or not it is compressed with the intended compression method / compression force,
X-ray fluoroscopic apparatus characterized by the above. The X-ray fluoroscopic apparatus according to claim 1,
As the input / output unit, provided with an operating lever for operating the compression device,
By operating the operation lever, it is possible to operate the compression cylinder of the compression device.
X-ray fluoroscopic apparatus characterized by the above. The X-ray fluoroscopic apparatus according to claim 3,
The operating lever includes a compression operating lever and a squeezing operating lever,
Each of the compression operation lever and the ironing operation lever is provided with a plurality of strain sensors,
The control unit controls outputs of the plurality of strain sensors as the detection signals;
X-ray fluoroscopic apparatus characterized by the above. The X-ray fluoroscopic apparatus according to claim 1,
The input / output unit includes a display unit capable of displaying a captured image output by the image processing unit,
The display unit displays the compression force calculated based on the compression force setting value and the detection signal.
X-ray fluoroscopic apparatus characterized by the above. The X-ray fluoroscopic apparatus according to claim 5,
In addition to the compression force setting value managed for each subject, the display unit can display a compression force standard value.
X-ray fluoroscopic apparatus characterized by the above. The X-ray fluoroscopic apparatus according to claim 2,
As the input / output unit, a compression operation lever for operating the compression device and a squeezing operation lever are provided,
By operating the compression operation lever and the ironing operation lever, the compression cylinder of the compression device can be operated,
Each of the compression operation lever and the ironing operation lever is provided with a plurality of strain sensors,
The control unit controls outputs of the plurality of strain sensors as the detection signals;
X-ray fluoroscopic apparatus characterized by the above. The X-ray fluoroscopic apparatus according to claim 7,
The control unit determines whether or not the output of the plurality of strain sensors is compressed with the intended compression method / compression force as the detection signal,
X-ray fluoroscopic apparatus characterized by the above. The X-ray fluoroscopic apparatus according to claim 8,
The input / output unit includes a display unit capable of displaying a captured image output by the image processing unit,
The display unit displays the compression force setting value and the compression force calculated based on the detection signal.
X-ray fluoroscopic apparatus characterized by the above. The X-ray fluoroscopic apparatus according to claim 9,
The display unit displays a result of determining whether or not the control unit is compressing with an intended compression method / compression force using the outputs of the plurality of strain sensors as the detection signals,
X-ray fluoroscopic apparatus characterized by the above.

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