JP3791579B2 - X-ray imaging device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an X-ray imaging apparatus.
[0002]
[Prior art]
In the field of medical imaging, so-called screen film systems using intensifying screens and films have long been used for conventional X-ray imaging. The medical image of this system is an analog image, and the creation and transfer of the image must go through various steps, and usually requires a certain time. On the other hand, digital technology for medical images has been developed, and in particular, in a system for photographing with a flat panel detector (FPD), creation and transfer of images can be performed instantaneously.
[0003]
Moreover, there are many scenes where many patients must handle a large number of patients at the same time, and accidents in which such patients are mistaken have occurred. This problem has been pointed out on the other hand by errors of medical personnel, but the occurrence of such accidents must be prevented. For this reason, the medical image taken and the patient must be specified strictly.
[0004]
The flat panel detector here has a function of converting the X-ray energy irradiated through the subject into an electrical signal for reconstructing it as an X-ray transmission image, and is necessary for image diagnosis. This means a flat X-ray image flat detector having a plane with a sufficient area to cover this part.
[0005]
For example, in a conventional screen / film system, the patient's name is a method in which the patient's name is burned onto the film at the time of shooting, or a combination of alphabet letters made of lead on a cassette loaded with film. A method is used in which names are burned with X-rays together with body images.
[0006]
[Problems to be solved by the invention]
By the way, the X-ray image taken and the patient should never be mistaken. In particular, in portable photography in which X-ray photographs are taken around a hospital room, many people are photographed at once. On the other hand, in the photographing using the flat panel detector, the image information is digitized, and can be combined with the patient specific information. This specific information can also be easily read from the patient's IC card or the patient's own magnetic card, etc., and by integrating with the patient's image information, it is possible to prevent the image information from being mixed up.
[0007]
The present invention has been made in view of such circumstances, and an object thereof is to provide an X-ray imaging apparatus capable of preventing a medical error in the case of imaging using a flat panel detector. .
[0008]
[Means for Solving the Problems]
In order to solve the above problems and achieve the object, the present invention is configured as follows.
[0009]
According to the first aspect of the present invention, in the X-ray image photographing apparatus for photographing an X-ray image of a subject with a flat panel detector,
In the flat panel detector, a device for reading subject specific information and a storage circuit for subject specific information are built-in,
The subject specific information is read immediately before or after the shooting, and the subject specific information and the subject image information are integrated and stored in a memory built in the flat panel detector. Line image photographing device. ].
[0010]
According to the first aspect of the present invention, the apparatus for reading the subject specific information and the storage circuit for the subject specific information are built in the flat panel detector, and the subject specific information is obtained immediately before or after the photographing. Since the subject specific information and the subject image information are integrated and stored in the memory built in the flat panel detector, the mistake of the subject image information can be prevented more reliably. The flat panel detector incorporates a device for reading subject specific information and a storage circuit for subject specific information, so use an IC card or magnetic card carried by the patient, especially for bedside photography. Or by attaching a barcode to the bedside and reading it at the time of shooting, ID information of specific information of the subject can be acquired.
[0013]
The invention according to claim 2 is characterized in that “specific information and image information of a subject stored in a memory built in the flat panel detector are transmitted from the flat panel detector to a signal processing system using electromagnetic waves. The X-ray imaging apparatus according to claim 1 . ].
[0014]
According to the invention of claim 2 , by sending the object specific information and image information stored in the memory built in the flat panel detector to the signal processing system using electromagnetic waves from the flat panel detector, For example, by sending it to a centralized management information system of a hospital, it becomes possible to improve the efficiency of hospital affairs, such as creating a receipt.
[0015]
According to a third aspect of the present invention, “the X-ray imaging apparatus according to the first or second aspect, wherein the subject specific information input from the keyboard is read. ].
[0016]
According to the third aspect of the invention, by reading the subject specifying information input from the keyboard, the subject specifying information can be read reliably and easily.
[0017]
According to a fourth aspect of the present invention, “the X-ray imaging apparatus according to the first or second aspect, wherein the specific information of the subject recorded in the storage medium is read. ].
[0018]
According to the invention described in claim 4 , the subject specific information recorded in the storage medium is read, and the recording on the storage medium uses, for example, magnetic recording or recording as an electric signal in the IC, so that It is possible to easily read subject specific information.
[0019]
The invention according to claim 5 is: “X-ray imaging apparatus according to claim 1 or 2 , wherein the identification information of the subject that has been bar-coded is read. ].
[0020]
According to the fifth aspect of the present invention, it is possible to read the specific information of the subject reliably and simply by reading the bar-coded subject specific information.
[0023]
The invention according to claim 6 is characterized in that, based on the specific information of the subject, the name representing the subject and the attribute belonging to the subject and the image information are displayed on the same screen or the same film. The X-ray imaging apparatus according to any one of claims 1 to 5 . ].
[0024]
According to the invention described in claim 6 , since the name representing the subject and the attribute belonging to the subject and the image information are displayed on the same screen or the same film based on the specific information of the subject, for example, the image information and By displaying the patient's name, sex, age, etc. based on the patient's ID information on the same screen or the same hard copy, the patient of the image can be confirmed.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, one embodiment of the X-ray imaging apparatus of the present invention will be described, but it is obvious that many other embodiments exist.
[0026]
FIG. 1 is a diagram showing a configuration of an X-ray imaging apparatus. The X-ray imaging apparatus 1 includes a movable X-ray generator 3 in a movable apparatus body 2. X-rays are emitted from the movable X-ray generator 3, and an X-ray image is taken by a flat panel detector (FPD) 6 on the back of the patient 5 lying on the bed 4.
[0027]
2 and 3 show an example of the structure of the flat panel detector, FIG. 2 is a perspective view of the flat panel detector, and FIG. 3 is an exploded perspective view of the flat panel detector. The flat panel detector 6 has a function of converting the X-ray energy irradiated through the subject into an electric signal for reconstructing it as an X-ray transmission image. A flat X-ray image plane detector having a plane with a sufficiently covering area, which is largely formed from two parts, and the upper part 20 is a part which receives X-ray irradiation and converts it into an electric signal, The lower part 30 is a part for processing the electric signal. The portion of the lower portion 30 that processes electrical signals includes a power supply unit 31, a system control unit 32, a transmission module 33, and an outprint plug 34, and further includes an ID card reader 35, a switch box 36, and an ID information processing unit 37. A memory 38 and an image information processing unit 39 are provided.
[0028]
In addition, an ID card insertion port 40 is provided in the lower part 30. By inserting an ID card 41 of a patient lying on the bed 4 into the ID card insertion port 40, the switch of the switch box 36 is turned on and energized. At the same time as the card reader 35 is energized, ID information, which is subject specific information, is read, and X-ray image capturing is started.
[0029]
The part that receives the X-ray irradiation of the upper part 20 and converts it into an electric signal is a scintillator in which the means for converting the X-ray image into an electric signal converts X-rays such as CsI and gadolinium oxysulfide into visible light. And a part that converts the light into an electrical signal in an optical semiconductor array such as a-Si, and a part that condenses the light with a lens or an optical fiber and converts it into an electrical signal with a ССD or CMOS array, and a -Se, lead iodide, CdZnTe, etc. It is constituted by a portion of the TFT array that generates electrons and holes by X-ray energy and senses them.
[0030]
The X-ray image electrical signal obtained here is sent to the image information processing unit 39 located below and stored in the memory 38 as a digital signal. At this time, the ID information read by the ID card reader 35 is sent from the ID information processing unit 37 to the memory 38 and stored together with the image information. The image information combined with the ID information obtained here is connected to a personal computer or the like by an outprint plug 34, and is sent to an image display system such as a personal computer by the transmission module 33. Here, if necessary, further image processing is performed. The image is then displayed on the СRT screen, or the image and ID information are simultaneously printed on the film by a laser imager.
[0031]
As described above, when an X-ray image is captured by the flat panel detector 6, ID information, which is specific information of a subject (for example, a patient), is read immediately before or immediately after the imaging, and is stored together with the image information. The subject ID information and image information are integrated and stored in the memory 38 built in the flat panel detector 6. The subject ID information and image information stored in the memory 38 built in the flat panel detector 6 are transferred from the flat panel detector 6 to the signal processing system using electromagnetic waves.
[0032]
The subject image information can be read from the subject image information input from the keyboard, the subject ID information recorded as an electrical signal in the magnetic recording or IC, and the barcode. It is also possible to read the converted subject ID information.
[0033]
Particularly in bedside imaging, an IC card or magnetic card carried by a patient can be used. Alternatively, ID information can be acquired by attaching a barcode to the bedside and reading it at the time of shooting.
[0034]
FIG. 4 is a diagram showing an example in which ID information is combined with an X-ray image and displayed. Based on the ID information 50 that is the specific information of the subject, the name representing the subject, the attribute to which it belongs, and the image information 51 are displayed on the same screen or on the same film 60. By doing this, the ID information 50 and the image information 51 always move simultaneously, and the patient's name, sex, age, etc. based on the image information and the patient ID information are displayed on the same screen or the same hard copy. Therefore, it is possible to prevent the image information from being mistaken before the patient of the image can be confirmed.
[0035]
【The invention's effect】
As described above, according to the first aspect of the present invention , the object specifying information reading device and the object specifying information storage circuit are incorporated in the flat panel detector, and the object specifying is performed immediately before or after shooting. Since the information is read and the subject specific information and the subject image information are integrated and stored in a memory built in the flat panel detector, it is possible to more reliably prevent the subject image information from being mixed up. The flat panel detector incorporates a device for reading subject specific information and a storage circuit for subject specific information, so use an IC card or magnetic card carried by the patient, especially for bedside photography. Or by attaching a barcode to the bedside and reading it at the time of shooting, ID information of specific information of the subject can be acquired.
[0037]
In the invention according to claim 2 , the subject specific information and the image information stored in the memory built in the flat panel detector are sent from the flat panel detector to the signal processing system using electromagnetic waves, for example, in a hospital. By sending it to the centralized management information system, it is possible to improve the efficiency of hospital affairs such as the creation of receipts.
[0038]
According to the third aspect of the invention, it is possible to read the subject specifying information reliably and easily by reading the subject specifying information input from the keyboard.
[0039]
In the invention according to claim 4 , the subject specific information recorded on the storage medium is read, and the recording of the storage medium uses, for example, magnetic recording or recording as an electric signal in an IC, so that the subject can be easily and steadily used. Specific information can be read.
[0040]
According to the fifth aspect of the present invention, it is possible to read the specific information of the subject reliably and easily by reading the bar-coded subject specific information.
[0042]
In the invention according to claim 6 , since the name representing the subject and the attribute belonging to the subject and the image information are displayed on the same screen or the same film based on the subject specific information, for example, the image information and the patient ID By displaying the name, sex, age, etc. of the patient based on the information on the same screen or the same hard copy, the patient of the image can be confirmed.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a configuration of an X-ray image capturing apparatus.
FIG. 2 is a perspective view of a flat panel detector.
FIG. 3 is an exploded perspective view of a flat panel detector.
FIG. 4 is a diagram illustrating an example in which ID information is combined with an X-ray image and displayed.
[Explanation of symbols]
1 X-ray imaging device 6 Flat panel detector

Claims (6)

In an X-ray imaging apparatus that captures an X-ray image of a subject with a flat panel detector, the flat panel detector includes a reading device for specifying subject information and a storage circuit for specifying subject information.
The subject specific information is read immediately before or after the shooting, and the subject specific information and the subject image information are integrated and stored in a memory built in the flat panel detector. Line image photographing device.   2. The X according to claim 1, wherein the object specific information and the image information stored in a memory built in the flat panel detector are sent from the flat panel detector to a signal processing system using electromagnetic waves. Line image photographing device.   The X-ray imaging apparatus according to claim 1, wherein the subject specific information input from the keyboard is read.   The X-ray imaging apparatus according to claim 1 or 2, wherein the subject specific information recorded in the storage medium is read.   The X-ray imaging apparatus according to claim 1 or 2, wherein bar-coded subject specific information is read. Based on the specific information of the object, the first term in any one of claims 1 to claim 5, characterized in that displaying the Attributes and image information names and assigned to represent the object on the same screen or on the same film X ship image photographing device of description.

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