JP2011004830A - X-ray apparatus - Google Patents

Abstract

To provide an X-ray imaging apparatus capable of always taking an image under an appropriate imaging condition by preventing forgetting to change an imaging condition such as an X-ray condition accompanying a change in an imaging region.
A control unit 11 confirms and stores the currently set heights H and SIDs of an X-ray detector 5 and an X-ray tube 1 with height sensors 3h and 2h and a distance sensor 2l. The database is searched to check whether the height H and SID are ordered and are suitable for the imaging region to be imaged this time. If it is not suitable and the order of the ordered imaging regions is not changed, imaging conditions not set for the imaging region to be imaged this time are listed on the display unit 13 and a warning is displayed.
[Selection] Figure 1

Description

  The present invention relates to an X-ray imaging apparatus, and more particularly to a technique for preventing X-ray imaging under inappropriate imaging conditions.

  This type of X-ray imaging apparatus includes an X-ray tube that irradiates a subject with X-rays, and an X-ray tube holder that suspends and holds the X-ray tube so that it can move horizontally and vertically. And an X-ray detector comprising a cassette or a portable FPD with a built-in X-ray film for imaging X-rays transmitted through the subject, and the X-ray detector is detachably held and designated It is composed of a standing position stand and a standing position stand that are selected and used in accordance with the photographing method, and a control console for controlling the respective components.

  Conventionally, when X-ray imaging is performed in a hospital, the X-ray detector is set on a standing imaging table (standing stand) or a standing imaging table (bed with a top plate) for X-ray detection depending on the imaging purpose. The patient is placed on the imaging table where the instrument is set, and the X-ray tube moves to a position suitable for the imaging technique by inputting the imaging technique from the control panel of the control console, and the imaging start operation is performed. .

  For example, when chest imaging is completed at a standing stand and abdominal imaging is continued at a standing stand, the operator lowers the X-ray detector of the standing stand to align the subject's abdomen, and the opposite X The height of the tube is also lowered in accordance with the X-ray detector, and imaging is performed after changing imaging conditions such as X-ray conditions and SID.

  If there is an ordered imaging region, the surgeon performs imaging by setting the height of the X-ray detector, the height of the X-ray tube and the SID corresponding to the ordered imaging region.

  On the other hand, there has been proposed an X-ray imaging apparatus that can surely confirm that the subject who has come to the room before the operator examines the subject. In the X-ray imaging apparatus, a face photograph of the subject is read from the storage device and displayed on the display. The surgeon hears the name from the subject who came to the room and confirms the identity by looking at the displayed face photo and name. This check is always performed before inspection (see Patent Document 1).

JP 2005-261854 A

  As described above, when chest imaging is completed at the standing stand and abdominal imaging is performed continuously, the operator lowers the X-ray detector of the standing stand and aligns with the abdomen of the subject, and the opposite X-ray Although the height of the tube is also lowered in accordance with the X-ray detector, imaging may be performed without forgetting to change the imaging conditions such as the X-ray conditions. When there is an ordered imaging region, the order of the ordered imaging region is changed, and the height of the X-ray detector, the height of the X-ray tube and the SID corresponding to the changed imaging region are set. There are cases where imaging is performed without forgetting to change imaging conditions such as X-ray conditions. In the above case, photographing is performed under wrong photographing conditions, a good image cannot be obtained, and re-photographing is necessary, and the subject is excessively exposed.

  The present invention relates to an X-ray tube that exposes a subject to X-rays, an X-ray tube holder that holds the X-ray tube, and an X-ray detector that images the X-rays transmitted through the subject. And an X-ray imaging apparatus comprising a detector holding unit that holds the X-ray detector and a control unit that controls each component. Detection means for detecting presence / absence and warning display means for displaying a warning when a change in the photographing condition is not detected are provided. In addition, the change in the position of each of the constituent elements is a change in the position of the X-ray detector held in the detector holding unit, or a change in the position of the X-ray tube held in the X-ray tube holding unit. Or SID change.

  In addition, an X-ray tube that exposes the subject to X-rays, an X-ray tube holder that holds the X-ray tube, an X-ray detector that images the X-rays transmitted through the subject, In an X-ray imaging apparatus having a detector holding unit for holding the X-ray detector and a receiving means for receiving an order of an imaging region, a database indicating a relationship between the position of each component and the imaging region, an imaging region And a program showing the relationship between the shooting conditions, and a warning display means for searching the database and the program and displaying a warning when the current position of each component and the shooting conditions do not match. Moreover, the position of each component is the position of the X-ray detector, the position of the X-ray tube, or SID. Therefore, the operator never forgets to change the imaging conditions such as the X-ray conditions.

  If you do not change the X-ray detector position, the X-ray tube position, or the SID after changing the X-ray conditions for changing the imaging part, a warning is displayed, so you forget to change the imaging conditions. do not do. Therefore, there is no need for re-imaging and no extra exposure is given to the subject. In addition, improvement in diagnostic efficiency can be expected.

It is a figure which shows schematic structure of the X-ray imaging apparatus by the Example of this invention. It is a flowchart which shows operation | movement of the X-ray imaging apparatus by the Example of this invention. It is a flowchart which shows operation | movement of the X-ray imaging apparatus by the Example of this invention.

  An X-ray imaging apparatus according to an embodiment of the present invention is for general imaging, and is an X-ray tube that irradiates a subject with X-rays and a ceiling traveling type that can move the X-ray tube in a horizontal direction and a vertical direction. An X-ray tube holding unit that is suspended and held, an X-ray detector that includes an FPD that images X-rays transmitted through the subject, and a detector that holds the X-ray detector so as to be movable in the vertical direction Consists of a holding part (standing stand).

  An X-ray imaging apparatus according to Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 1 is a diagram showing a schematic configuration of an X-ray imaging apparatus according to Embodiment 1 of the present invention. FIG. 2 is a flowchart showing the operation of the X-ray imaging apparatus according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the X-ray imaging apparatus according to Embodiment 1 of the present invention has an X-ray tube 1 that has a focal point 1a and exposes an X-ray to a subject M, and the X-ray tube 1 in the horizontal and vertical directions. An X-ray tube holding unit 2 that is movably held, a standing stand 3 that holds a bucky unit 4 in which an X-ray detector 5 composed of an FPD is disposed, and an X-ray tube An X-ray generator 15 that controls exposure and a control console 8 that controls each of the above-described components and receives an order of an imaging region transmitted from image processing or a radiation information system (RIS).

  The height H from the floor of the X-ray detector 5 is detected by a height sensor 3 h (not shown) disposed on the standing stand 3. The output of the height sensor 3h composed of a potentiometer is input to the control unit 11 as a resistance value and converted to a height H. The height H from the floor of the X-ray tube 1 is detected by a height sensor 2 h (not shown) disposed in the X-ray tube holding unit 2. The output of the height sensor 2h composed of a potentiometer is input to the control unit 11 as a resistance value and converted to a height H. A distance L (SID) between the focal point 1a and the X-ray detector 5 is detected by a distance sensor 2l (not shown) disposed in the X-ray tube holding unit 2. The output of the distance sensor 21 formed of a potentiometer is input to the control unit 11 as a resistance value and converted to SID.

  The X-ray generator 15 includes an X-ray controller 16 and a high voltage device 17. The control console 8 includes an image processing unit 9, a condition storage unit 12, a display unit 13, an operation panel 10, and a control unit 11. Each component has a function described below.

  The X-ray controller 16 controls the X-ray tube 1 through the high-voltage device 17 based on the X-ray conditions stored in the condition storage unit 12 in accordance with instructions from the control unit 11. The X-ray transmitted through the subject M enters the X-ray detector 5, is converted into an electrical signal, is input to the image processing unit 9, is imaged, and is displayed on the display unit 13.

  The control unit 11 controls each component, and includes a database indicating the relationship between the imaging region, the SID, and the height H of the X-ray tube 1 according to the height of the subject M, the imaging region, Save a program that shows the relationship between shooting conditions.

  With respect to the X-ray imaging apparatus according to Embodiment 1 of the present invention, operations and operations for imaging will be described with reference to FIG. In step (hereinafter, “S” is added before the operation order number) 1, the surgeon places the subject M on the standing stand 3 for, for example, chest imaging, and the X-ray detector 5. The height H and SID of the X-ray tube 1 are set to positions suitable for chest imaging, and X-ray conditions suitable for chest imaging are input from the operation panel 10. In S2, chest imaging is performed.

  In S3, for example, in order to perform, for example, abdominal imaging, the surgeon sets the height H or SID of the X-ray detector 5 or X-ray tube 1 to a position suitable for abdominal imaging. In S4, the control unit 11 determines that the height H or SID of the X-ray detector 5 or X-ray tube 1 is used for abdominal imaging from the input signals of the height sensors 3h, 2h or the distance sensor 21 and the stored database. Detect changes. The control unit 11 searches the stored database and program to determine whether all the imaging conditions have been set for abdominal imaging. If the imaging conditions have been set, the process proceeds to S5, and if there is an unset imaging condition, the process proceeds to S6.

  In S5, abdominal imaging is performed. In S6, the control unit 11 lists the imaging conditions not set for abdominal imaging on the display unit 13 and displays a warning. In S7, the surgeon changes the imaging conditions not set for abdominal imaging to abdominal imaging, and returns to S4.

  An X-ray imaging apparatus according to Embodiment 2 of the present invention will be described with reference to FIGS. FIG. 1 is a diagram showing a schematic configuration of an X-ray imaging apparatus according to Embodiment 2 of the present invention. FIG. 3 is a flowchart showing the operation of the X-ray imaging apparatus according to Embodiment 2 of the present invention. Since FIG. 1 has been described in detail in the section of Embodiment 1, the description thereof is omitted in this section.

  With respect to the X-ray imaging apparatus according to Embodiment 2 of the present invention, operations and operations for imaging will be described with reference to FIG. In step (hereinafter, “S” is added before the operation order number) 1, the control unit 11 receives and stores the order of the imaging region. In S <b> 2, the surgeon places the subject M on the standing stand 3. In S3, the operator sets the height H and SID of the X-ray detector 5 and the X-ray tube 1 to a position suitable for the target imaging region, and inputs the X-ray conditions suitable for the imaging region from the operation panel 10. To do.

  In S4, the control unit 11 confirms the currently set heights H and SIDs of the X-ray detector 5 and the X-ray tube 1 with input signals from the height sensors 3h and 2h and the distance sensor 21. Referring to a stored database (showing the relationship between the imaging region and the height H and SID of the X-ray detector 5 and X-ray tube 1 suitable for imaging the region), the confirmed height H And it is checked whether the SID is suitable for imaging of the imaging region to be imaged this time. If it is suitable, the process proceeds to S5, and if it is not suitable, the process proceeds to S8. In S5, imaging of this imaging region is executed. In S6, if all of the ordered imaging regions have been imaged, the process ends. If there is an imaging region not yet imaged, the process proceeds to S7. In S7, preparation for imaging of the next imaging region is made, and the process returns to S3.

  In S8, if the order of the ordered imaging parts is to be changed, the process proceeds to S11. Otherwise, the process proceeds to S9. In S9, the control unit 11 lists the imaging conditions that have been ordered and are not set for the imaging region to be imaged this time, and displays a warning. In S10, the surgeon corrects the imaging conditions listed in S9 and returns to S4. In S11, the surgeon changes the order of the ordered imaging parts stored in the control unit 11, and returns to S4.

  Since the present invention is configured as described above, a warning is displayed when the imaging conditions such as the X-ray conditions are not changed after changing the height H of the X-ray detector 5 and the X-ray tube 1 and the SID for changing the imaging region. Therefore, forgetting to change the shooting conditions does not occur. In addition, when photographing the ordered imaging region, an erroneous setting of the imaging condition is prevented, and when changing the order of the ordered imaging region, forgetting to change the imaging condition is prevented. Therefore, there is no need for re-imaging and no excessive exposure is given to the subject M. In addition, improvement in diagnostic efficiency can be expected.

  In the embodiment shown in the figure, the subject M is photographed while being placed on the standing stand 3, but instead, the X is moved in the horizontal direction on the supine position photographing stand (bed with a top plate). A configuration including a tube tube, an X-ray detector, a sensor for detecting the amount of movement of the top plate, and a sensor for detecting SID has the same function and is included in the present invention. In FIG. 2, the imaging part is performing the back abdomen imaging of the chest imaging, but this is an example and the present invention is not limited to this example. As described above, the present invention is not limited to the illustrated examples and includes various modifications.

  The present invention relates to an X-ray imaging apparatus, and may be used for a technique for preventing X-ray imaging under particularly inappropriate imaging conditions.

DESCRIPTION OF SYMBOLS 1 X-ray tube 1a Focus 2 X-ray tube holding | maintenance part 2h Height sensor 2l Distance sensor 3 Standing stand 3h Height sensor 4 Bucky part 5 X-ray detector 8 Control console 9 Image processing part 10 Operation panel 11 Control part 12 Conditions Storage unit 13 Display unit 15 X-ray generator 16 X-ray controller 17 High-voltage device M Subject

Claims (8)

  An X-ray tube for exposing the subject to X-rays, an X-ray tube holder for holding the X-ray tube, an X-ray detector for imaging X-rays transmitted through the subject, and the X-ray In an X-ray imaging apparatus including a detector holding unit that holds a line detector and a control unit that controls each of the constituent elements, the presence or absence of a change in imaging conditions that accompanies a change in the position of each of the constituent elements is detected. An X-ray imaging apparatus comprising: detection means; and warning display means for displaying a warning when a change in the imaging conditions is not detected.   The X-ray imaging apparatus according to claim 1, wherein the change in the position of each component is a change in the position of the X-ray detector held by the detector holding unit.   2. The X-ray imaging apparatus according to claim 1, wherein the change in the position of each component is a change in the position of the X-ray tube held by the X-ray tube holding unit.   The X-ray imaging apparatus according to claim 1, wherein the change in the position of each component is a change in SID.   An X-ray tube for exposing the subject to X-rays, an X-ray tube holder for holding the X-ray tube, an X-ray detector for imaging X-rays transmitted through the subject, and the X-ray In an X-ray imaging apparatus having a detector holding unit that holds a line detector and a receiving unit that receives an order of an imaging part, a database that indicates a relationship between the position of each component and the imaging part, an imaging part, and an imaging part An X-ray imaging apparatus comprising: a program indicating a relationship between conditions; and a warning display unit that searches the database and the program and displays a warning when the current position of each component and the imaging conditions do not match .   6. The X-ray imaging apparatus according to claim 5, wherein the position of each component is the position of the X-ray detector.   6. The X-ray imaging apparatus according to claim 5, wherein the position of each component is the position of the X-ray tube.   6. The X-ray imaging apparatus according to claim 5, wherein the position of each component is a SID.

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