WO2013094836A1 - Digital x-ray apparatus for diagnosing breast cancer and diagnosis method - Google Patents

Digital x-ray apparatus for diagnosing breast cancer and diagnosis method Download PDF

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Publication number
WO2013094836A1
WO2013094836A1 PCT/KR2012/005567 KR2012005567W WO2013094836A1 WO 2013094836 A1 WO2013094836 A1 WO 2013094836A1 KR 2012005567 W KR2012005567 W KR 2012005567W WO 2013094836 A1 WO2013094836 A1 WO 2013094836A1
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Prior art keywords
breast
ray
detector
size
breast cancer
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PCT/KR2012/005567
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French (fr)
Korean (ko)
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이인재
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(주)제노레이
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01TMEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16Measuring radiation intensity
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/04Positioning of patients; Tiltable beds or the like
    • A61B6/0407Supports, e.g. tables or beds, for the body or parts of the body
    • A61B6/0414Supports, e.g. tables or beds, for the body or parts of the body with compression means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03Computerised tomographs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/50Clinical applications
    • A61B6/502Clinical applications involving diagnosis of breast, i.e. mammography
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/52Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5211Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data
    • A61B6/5229Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image
    • A61B6/5235Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image combining images from the same or different ionising radiation imaging techniques, e.g. PET and CT
    • A61B6/5241Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image combining images from the same or different ionising radiation imaging techniques, e.g. PET and CT combining overlapping images of the same imaging modality, e.g. by stitching
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/42Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4233Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using matrix detectors

Definitions

  • the present invention relates to a breast cancer diagnosis apparatus, and more particularly, to a digital x-ray breast cancer diagnosis apparatus that can cope with various breast sizes, and is particularly optimized for the diagnosis of breast cancer of a fat-type breast such as breast after menopause or Asian women.
  • breast adenocarcinoma or breast cancer which refers to a mass of cancerous cells in the breast, is an important medical problem for women, which is not only a major cause of mortality in women, but also causes disability, psychological shock, and economic loss. .
  • a breast cancer diagnosis system using X-rays has been developed.
  • an analog film method was used, but recently, a semiconductor flat plate such as aSi-TFT and aSe-TFT detector (Detector) is used instead of the analog film method.
  • Digital methods using digital detectors such as detectors and CCDs are widely used for breast cancer diagnosis.
  • Digital breast cancer diagnosis system using a semiconductor flat panel detector (hereinafter referred to as a 'detector') generates a higher resolution, a wider dynamic range, and a higher electrical signal compared to a conventional analog film photographing apparatus. It has advantages such as easy data processing and storage. In addition to real-time image processing and playback, it is a big advantage to require less radiation to obtain high resolution images.
  • the digital breast cancer diagnosis apparatus currently used has various problems as follows.
  • the existing digital X-ray breast cancer diagnosis device has a fixed detection area (detection area) of 18 * 24 or 24 * 30 size (in cm), depending on the size of the detector, and 18 * for Asian women diagnosis.
  • 24 types of detectors are mainly used, and 24 * 30 types are mainly used for the diagnosis of Western women.
  • the imaging area is divided into two shots.
  • X-rays are often irradiated to a wider area than the actual X-ray irradiation area, which is a result of unnecessarily excessive exposure of harmful X-rays. Leads to.
  • the breast should be compressed and fixed as much as possible in order to obtain good image quality. If the breast under pressure is larger than the detector area, the process cannot be taken with one compression and the pressure is released and recompressed. There was a hassle to repeat the shooting to take a picture, and the pain and psychological discomfort caused by the pressure to the patient did not finish the action at the same time had the disadvantage of repeating again.
  • the patient directly moves the body back so that the unshooted part can be photographed, and the breast is pressed again.
  • the second shot should be taken under pressure, so that the pain and discomfort did not end once, but had to feel repeatedly.
  • the patient had problems of primary compression and secondary compression, and accordingly, increased waiting time for diagnosing breast cancer, and as a practitioner, there was a problem of increased diagnosis time due to the aforementioned primary compression and secondary compression. there was.
  • a large-area detector can be used, but there is a limit to the increase in the size of the detector, the cost is very expensive for the large-area, and the breast size (the breast size stretched by pressure) exceeds the size of the large-area detector. The same problem as described above occurs.
  • the present invention is to solve the above-mentioned problems, and can cope with various breast sizes (breast size), in particular optimized for the diagnosis of breast cancer in fat women, more specifically in Asian women with a fat breast or small breast size after menopause Digital X-ray Breast Cancer Diagnosis Device that allows even the right amount of X-rays to be irradiated in response to the patient's chest size while minimizing the pain and psychological discomfort that the patient experiences
  • the purpose is to provide.
  • the X-ray generator for irradiating X-rays;
  • a collimator defining a radiation area of X-rays radiated from the X-ray generator;
  • a detector for detecting X-rays generated by the X-ray generator and penetrating the breast, the detector being movably installed to enable divisional imaging of the breast;
  • a breast fixation apparatus interposed between the collimator and the detector to fix the breast of the patient.
  • the apparatus provides a digital x-ray breast cancer diagnosis apparatus.
  • the device of the present invention is characterized in that the guide plate is further provided to enable the sliding movement of the detector.
  • the collimator has a function of adjusting the X-ray irradiation range in the horizontal direction by moving in the horizontal direction (horizontal arrow of Figure 8), but the horizontal blades installed so as to be movable independently of each other, and the vertical direction (Fig. (7 longitudinal arrows) to adjust the X-ray irradiation range in the longitudinal direction, but characterized in that it comprises a longitudinal blade that is installed to be movable independently of each other.
  • the breast cancer diagnostic apparatus is characterized in that the halogen lamp or X-ray irradiation field indicator for irradiating light to check the size of the patient before X-ray imaging is further mounted.
  • the digital x-ray breast cancer diagnostic method may further include checking the breast size to determine whether to take a split image.
  • X-rays are irradiated only to a minimum area suitable for the patient's chest size, thereby preventing unnecessary X-ray exposure, thereby contributing to the health promotion of the user who operates the patient and the breast diagnosis apparatus.
  • the X-ray breast cancer diagnosis apparatus of the present invention is a variable structure in which the X-ray irradiation range is adjusted according to the size of the patient's chest, X-rays are irradiated only to the actual X-ray irradiation area, thereby preventing excessive exposure of harmful X-rays to the patient and It effectively protects the device operator.
  • the X-ray breast cancer diagnosis apparatus of the present invention is optimized X-rays for Asian women, because the area of the detector (Detector) has a small area can minimize the harmful X-ray exposure when diagnosing breast cancer of Asian women, the average breast size is smaller than Western women on average It is possible to provide a breast cancer diagnosis apparatus.
  • the X-ray breast cancer diagnosis apparatus of the present invention can lower the price of the breast cancer diagnosis apparatus by miniaturizing a detector having a very high proportion of the price of the breast cancer diagnosis apparatus, thereby increasing the spread of the breast cancer diagnosis apparatus and the diagnosis of breast cancer diagnosis. Popularization can be achieved.
  • the X-ray breast cancer diagnostic apparatus of the present invention is optimized for the diagnosis of breast cancer in Asian women with relatively small breast size due to the small area of the detector (Detector), the mobility is given to the detector after women with large breasts or postmenopausal
  • the movement of the detector and the resulting splitting can minimize pain and mental discomfort, and can only diagnose a proper amount of X-rays in response to the patient's breast size. .
  • the X-ray breast cancer diagnosis apparatus of the present invention minimizes the pain and psychological discomfort that the patient receives when diagnosing the diagnosis, as the partial imaging is performed by moving only the detector without the patient's movement, even when performing partial imaging in a patient with a large chest. It is effective.
  • the X-ray breast cancer diagnosis apparatus of the present invention shows abnormalities after the basic imaging and needs to be retaken, since the X-ray irradiation range can be retaken only to a region where abnormalities are observed, the exposure amount due to re-imaging and the like is remarkably increased. It can be lowered.
  • the X-ray breast cancer diagnostic apparatus of the present invention when performing the segmentation imaging, the segmentation imaging is performed only by moving the detector without the movement of the patient. Therefore, unlike the conventional segmentation imaging, the diagnosis image data is easy to match. It is done correctly.
  • the setting of the X-ray irradiation area and the setting of the photographing method are automatically performed so that X-rays can be taken quickly and accurately, thereby reducing the time required for X-ray imaging, thereby improving the patient's medical environment. Effect.
  • the X-ray breast cancer diagnostic apparatus of the present invention is to move the detector only without the movement of the patient is split imaging is performed, it is possible to significantly reduce the time required for diagnosis compared to when adjusting the position of the existing patient while moving again There is.
  • FIG. 1 is a block diagram showing a breast cancer diagnosis apparatus using the X-ray of the present invention
  • FIGS. 2 (a) and 2 (b) show the X-ray irradiation range of the conventional fixed large area detector and the X-ray irradiation range of the variable small area detector of the present invention, which is based on a standard size breast of an oriental woman.
  • 3 (a) and 3 (b) show a comparison between a large-area imaging method using a large-area detector and a large-area imaging method by split imaging using a small-area detector of the diagnostic apparatus of the present invention when the chest is large;
  • FIG. 4 is a main part side view and an actual captured image sample showing the operation state of the diagnostic apparatus of the present invention in the divided shooting of FIG. 3 (b), (a) shows the X-ray irradiation range and the actual primary captured image, (b) shows the X-ray irradiation range and the actual secondary image in the second shot, (c) the integrated X-ray irradiation range and the final matched image of the first and second shot
  • FIG. 5 is a perspective view of main parts of a diagnostic apparatus corresponding to the states (a) and (b) of FIG. 4, respectively.
  • Figure 6 is a detailed perspective view showing the configuration of the X-ray irradiation range variable mechanism of the breast cancer diagnostic apparatus of the present invention
  • FIG. 7 is a plan view of the main portion of FIG. 6, and illustrates a configuration of a vertical X-ray irradiation range variable mechanism.
  • FIG. 8 is a bottom view of FIG. 7 illustrating a configuration of a horizontal X-ray irradiation range variable mechanism
  • FIG. 9 is a flowchart illustrating a method for diagnosing breast cancer of the present invention
  • FIG. 9 is a flowchart illustrating a diagnosis method when the breast size is within a small area detector photographing range in which segmentation is not required.
  • FIG. 10 is a flowchart showing a diagnosis method when the breast size is out of the shooting range of the small-area detector of the present invention.
  • FIG. 11 is a real picture showing an example of the synthesis of the divided images for the diagnosis of breast cancer according to the present invention
  • FIG. 11 shows an acquired image before moving a detector.
  • FIG. 11 shows an acquired image after moving the detector.
  • FIGS. 1 to 11 a digital x-ray breast cancer diagnosis apparatus and diagnostic method of the present invention will be described in detail with reference to FIGS. 1 to 11.
  • the small area means that the detector of the present invention is a relatively small area compared to the existing known detector size.
  • FIG. 1 illustrates a schematic configuration of a breast cancer diagnosis apparatus 100 using X-rays according to an embodiment of the present invention.
  • the X-ray generator 110 for irradiating X-rays (X-rays), and the collimator (collimator) for limiting the irradiation region of the X-rays irradiated from the X-ray (X-ray) generator 110;
  • a detector 150 which detects X-rays generated by the X-ray generator and penetrates the breast B, and is installed to be movable so that split imaging of the breast B is possible, and the collimator 120.
  • a breast fixation device 130 interposed between the detector 150 and the breast B of the patient.
  • the present invention further comprises a guide plate 160 to enable the sliding movement of the detector 150, the guide plate 160 is provided with a guide means for guiding the linear movement of the detector 150.
  • the collimator 120 may adjust the irradiation range of X-rays, and as shown in FIG. 7, the collimator 120 adjusts the X-ray irradiation range in the vertical direction by moving in the vertical direction (see the moving direction of the detector and the vertical arrow).
  • Vertical blades (122a, 122b) are installed so as to be movable independently of each other, and move in the horizontal direction (see the left and right width direction of the breast, see the horizontal arrow) as shown in Figure 8 in the horizontal direction It functions to adjust the X-ray irradiation range of the horizontal blades 121a and 121b which are installed to be movable independently of each other.
  • the collimator 120 is configured to include the longitudinal blades 122a and 122b, and further includes the transverse blades 121a and 121b in addition to the longitudinal blades 122a and 122b. It is good to prevent unnecessary X-ray exposure to the operator or the patient by minimizing the X-ray irradiation area.
  • the irradiation range adjustment means adjustment of at least one of the irradiation area and the irradiation position.
  • the X-ray generator 110 in particular, the position as close as possible to the X-ray exit, an illumination light source (X-ray irradiation field indicator) for irradiating light to check the size of the patient before X-ray imaging, for example halogen lamp 170 Is mounted, and the irradiation range of the halogen lamp 170 is also adjusted by the combination of the longitudinal blades 121a and 121b and the longitudinal blades 122a and 122b of the collimator 120.
  • an illumination light source X-ray irradiation field indicator
  • the collimator 120 is also used to adjust the irradiation area of the halogen lamp 170 as an illumination light source.
  • the illumination light source that is, the X-ray irradiation field indicator may be used to check the chest size and compare the chest size and the detector size to determine whether to take a segmentation
  • the type of the illumination light source is not limited to the halogen lamp.
  • the breast fixing device 130 is a device for compressing and fixing the breast B of the patient on both sides so as to be perpendicular to the direction of emitting X-rays, and generally, a support plate 132 is installed below and above.
  • the pressure plate 131 is installed to be elevated, and the pressure plate 131 is lowered toward the support plate 132 to compress and fix the breast B.
  • a transparent plate may be illustrated.
  • the grid may be disposed below the support plate 132 to block scattering lines.
  • Each of the two horizontal blades 121a and 121b includes drive motors 123a and 123b for providing a driving force to the blades, and a horizontal linear guide for guiding linear movement of the horizontal blades 121a and 121b. 125a, 125b).
  • each of the two longitudinal blades 122a and 122b includes drive motors 124a and 124b for providing a driving force to the blades and a longitudinal direction for guiding linear movement of each of the two longitudinal blades 122a and 122b.
  • Linear guides 126a and 126b are provided.
  • the two horizontal blades 121a and 121b and the two longitudinal blades 122a and 122b may move independently of each other regardless of the movement of the counter blades under the control of a driving motor independently connected to each other. .
  • 6 and 8 illustrate a power transmission mechanism using a belt 129 between two horizontal blades 121a and 121b and horizontal driving motors 123a and 123b.
  • the present invention is not limited thereto, and other known power transmission mechanisms may be applied.
  • reference numeral 140 of FIG. 1 is a rotating body for rotating a diagnostic apparatus such as an X-ray generator 110.
  • FIG. 9 and 10 are flowcharts illustrating a method for diagnosing breast cancer of the present invention
  • FIG. 9 is a flowchart illustrating a diagnosis method when the breast size is within a small-area detector photographing range requiring no segmentation imaging
  • FIG. This is a flowchart showing the diagnosis method when the chest size is out of the area detector's shooting range.
  • the breast B of the patient to be diagnosed with breast cancer is fixed to the breast fixation device 130 by pressing, and the breast size of the patient is confirmed prior to X-ray imaging, more specifically, segmental imaging. To determine whether or not to compare the chest size of the patient and the size of the detector is performed.
  • the chest size is measured by using a halogen lamp 170, by adjusting the area of the light of the halogen lamp 170 with the collimator 120 to adjust the irradiation area of the light to the size of the detector 150 of the patient's chest You can check the size.
  • the collimator is adjusted so that the entire breast under pressure is illuminated by the halogen lamp, and the size of the halogen lamp lighting area and the size of the detector are derived by deriving the size of the halogen lamp lighting area based on the open area of the collimator. By comparing, the patient's chest size can be checked automatically.
  • the diagnosis image acquisition method is changed according to the confirmed chest size of the patient.
  • the X-ray irradiation range After adjusting to the chest size of the patient, a small area image is obtained by photographing (see FIG. 9).
  • the diagnostic image is obtained by photographing without moving the detector 150.
  • the present invention provides a variable small-area detector 150 that can adjust the X-ray irradiation range.
  • X-ray irradiation area can be minimized (see (b) of FIG. 2), so that X-rays are irradiated only to the minimum area suitable for the patient's chest size, thereby preventing unnecessary X-ray exposure of the patient and the diagnostic apparatus operator. Minimize your health impact.
  • the diagnostic image is obtained as follows (see FIG. 10).
  • the X-ray irradiation range is first adjusted, and then primary imaging is performed. At this time, there is no movement of the detector 150 for detecting X-rays (see FIGS. 4A and 5A).
  • the detector 150 for detecting the X-rays is moved to the secondary imaging position that covers the non-photography region.
  • the detector 150 moves by receiving a driving force of a driving source (not shown) and moves toward the main frame 180 according to the guide action of the guide plate 160.
  • the second adjustment of the X-ray irradiation range is performed.
  • the secondary imaging is performed by irradiating the X-ray (FIG. b) and (b) of FIG. 5).
  • the first photographing image is acquired in the first photographing
  • the second photographing image is obtained in the second photographing
  • the high quality image is obtained by stitching the first photographing image and the second photographing image. Done.
  • FIG. 11 is a reference picture showing an actual synthesis example of a segmented image in breast cancer diagnosis according to the present invention.
  • FIG. 11 (a) is an image obtained before moving the detector 150 (that is, a primary image).
  • 11 (b) shows the acquired image after moving the detector 150 (that is, the secondary photographed image), and
  • FIG. 11 (c) shows the synthesized image before and after the moving of the detector 150. This is the final image acquired.
  • FIGS. 11A and 11B are photographed in the X-ray low exposure state and X-ray high exposure state at each imaging stage in segmented photographing, and the captured images are fused to obtain a composite image (final image). As a result, each obtained multi-exposure image is stitched to obtain a high quality final synthesized image as shown in FIG.
  • the present invention enables to adjust the X-ray irradiation range through the collimator 120 and to allow the detector 150 to be slidable, so that the small-area detector 150 optimized for the breast size of the oriental woman is provided. While being applied, the small area detector 150 can be applied to a large breast size in which some breast sizes exceed the one-shot range by providing mobility, thereby reducing unnecessary exposure when diagnosing breast cancer. In addition to contributing to the improvement of health, it is possible to improve diagnosis time and efficiency, and to reduce the manufacturing cost of the breast cancer diagnosis apparatus 100 by reducing the size of the detector.
  • the present invention enables the acquisition of large-scale high-quality diagnostic images through multi-shooting by a movable detector while using a small-area detector, which is not only suitable for Asian women's breast size but also effectively applied to Western women with large breasts. It is optimized for the diagnosis of breast cancer, and by miniaturizing the detector, which has a large proportion in the device price of the breast cancer diagnosis apparatus, the price can be lowered and contribute to the popularization of the breast cancer diagnosis apparatus, and thus the invention is highly applicable to the industry.

Abstract

The present invention may be applied to various bust sizes (breast sizes), and particularly, may be optimized to diagnose breast cancer in fatty breasts occurring after menopause or the small-sized breasts of Asian women. On the other hand, although sectional photography is needed in some cases for large-sized breasts, the pain of pressure and the emotional stress of patients may be minimized and only the amount of X-rays appropriate for the size of the breast may be irradiated. To this end, the present invention provides a digital X-ray apparatus for diagnosing breast cancer and a diagnosis method. The apparatus includes an X-ray generator irradiating X-rays, a collimator controlling the irradiation region of the X-rays irradiated by the X-ray generator, a detector including a digital sensor detecting the X-rays generated by the X-ray generator which penetrate the breast and which is installed to be movable to enable sectional photography of the breast, and a breast fixing device disposed between the collimator and the detector to fix the breast of a patient.

Description

[규칙 제26조에 의한 보정 10.08.2012] 디지털 엑스선 유방암 진단장치 및 진단 방법[Correction by rule 26.10.08.2012] digital X-ray breast cancer diagnosis apparatus and diagnosis method
본 발명은 유방암 진단장치에 관한 것으로서, 더욱 상세하게는 다양한 유방크기에 대응할 수 있고, 특히 폐경기 이후의 유방과 같은 지방형 유방이나 동양 여성의 유방암 진단에 최적화된 디지털 엑스선 유방암 진단장치에 관한 것이다.The present invention relates to a breast cancer diagnosis apparatus, and more particularly, to a digital x-ray breast cancer diagnosis apparatus that can cope with various breast sizes, and is particularly optimized for the diagnosis of breast cancer of a fat-type breast such as breast after menopause or Asian women.
일반적으로, 유방에 생긴 암세포로 이루어진 종괴를 의미하는 유방 선암 또는 유방암은 여성에게 중요한 의학적인 문제인데, 이러한 유방암은 여성의 사망률을 높이는 주요 원인일 뿐만 아니라 장애, 심리적 충격 및 경제적 손실의 원인이 된다.In general, breast adenocarcinoma or breast cancer, which refers to a mass of cancerous cells in the breast, is an important medical problem for women, which is not only a major cause of mortality in women, but also causes disability, psychological shock, and economic loss. .
따라서, 유방암에 걸리지 않도록 예방에 최선을 다해야 할 뿐만 아니라 조기에 발견할 수 있도록 주기적인 진단이 필요하다.Therefore, not only should we do our best to prevent breast cancer, but we also need periodic diagnosis to detect it early.
이러한 진단을 위해 엑스선(X-선)을 이용한 유방암 진단 시스템이 개발되었는데, 종래에는 아날로그 필름 방식이 사용되었으나 최근에는 아날로그 필름 방식을 대신하여 aSi-TFT, aSe-TFT 디텍터(Detector)와 같은 반도체 평판 디텍터, CCD 등의 디지털 디텍터(Digital Detector)를 이용한 디지털 방식이 유방암 진단에 많이 활용되고 있다. For this diagnosis, a breast cancer diagnosis system using X-rays (X-rays) has been developed. In the past, an analog film method was used, but recently, a semiconductor flat plate such as aSi-TFT and aSe-TFT detector (Detector) is used instead of the analog film method. Digital methods using digital detectors such as detectors and CCDs are widely used for breast cancer diagnosis.
반도체 평판 디텍터(이하, '디텍터'라 한다)를 사용하는 디지털 방식의 유방암 진단 시스템의 경우 종래의 아날로그 필름을 이용한 촬영장치와 비교하여 높은 해상도, 넓은 동적 영역(dynamic range), 높은 전기적 신호의 생성, 손쉬운 데이터 처리 및 저장 등의 장점을 가진다. 또한 실시간 영상처리 및 재생이 가능할 뿐만 아니라 고해상도의 영상을 획득하는 데 더 적은 양의 방사선을 필요로 한다는 것은 매우 큰 장점이다.Digital breast cancer diagnosis system using a semiconductor flat panel detector (hereinafter referred to as a 'detector') generates a higher resolution, a wider dynamic range, and a higher electrical signal compared to a conventional analog film photographing apparatus. It has advantages such as easy data processing and storage. In addition to real-time image processing and playback, it is a big advantage to require less radiation to obtain high resolution images.
그러나, 상기의 장점에도 불구 현재 사용되고 있는 디지털 방식의 유방암 진단장치는 다음과 같이 여러 가지 문제점을 안고 있는 실정이다.However, despite the above advantages, the digital breast cancer diagnosis apparatus currently used has various problems as follows.
먼저, 기존의 디지털 엑스선 유방암 진단장치는 디텍터(detector)의 크기에 따라 조사영역(감지영역)이 18*24 또는 24*30 크기(단위; cm)로 고정되어 있으며, 동양 여성 진단용으로는 18*24형태의 디텍터가 주로 이용되고, 24*30형태는 서양여성 진단용으로 주로 사용된다. 그러나 동양여성의 경우 40대 즉 폐경기가 되면 유방은 지방형 유방으로 변하게 되고, 유방 촬영을 위한 압박시 압박된 유방의 크기가 디텍터 18*24영역을 초과하게 된다. 이런 경우 종래의 유방암진단기에서는 촬영 영역을 나누어 두 번의 촬영을 하게 된다.First, the existing digital X-ray breast cancer diagnosis device has a fixed detection area (detection area) of 18 * 24 or 24 * 30 size (in cm), depending on the size of the detector, and 18 * for Asian women diagnosis. 24 types of detectors are mainly used, and 24 * 30 types are mainly used for the diagnosis of Western women. However, in Asian women, when they are in their 40s or menopause, their breasts turn into fat-type breasts, and the size of the breasts compressed during breast imaging exceeds the detector 18 * 24 area. In this case, in the conventional breast cancer diagnosis apparatus, the imaging area is divided into two shots.
따라서 환자(즉, 피검사자)의 가슴크기에 맞추어 조사 영역이 조정되지 못하는 고정 구조이므로, 실제 필요한 엑스선 조사 영역보다 더 넓은 영역으로 엑스선이 조사되는 경우가 많으며, 이는 유해한 엑스선이 불필요하게 과다 피폭되는 결과로 연결된다.Therefore, since the irradiation area cannot be adjusted according to the chest size of the patient (ie, the examinee), X-rays are often irradiated to a wider area than the actual X-ray irradiation area, which is a result of unnecessarily excessive exposure of harmful X-rays. Leads to.
그리고, 위에서 서술된 중복촬영 기법은 1차, 2차 촬영에 있어 각각의 정확한 영역의 구분이 어려워 중복되는 영역이 많아 상대적인 피폭량이 많아 질 수밖에 없다.In addition, in the above-described overlapping imaging technique, it is difficult to distinguish each of the precise regions in the first and second shots, so that there are many overlapping regions, so that the relative exposure amount has to be increased.
참고로, 엑스선의 조사량이 많으면 많을수록 인체에 유해할 뿐만 아니라 촬영으로 인한 또 다른 암의 발생을 초래할 수 있어 그 사용이 매우 조심스러워야 하며, 엑스선 진단 촬영시에는 가능한 최소의 선량으로 최적의 영상을 얻는 것이 바람직하다.For reference, the higher the amount of X-ray radiation, the more harmful it is to the human body, and it may cause other cancers caused by the imaging. Therefore, the use of the X-ray should be very careful. It is preferable.
한편, 기존의 디지털 엑스선 유방암 진단장치는 일부 가슴이 큰 환자의 경우에는 가슴크기가 디텍터 영역을 초과하게 되어 한 번에 촬영을 끝내는 것이 불가능하여 복수회 분할 촬영을 수행하게 된다.On the other hand, in the existing digital X-ray breast cancer diagnosis apparatus, some patients with large breasts have a chest size that exceeds the detector area, so that it is impossible to finish the imaging at one time.
이에 따라 기존의 디지털 엑스선 유방암 진단장치에서는 디텍터 영역을 초과하는 크기의 가슴 진단시에 다음과 같은 문제들이 수반되었다.Accordingly, in the conventional digital X-ray breast cancer diagnosis apparatus, the following problems were involved in diagnosing a breast exceeding the detector area.
먼저, 시술자의 입장에서 보면, 좋은 영상품질을 얻기 위해 유방을 최대한 압박하여 고정해야 하는데, 압박상태의 가슴이 디텍터 영역보다 큰 경우에는 한번의 압박으로 촬영이 이루어지지 못하고 압박을 풀고 재압박하는 과정을 반복하여 촬영을 수행해야 하는 번거로움이 있고, 환자에게 압박으로 인한 고통과 심리적 불쾌감을 주는 행위를 한번에 끝내지 못하고 다시 반복하게 하는 단점이 있었다.First, from the point of view of the operator, the breast should be compressed and fixed as much as possible in order to obtain good image quality. If the breast under pressure is larger than the detector area, the process cannot be taken with one compression and the pressure is released and recompressed. There was a hassle to repeat the shooting to take a picture, and the pain and psychological discomfort caused by the pressure to the patient did not finish the action at the same time had the disadvantage of repeating again.
즉, 환자의 입장에서 보면 압박유지 상태에서 1차 촬영을 한 다음에 압박이 풀리면 환자 본인이 직접 몸을 뒤로 이동시켜서 촬영이 미처 안 된 부분이 촬영될 수 있도록 자세를 잡은 다음, 다시 유방을 압박하고 압박 유지 상태에서 2차 촬영을 해야하므로 고통과 불편함을 한번으로 끝내지 못하고 반복해서 느껴야 하는 단점이 있었다.That is, from the patient's point of view, after the first shot is taken under pressure and the pressure is released, the patient directly moves the body back so that the unshooted part can be photographed, and the breast is pressed again. And the second shot should be taken under pressure, so that the pain and discomfort did not end once, but had to feel repeatedly.
다음으로, 분할 촬영을 위해서는 고정된 디텍터에 맞추어 환자가 직접 움직여서 다시 자세를 잡음에 따라 1차 촬영시의 압박 유지 상태와 2차 촬영시의 압박 유지 상태에서의 자세가 동일한 상태를 유지하기 어려우며, 이에 따라 분할 촬영된 데이터를 정합(整合)하는데 어려움을 겪게 되는 단점이 있었다.Next, for split shooting, the patient moves directly to the fixed detector so that it is difficult to maintain the same posture in the compression holding state at the first shot and the compression holding state at the second shot according to the noise. Accordingly, there is a disadvantage in that it is difficult to match the divided photographed data.
그 다음으로, 환자로서는 유방암 진단을 위한 1차 압박 및 2차 압박, 그리고 이에 따른 촬영 대기시간 증가의 문제가 있었으며, 시술자로서도 앞서 언급한 1차 압박 및 2차 압박 등에 따른 진단시간 증가의 문제점이 있었다. 이를 해결하기 위하여 대면적의 디텍터를 사용할 수도 있으나, 디텍터의 크기 증가에는 한계가 있고 대면적의 경우 비용이 매우 비싸며, 유방크기(압박에 의해 펴진 유방크기)가 대면적 디텍터의 크기를 초과하는 경우에는 전술한 동일한 문제가 발생된다.Next, the patient had problems of primary compression and secondary compression, and accordingly, increased waiting time for diagnosing breast cancer, and as a practitioner, there was a problem of increased diagnosis time due to the aforementioned primary compression and secondary compression. there was. In order to solve this problem, a large-area detector can be used, but there is a limit to the increase in the size of the detector, the cost is very expensive for the large-area, and the breast size (the breast size stretched by pressure) exceeds the size of the large-area detector. The same problem as described above occurs.
따라서, 동양 및 서양 여성의 다양한 유방크기에 대응하여 유해한 엑스선이 불필요하게 과다 피폭되는 현상이 발생하지 않도록 하면서, 특히 가슴크기가 커서 분할 촬영이 요구되는 경우에도 환자가 겪는 압박의 고통 및 심적 불편함을 1회로 최소화하면서 환자의 가슴크기에 대응하여 알맞은 양의 엑스선만 조사될 수 있는 유방암 진단에 최적화된 디지털 엑스선 유방암 진단장치의 개발이 시급한 실정이다.Therefore, in order to prevent unnecessarily overexposure of harmful X-rays in response to various breast sizes of oriental and western women, the pain and psychological discomfort that the patient suffers even when the split size is required due to the large breast size is required. It is urgent to develop a digital X-ray breast cancer diagnosis apparatus optimized for breast cancer diagnosis in which only an appropriate amount of X-rays can be irradiated in response to the patient's chest size while minimizing the number of times.
본 발명은 상기한 제반 문제점을 해결하기 위한 것으로서, 다양한 가슴크기(유방크기)에 대응할 수 있고, 특히 지방형 유방, 보다 상세하게는 폐경기 이후의 지방형 유방이나 가슴크기가 작은 동양 여성의 유방암 진단에 최적화되는 한편, 가슴크기가 커서 분할 촬영을 해야할 경우라 할지라도 환자가 겪는 압박의 고통 및 심적 불편함을 최소화하면서 환자의 가슴크기에 대응하여 알맞은 양의 엑스선만 조사될 수 있도록 한 디지털 엑스선 유방암 진단장치를 제공하는데 그 목적이 있다.The present invention is to solve the above-mentioned problems, and can cope with various breast sizes (breast size), in particular optimized for the diagnosis of breast cancer in fat women, more specifically in Asian women with a fat breast or small breast size after menopause Digital X-ray Breast Cancer Diagnosis Device that allows even the right amount of X-rays to be irradiated in response to the patient's chest size while minimizing the pain and psychological discomfort that the patient experiences The purpose is to provide.
상기한 목적을 달성하기 위해, 본 발명은, 엑스선을 조사하는 엑스선 발생기와; 상기 엑스선(X-ray) 발생기에서 조사되는 엑스선의 조사 영역을 한정하는 콜리메이터(collimator)와; 상기 엑스선 발생기에서 발생되어 유방을 투과한 엑스선을 검출하는 디지털 센서가 구비되며 유방의 분할 촬영이 가능해지도록 이동 가능하게 설치되는 디텍터와; 상기 콜리메이터와 상기 디텍터 사이에 개재되어 환자의 유방을 고정하는 유방고정장치;를 포함하여 구성되는 것을 특징으로 하는 디지털 엑스선 유방암 진단장치가 제공된다.In order to achieve the above object, the present invention, the X-ray generator for irradiating X-rays; A collimator defining a radiation area of X-rays radiated from the X-ray generator; A detector for detecting X-rays generated by the X-ray generator and penetrating the breast, the detector being movably installed to enable divisional imaging of the breast; And a breast fixation apparatus interposed between the collimator and the detector to fix the breast of the patient. The apparatus provides a digital x-ray breast cancer diagnosis apparatus.
이때, 본 발명 장치는 상기 디텍터의 슬라이딩 이동이 가능하도록 하는 가이드 플레이트가 더 구비됨을 특징으로 한다.At this time, the device of the present invention is characterized in that the guide plate is further provided to enable the sliding movement of the detector.
그리고, 상기 콜리메이터는, 가로방향(도 8의 가로방향 화살표)으로 이동하여 가로방향에 있어서의 엑스선 조사범위를 조절하는 기능을 하되 각각 독립적으로 이동가능하도록 설치되는 가로방향 블레이드와, 세로방향(도 7의 세로방향 화살표)으로 이동하여 세로방향에 있어서의 엑스선 조사범위를 조절하는 기능을 하되 각각 독립적으로 이동가능하도록 설치되는 세로방향 블레이드를 포함하여 구성됨을 특징으로 한다.In addition, the collimator has a function of adjusting the X-ray irradiation range in the horizontal direction by moving in the horizontal direction (horizontal arrow of Figure 8), but the horizontal blades installed so as to be movable independently of each other, and the vertical direction (Fig. (7 longitudinal arrows) to adjust the X-ray irradiation range in the longitudinal direction, but characterized in that it comprises a longitudinal blade that is installed to be movable independently of each other.
한편, 본 발명에 따른 유방암 진단장치에는 엑스선 촬영 전에 환자의 가슴크기를 확인하기 위해 빛을 조사하는 할로겐램프 또는 엑스선 조사야 표시기가 더 장착됨을 특징으로 한다.On the other hand, the breast cancer diagnostic apparatus according to the present invention is characterized in that the halogen lamp or X-ray irradiation field indicator for irradiating light to check the size of the patient before X-ray imaging is further mounted.
상기한 목적을 달성하기 위한 본 발명의 다른 형태에 따르면, 압박된 가슴크기가 디텍터의 1회 최대촬영면적을 초과할 경우, 엑스선 조사범위를 1차 조정하는 단계; 엑스선을 조사하여 1차 촬영을 행하는 단계; 엑스선을 검출하는 디텍터를 2차 촬영 위치로 이동시키는 단계; 엑스선 조사범위를 2차 조정하는 단계; 엑스선을 조사하여 2차 촬영을 행하는 단계; 그리고 1차 촬영 영상 및 2차 촬영 영상을 합성(stitching)하여 대면적 영상을 획득하는 단계를 포함하는 것을 특징으로 하는 디지털 엑스선 유방암 진단방법을 제공한다.According to another aspect of the present invention for achieving the above object, the step of first adjusting the X-ray irradiation range, if the compressed chest size exceeds the one-time maximum imaging area of the detector; Radiating X-rays to perform primary imaging; Moving the detector for detecting X-rays to a secondary imaging position; Secondly adjusting the X-ray irradiation range; Irradiating X-rays to perform secondary imaging; And it provides a method for diagnosing digital x-ray breast cancer comprising the step of obtaining a large-area image by stitching the primary image and the secondary image.
상기 디지털 엑스선 유방암 진단방법은; 분할 촬영여부의 확인을 위해 상기 가슴크기를 확인하는 단계를 더 포함할 수도 있다.The digital x-ray breast cancer diagnostic method; The method may further include checking the breast size to determine whether to take a split image.
전술한 구성에 있어서, 환자의 가슴크기 확인 단계 수행시, 가슴크기가 디텍터의 1회 최대촬영면적 이내일 경우에는, 엑스선 조사범위를 조정하고 촬영을 행하여 소면적 영상을 획득하게 되는 것을 특징으로 하는 디지털 엑스선 유방암 진단방법이 제공된다.In the above-described configuration, when performing the chest size check step of the patient, if the chest size is within the maximum maximum imaging area of the detector, the X-ray irradiation range is adjusted and the imaging is performed to obtain a small area image. Digital X-ray breast cancer diagnostic method is provided.
본 발명에 따르면, 환자의 가슴크기에 알맞은 최소 영역에만 엑스선이 조사되도록 함으로써, 불필요한 엑스선 피폭을 방지하여 환자 및 유방진단장치를 조작하는 사용자의 건강 증진에 기여하게 된다.According to the present invention, X-rays are irradiated only to a minimum area suitable for the patient's chest size, thereby preventing unnecessary X-ray exposure, thereby contributing to the health promotion of the user who operates the patient and the breast diagnosis apparatus.
즉, 본 발명의 엑스선 유방암 진단장치는 환자의 가슴크기에 맞추어 엑스선 조사 범위가 조정되는 가변형 구조이므로, 실제 필요한 엑스선 조사 영역에만 엑스선이 조사되어, 유해한 엑스선이 과다하게 피폭되는 현상을 방지함으로써 환자 및 장치 조작자를 효과적으로 보호하게 된다.That is, since the X-ray breast cancer diagnosis apparatus of the present invention is a variable structure in which the X-ray irradiation range is adjusted according to the size of the patient's chest, X-rays are irradiated only to the actual X-ray irradiation area, thereby preventing excessive exposure of harmful X-rays to the patient and It effectively protects the device operator.
또한, 본 발명의 엑스선 유방암 진단장치는 디텍터(Detector)의 면적이 소면적화되어 가슴 크기가 평균적으로 서양 여성에 비해 작은 동양 여성의 유방암 진단시 유해한 엑스선 피폭량을 최소화할 수 있으므로 동양 여성에게 최적화된 엑스선 유방암 진단장치를 제공할 수 있게 된다. In addition, the X-ray breast cancer diagnosis apparatus of the present invention is optimized X-rays for Asian women, because the area of the detector (Detector) has a small area can minimize the harmful X-ray exposure when diagnosing breast cancer of Asian women, the average breast size is smaller than Western women on average It is possible to provide a breast cancer diagnosis apparatus.
그리고, 본 발명의 엑스선 유방암 진단장치는, 유방암 진단장치 가격에서 차지하는 가격 비중이 매우 높은 디텍터(Detector)를 소형화함으로 인해 유방암 진단장치의 가격을 낮출 수 있어, 유방암 진단장치의 보급 확대 및 유방암 진단의 대중화를 도모할 수 있다.In addition, the X-ray breast cancer diagnosis apparatus of the present invention can lower the price of the breast cancer diagnosis apparatus by miniaturizing a detector having a very high proportion of the price of the breast cancer diagnosis apparatus, thereby increasing the spread of the breast cancer diagnosis apparatus and the diagnosis of breast cancer diagnosis. Popularization can be achieved.
한편, 본 발명의 엑스선 유방암 진단장치는 디텍터(Detector)의 면적이 소면적화되어 가슴 크기가 상대적으로 작은 동양 여성의 유방암 진단에 최적화됨에도 불구, 디텍터에 이동성이 부여됨으로써 가슴 크기가 큰 여성이나 폐경기 이후의 지방형 유방의 여성의 진단시에 디텍터의 이동 및 이에 따른 분할 촬영을 통해 고통 및 심적 불편함을 최소화할 수 있으며, 환자의 가슴크기에 대응하여 알맞은 양의 엑스선만을 조사하여 진단을 할 수 있게 된다.On the other hand, the X-ray breast cancer diagnostic apparatus of the present invention is optimized for the diagnosis of breast cancer in Asian women with relatively small breast size due to the small area of the detector (Detector), the mobility is given to the detector after women with large breasts or postmenopausal In the diagnosis of a woman's fat breast, the movement of the detector and the resulting splitting can minimize pain and mental discomfort, and can only diagnose a proper amount of X-rays in response to the patient's breast size. .
즉, 본 발명의 엑스선 유방암 진단장치는 일부 가슴이 큰 환자의 경우에 분할 촬영을 수행하더라도, 환자의 움직임 없이 디텍터만 이동하여 분할 촬영이 이루어짐에 따라, 진단시 환자가 받는 고통과 심리적 불쾌감을 최소화하는 효과가 있다.That is, the X-ray breast cancer diagnosis apparatus of the present invention minimizes the pain and psychological discomfort that the patient receives when diagnosing the diagnosis, as the partial imaging is performed by moving only the detector without the patient's movement, even when performing partial imaging in a patient with a large chest. It is effective.
그리고, 본 발명의 엑스선 유방암 진단장치는, 기본 촬영 후 이상 소견이 보여 재촬영이 필요할 경우, 엑스선 조사 범위를 이상 소견이 보이는 해당 부위에 한정하여 재촬영할 수 있으므로, 재촬영 등으로 인한 피폭량도 현저히 낮출 수 있는 효과가 있다.In addition, when the X-ray breast cancer diagnosis apparatus of the present invention shows abnormalities after the basic imaging and needs to be retaken, since the X-ray irradiation range can be retaken only to a region where abnormalities are observed, the exposure amount due to re-imaging and the like is remarkably increased. It can be lowered.
이와 더불어, 본 발명의 엑스선 유방암 진단장치는 분할 촬영 수행시에 환자의 움직임 없이 디텍터의 이동만으로 분할 촬영이 이루어지게 됨에 따라, 분할 촬영에도 불구 기존과는 달리 진단 영상 데이터의 정합(整合)이 쉽고 정확하게 이루어지게 된다.In addition, the X-ray breast cancer diagnostic apparatus of the present invention, when performing the segmentation imaging, the segmentation imaging is performed only by moving the detector without the movement of the patient. Therefore, unlike the conventional segmentation imaging, the diagnosis image data is easy to match. It is done correctly.
또한, 본 발명에 따르면, 유방암 진단시 유방 크기에 맞추어 최소한의 조사 영역에만 엑스선만이 조사되어 엑스선의 산란 현상이 줄어들게 되므로, 엑스선 촬영 영상의 품질이 향상된다.In addition, according to the present invention, since only X-rays are irradiated to a minimum irradiated area according to the breast size when diagnosing breast cancer, scattering of X-rays is reduced, and thus the quality of X-ray imaging images is improved.
한편, 본 발명에 따르면, 엑스선 조사 영역의 설정 및 촬영 방법의 설정이 자동적으로 수행되어 신속하고 정확하게 엑스선을 촬영할 수 있게 되므로, 엑스선 촬영에 소요되는 시간을 절약할 수 있게 되어 환자의 진료 환경이 개선되는 효과를 나타내게 된다.Meanwhile, according to the present invention, the setting of the X-ray irradiation area and the setting of the photographing method are automatically performed so that X-rays can be taken quickly and accurately, thereby reducing the time required for X-ray imaging, thereby improving the patient's medical environment. Effect.
또한, 본 발명의 엑스선 유방암 진단장치는 환자의 움직임 없이 디텍터만 이동하여 분할 촬영이 이루어짐에 따라, 기존의 환자가 움직여가면서 촬영 위치를 다시 조정할 때에 비해서 현저히 진단에 소요되는 시간을 줄일 수 있게 되는 효과가 있다.In addition, the X-ray breast cancer diagnostic apparatus of the present invention is to move the detector only without the movement of the patient is split imaging is performed, it is possible to significantly reduce the time required for diagnosis compared to when adjusting the position of the existing patient while moving again There is.
도 1은 본 발명의 엑스선을 이용한 유방암 진단장치를 나타낸 구성도1 is a block diagram showing a breast cancer diagnosis apparatus using the X-ray of the present invention
도 2의 (a) 및 (b)는 기존의 고정형 대면적 디텍터의 엑스선 조사영역과 본 발명의 가변형 소면적 디텍터의 엑스선 조사범위를 비교하여 나타낸 것으로서, 동양 여성의 표준 사이즈의 가슴을 기준으로 했을 때의 엑스선 조사범위 비교도2 (a) and 2 (b) show the X-ray irradiation range of the conventional fixed large area detector and the X-ray irradiation range of the variable small area detector of the present invention, which is based on a standard size breast of an oriental woman. X-ray irradiation range comparison chart
도 3의 (a) 및 (b)는 가슴이 큰 경우에 있어서, 기존의 대면적 디텍터에 의한 촬영 방법과 본 발명 진단장치의 소면적 디텍터를 이용한 분할 촬영에 의한 대면적 촬영 방법을 비교하여 나타낸 개념도3 (a) and 3 (b) show a comparison between a large-area imaging method using a large-area detector and a large-area imaging method by split imaging using a small-area detector of the diagnostic apparatus of the present invention when the chest is large; Conceptual diagram
도 4는 도 3의 (b)의 분할 촬영시의 본 발명의 진단장치 동작 상태를 보여주는 요부 측면도 및 실제 촬영 영상 샘플로서, (a)는 1차 촬영시 엑스선 조사범위와 실제 1차 촬영 영상, (b)는 2차 촬영시 엑스선 조사범위와 실제 2차 촬영 영상, (c)는 1차 및 2차 촬영의 통합된 촬영 엑스선 조사범위 및 최종 정합된 촬영 영상4 is a main part side view and an actual captured image sample showing the operation state of the diagnostic apparatus of the present invention in the divided shooting of FIG. 3 (b), (a) shows the X-ray irradiation range and the actual primary captured image, (b) shows the X-ray irradiation range and the actual secondary image in the second shot, (c) the integrated X-ray irradiation range and the final matched image of the first and second shot
도 5는 도 4의 (a) 및 (b) 상태에 각각 대응하는 진단장치 요부 사시도5 is a perspective view of main parts of a diagnostic apparatus corresponding to the states (a) and (b) of FIG. 4, respectively.
도 6은 본 발명의 유방암 진단장치의 엑스선 조사범위 가변기구의 구성을 보여주는 상세 사시도Figure 6 is a detailed perspective view showing the configuration of the X-ray irradiation range variable mechanism of the breast cancer diagnostic apparatus of the present invention
도 7은 도 6의 요부 평면도로서, 세로방향 엑스선 조사범위 가변기구 구성을 설명하기 위한 도면FIG. 7 is a plan view of the main portion of FIG. 6, and illustrates a configuration of a vertical X-ray irradiation range variable mechanism. FIG.
도 8은 도 7의 저면도로서, 가로방향 엑스선 조사범위 가변기구 구성을 설명하기 위한 도면FIG. 8 is a bottom view of FIG. 7 illustrating a configuration of a horizontal X-ray irradiation range variable mechanism; FIG.
도 9는 본 발명의 유방암 진단방법을 나타낸 흐름도로서, 도 9는 분할촬영이 필요없는 소면적 디텍터 촬영 범위 내의 가슴크기 일 때의 진단방법을 보여주는 흐름도9 is a flowchart illustrating a method for diagnosing breast cancer of the present invention, and FIG. 9 is a flowchart illustrating a diagnosis method when the breast size is within a small area detector photographing range in which segmentation is not required.
도 10은 본 발명의 소면적 디텍터의 촬영 범위를 벗어나는 가슴크기 일 때의 진단방법을 보여주는 흐름도 10 is a flowchart showing a diagnosis method when the breast size is out of the shooting range of the small-area detector of the present invention.
도 11은 본 발명에 따른 유방암 진단을 위한 분할 촬영 영상의 합성 예를 나타낸 실제 사진으로서, 11 is a real picture showing an example of the synthesis of the divided images for the diagnosis of breast cancer according to the present invention,
도 11의 (a)는 디텍터 이동 전 획득 영상(A) of FIG. 11 shows an acquired image before moving a detector.
도 11의 (b)는 디텍터 이동 후 획득 영상(B) of FIG. 11 shows an acquired image after moving the detector.
도 11의 (c)는 디텍터 이동 전 획득영상 및 이동 후 획득 영상을 합성하여 획득한 최종 영상11 (c) shows a final image obtained by synthesizing the acquired image before and after the detector movement.
이하, 본 발명의 디지털 엑스선 유방암 진단장치 및 진단방법을 첨부된 도 1 내지 11을 참조하여 상세히 설명한다.Hereinafter, a digital x-ray breast cancer diagnosis apparatus and diagnostic method of the present invention will be described in detail with reference to FIGS. 1 to 11.
본 발명의 실시 예의 설명에 있어서, 소면적이라 함은 기존의 공지된 디텍터 사이즈에 비해 본 발명의 디텍터가 상대적으로 작은 면적임을 의미한다.In the description of the embodiment of the present invention, the small area means that the detector of the present invention is a relatively small area compared to the existing known detector size.
도 1은 본 발명의 실시 예에 따른 엑스선을 이용한 유방암 진단장치(100)의 개략적 구성을 나타낸 것이다.1 illustrates a schematic configuration of a breast cancer diagnosis apparatus 100 using X-rays according to an embodiment of the present invention.
이를 참조하면, 본 발명은, 엑스선(X-선)을 조사하는 엑스선 발생기(110)와, 상기 엑스선(X-ray) 발생기(110)에서 조사되는 엑스선의 조사 영역을 한정하는 콜리메이터(collimator; 120)와, 상기 엑스선 발생기에서 발생되어 유방(B)을 투과한 엑스선을 검출하는 디지털 센서가 구비되며 유방(B)의 분할 촬영이 가능해지도록 이동 가능하게 설치되는 디텍터(150)와, 상기 콜리메이터(120)와 상기 디텍터(150) 사이에 개재되어 환자의 유방(B)을 고정하는 유방고정장치(130)를 포함하여 구성된다.Referring to this, in the present invention, the X-ray generator 110 for irradiating X-rays (X-rays), and the collimator (collimator) for limiting the irradiation region of the X-rays irradiated from the X-ray (X-ray) generator 110; And a detector 150 which detects X-rays generated by the X-ray generator and penetrates the breast B, and is installed to be movable so that split imaging of the breast B is possible, and the collimator 120. And a breast fixation device 130 interposed between the detector 150 and the breast B of the patient.
이때, 본 발명은 상기 디텍터(150)의 슬라이딩 이동이 가능하도록 하는 가이드 플레이트(160)를 더 구비하며, 상기 가이드 플레이트(160)에는 디텍터(150)의 직선운동을 안내하는 가이드 수단이 구비된다.At this time, the present invention further comprises a guide plate 160 to enable the sliding movement of the detector 150, the guide plate 160 is provided with a guide means for guiding the linear movement of the detector 150.
그리고, 상기 콜리메이터(120)는 엑스선의 조사범위를 조절할 수 있으며, 도 7에 도시된 바와 같이 세로방향(디텍터의 이동방향, 세로방향 화살표 참조)으로 이동하여 세로방향에 있어서의 엑스선 조사범위를 조절하는 기능을 하되 각각 독립적으로 이동가능하도록 설치되는 세로방향 블레이드(122a,122b)와, 도 8에 도시된 바와 같이 가로방향(유방의 좌우 폭방향, 가로방향 화살표 참조)으로 이동하여 가로방향에 있어서의 엑스선 조사범위를 조절하는 기능을 하되 각각 독립적으로 이동가능하도록 설치되는 가로방향 블레이드(121a,121b)를 포함하여 구성된다.In addition, the collimator 120 may adjust the irradiation range of X-rays, and as shown in FIG. 7, the collimator 120 adjusts the X-ray irradiation range in the vertical direction by moving in the vertical direction (see the moving direction of the detector and the vertical arrow). Vertical blades (122a, 122b) are installed so as to be movable independently of each other, and move in the horizontal direction (see the left and right width direction of the breast, see the horizontal arrow) as shown in Figure 8 in the horizontal direction It functions to adjust the X-ray irradiation range of the horizontal blades 121a and 121b which are installed to be movable independently of each other.
기본적으로는 상기 콜리메이터(120)가 상기 세로방향 블레이드(122a,122b)를 포함하여 구성되며, 상기 세로방향 블레이드(122a,122b)에 추가하여 상기 가로방향 블레이드(121a,121b)를 더 포함하여 구성되는 것이 엑스선 조사면적을 최소화해서 시술자나 환자에 대한 불필요한 엑스선 피폭방지를 위해 좋다.Basically, the collimator 120 is configured to include the longitudinal blades 122a and 122b, and further includes the transverse blades 121a and 121b in addition to the longitudinal blades 122a and 122b. It is good to prevent unnecessary X-ray exposure to the operator or the patient by minimizing the X-ray irradiation area.
이때, 조사범위 조절이라 함은 조사면적과 조사위치 둘 중 적어도 한 가지의 조절을 말한다.At this time, the irradiation range adjustment means adjustment of at least one of the irradiation area and the irradiation position.
한편, 상기 엑스선 발생기(110), 특히 엑스선 출사구에 최대한 근접된 위치에는 엑스선 촬영 전에 환자의 가슴크기를 확인하기 위해 빛을 조사하는 조명광원(엑스선 조사야 표시기), 예를 들면 할로겐 램프(170)가 장착되며, 상기 할로겐 램프(170)의 조사 범위도 역시 콜리메이터(120)의 가로방향 블레이드(121a,121b)와 세로방향 블레이드(122a,122b)의 조합에 의해 조절된다. On the other hand, the X-ray generator 110, in particular, the position as close as possible to the X-ray exit, an illumination light source (X-ray irradiation field indicator) for irradiating light to check the size of the patient before X-ray imaging, for example halogen lamp 170 Is mounted, and the irradiation range of the halogen lamp 170 is also adjusted by the combination of the longitudinal blades 121a and 121b and the longitudinal blades 122a and 122b of the collimator 120.
즉, 상기 콜리메이터(120)는 조명광원인 할로겐 램프(170)의 조사영역 조절에도 사용된다. 그리고, 상기 조명광원, 즉 엑스선 조사야 표시기는 분할 촬영 여부의 판단을 위해 가슴크기를 확인하고 가슴크기와 디텍터 크기를 비교하는데 사용될 수 있으며, 상기 조명광원의 종류가 할로겐 램프에 한정되는 것은 아니다.That is, the collimator 120 is also used to adjust the irradiation area of the halogen lamp 170 as an illumination light source. In addition, the illumination light source, that is, the X-ray irradiation field indicator may be used to check the chest size and compare the chest size and the detector size to determine whether to take a segmentation, the type of the illumination light source is not limited to the halogen lamp.
그리고, 상기 유방고정장치(130)는, 엑스선을 방출하는 방향과 수직이 되도록 환자의 유방(B)을 양쪽에서 압축하여 고정하는 장치로서, 일반적으로 아래에는 받침판(132)이 설치되고, 위쪽에는 압박판(131)이 승강가능하게 설치되어, 상기 압박판(131)이 받침판(132)쪽으로 내려와 유방(B)을 압축하여 고정하게 되는데, 상기 압박판(131)으로는 투시가능한 플레이트가 예시될 수 있고, 상기 받침판(132)의 아래에는 산란선을 차단하는 그리드(Grid)가 설치된다.In addition, the breast fixing device 130 is a device for compressing and fixing the breast B of the patient on both sides so as to be perpendicular to the direction of emitting X-rays, and generally, a support plate 132 is installed below and above. The pressure plate 131 is installed to be elevated, and the pressure plate 131 is lowered toward the support plate 132 to compress and fix the breast B. As the pressure plate 131, a transparent plate may be illustrated. The grid may be disposed below the support plate 132 to block scattering lines.
한편, 도 6 내지 도 8을 참조하여, 콜리메이터의 구조 예를 보다 구체적으로 살펴보면, 본 발명에 적용된 콜리메이터(120)는, 2개의 가로방향 블레이드(121a,121b)와, 이에 직교하게 설치되는 2개의 세로방향 블레이드(122a,122b)로 구성된다.On the other hand, referring to Figures 6 to 8, look at the structure of the collimator in more detail, the collimator 120 applied to the present invention, two horizontal blades (121a, 121b) and two orthogonal to this installed And longitudinal blades 122a and 122b.
그리고, 상기 2개의 가로방향 블레이드(121a,121b) 각각에는 블레이드에 구동력을 제공하는 구동모터(123a, 123b)와, 상기 가로방향 블레이드(121a,121b)의 직선운동을 안내하는 가로방향 리니어 가이드(125a, 125b)가 구비된다.Each of the two horizontal blades 121a and 121b includes drive motors 123a and 123b for providing a driving force to the blades, and a horizontal linear guide for guiding linear movement of the horizontal blades 121a and 121b. 125a, 125b).
물론, 상기 2개의 세로방향 블레이드(122a,122b) 각각에는 블레이드에 구동력을 제공하는 구동모터(124a, 124b)와, 상기 2개의 세로방향 블레이드(122a,122b) 각각의 직선운동을 안내하는 세로방향 리니어 가이드(126a, 126b)가 구비된다.Of course, each of the two longitudinal blades 122a and 122b includes drive motors 124a and 124b for providing a driving force to the blades and a longitudinal direction for guiding linear movement of each of the two longitudinal blades 122a and 122b. Linear guides 126a and 126b are provided.
여기서, 상기 2개의 가로방향 블레이드(121a,121b) 및 2개의 세로방향 블레이드(122a,122b)는 각각에 독립적으로 연결된 구동모터의 제어에 따라, 상대 블레이드의 이동 여부와 관계없이 독립적으로 이동할 수 있다.Here, the two horizontal blades 121a and 121b and the two longitudinal blades 122a and 122b may move independently of each other regardless of the movement of the counter blades under the control of a driving motor independently connected to each other. .
한편, 도 6 및 도 7을 참조하면 2개의 세로방향 블레이드(122a,122b)와 세로방향 구동모터(124a, 124b) 사이에는 랙(128a, 128b)과 피니언(127a, 127b)을 이용한 동력전달기구가 적용된 것이 예시되어 있고, 도 6 및 도 8을 참조하면 2개의 가로방향 블레이드(121a,121b)와 가로방향 구동모터(123a, 123b) 사이에는 벨트(129)를 이용한 동력전달기구가 개시되어 있으나, 이에 한정되지 않고 기타 다른 구조의 공지의 동력전달기구도 적용 가능하다. 6 and 7, a power transmission mechanism using racks 128a and 128b and pinions 127a and 127b between two longitudinal blades 122a and 122b and longitudinal drive motors 124a and 124b. 6 and 8 illustrate a power transmission mechanism using a belt 129 between two horizontal blades 121a and 121b and horizontal driving motors 123a and 123b. However, the present invention is not limited thereto, and other known power transmission mechanisms may be applied.
그리고, 도 1의 미설명부호 140은 엑스선 발생기(110) 등의 진단장치를 회전시키기 위한 회전체이다.In addition, reference numeral 140 of FIG. 1 is a rotating body for rotating a diagnostic apparatus such as an X-ray generator 110.
이와 같이 구성된 본 발명의 진단장치를 이용한 진단 과정을 첨부도면을 참조하여 설명하면 다음과 같다.Referring to the accompanying drawings, the diagnostic process using the diagnostic apparatus of the present invention configured as described above is as follows.
도 9 및 도 10은 본 발명의 유방암 진단방법을 나타낸 흐름도로서, 도 9는 분할촬영이 필요없는 소면적 디텍터 촬영 범위 내의 가슴크기 일 때의 진단방법을 보여주는 흐름도이고, 도 10은 본 발명의 소면적 디텍터의 촬영 범위를 벗어나는 가슴크기 일 때의 진단방법을 보여주는 흐름도이다.9 and 10 are flowcharts illustrating a method for diagnosing breast cancer of the present invention, FIG. 9 is a flowchart illustrating a diagnosis method when the breast size is within a small-area detector photographing range requiring no segmentation imaging, and FIG. This is a flowchart showing the diagnosis method when the chest size is out of the area detector's shooting range.
이들 도면을 주로 참조하면, 유방암 진단을 하고자 하는 환자의 유방(B)을 유방고정 장치(130)에 압박되게 고정시키고, 엑스선 촬영에 앞서 환자의 가슴크기를 확인하는 단계, 보다 구체적으로는 분할촬영여부의 판단을 위해 환자의 가슴크기와 디텍터의 크기를 비교하는 단계가 수행된다.Mainly referring to these drawings, the breast B of the patient to be diagnosed with breast cancer is fixed to the breast fixation device 130 by pressing, and the breast size of the patient is confirmed prior to X-ray imaging, more specifically, segmental imaging. To determine whether or not to compare the chest size of the patient and the size of the detector is performed.
이때, 가슴크기는 할로겐 램프(170)를 이용하여 측정하게 되는데, 할로겐 램프(170)의 불빛이 비치는 영역을 콜리메이터(120)로 조절하여 불빛의 조사 영역을 디텍터(150) 크기로 맞추어서 환자의 가슴크기를 확인할 수 있다. At this time, the chest size is measured by using a halogen lamp 170, by adjusting the area of the light of the halogen lamp 170 with the collimator 120 to adjust the irradiation area of the light to the size of the detector 150 of the patient's chest You can check the size.
이와 달리 상기 콜리메이터를 조절하여 압박상태의 유방 전체가 상기 할로겐 램프에 의해 조명되도록 하고 상기 콜리메이터의 개방면적을 기초로 할로겐 램프 조명영역의 크기를 도출해서 상기 할로겐 램프 조명영역의 크기와 디텍터의 크기를 비교함으로써 환자의 가슴크기를 자동으로 확인할 수도 있다.In contrast, the collimator is adjusted so that the entire breast under pressure is illuminated by the halogen lamp, and the size of the halogen lamp lighting area and the size of the detector are derived by deriving the size of the halogen lamp lighting area based on the open area of the collimator. By comparing, the patient's chest size can be checked automatically.
즉, 인체에 해로운 엑스선 대신 무해한 할로겐 램프(170)의 불빛을 콜리메이터(120)를 통해 조사하여 디텍터(150) 면적과 환자의 가슴크기와의 관계를 파악함으로써 분할 촬영 여부를 결정할 수 있게 되는 것이다.That is, by irradiating the light of the halogen lamp 170 harmless to the human body through the collimator 120 instead of X-rays harmful to the human body, it is possible to determine whether to take a segmentation by determining the relationship between the detector 150 area and the patient's chest size.
그리고, 확인된 환자의 가슴크기에 따라서 진단 영상 획득 방식을 달리하게 된다.Then, the diagnosis image acquisition method is changed according to the confirmed chest size of the patient.
먼저, 할로겐 램프(170)의 빛을 이용하여 환자의 가슴크기를 확인한 결과, 환자의 가슴크기가 본 발명의 소면적 디텍터(150)에 의한 1회 최대촬영면적 이내인 경우에는, 엑스선 조사 범위를 환자의 가슴크기에 맞추어 조정하고, 촬영을 행하여 소면적 영상을 획득하게 된다(도 9 참조).First, as a result of confirming the chest size of the patient by using the light of the halogen lamp 170, when the chest size of the patient is within the one-time maximum imaging area by the small-area detector 150 of the present invention, the X-ray irradiation range After adjusting to the chest size of the patient, a small area image is obtained by photographing (see FIG. 9).
즉, 환자의 가슴크기가 본 발명의 소면적 디텍터(150)에 의한 1회 최대촬영면적 이내인 경우에는 디텍터(150)를 이동시키지 않고 촬영하여 진단 영상을 획득하게 되는 것이다.That is, when the chest size of the patient is within the maximum one-time photographing area by the small-area detector 150 of the present invention, the diagnostic image is obtained by photographing without moving the detector 150.
따라서, 고정형 대면적 디텍터를 이용함에 따라 엑스선 조사영역은 매우 넓게 나타났던 기존의 경우와는 달리(도 2의 (a) 참조), 본 발명은 엑스선 조사범위를 조절할 수 있는 가변형 소면적 디텍터(150)를 이용함에 따라 엑스선 조사영역을 최소화할 수 있어(도 2의 (b) 참조), 환자의 가슴크기에 알맞은 최소 영역에만 엑스선이 조사되도록 함으로써, 불필요한 엑스선 피폭을 방지하여 환자 및 진단장치 조작자의 건강에 끼치는 영향을 최소화할 수 있다.Accordingly, unlike the conventional case in which the X-ray irradiation area is very wide by using the fixed large area detector (see FIG. 2A), the present invention provides a variable small-area detector 150 that can adjust the X-ray irradiation range. X-ray irradiation area can be minimized (see (b) of FIG. 2), so that X-rays are irradiated only to the minimum area suitable for the patient's chest size, thereby preventing unnecessary X-ray exposure of the patient and the diagnostic apparatus operator. Minimize your health impact.
한편, 환자의 가슴크기를 확인한 결과, 가슴크기가 디텍터(150)의 1회 최대촬영면적을 초과한 경우에는 다음과 같이 진단 영상을 획득하게 된다(도 10 참조).On the other hand, as a result of confirming the chest size of the patient, when the chest size exceeds the one-time maximum imaging area of the detector 150, the diagnostic image is obtained as follows (see FIG. 10).
먼저, 엑스선 조사범위를 1차 조정한 다음, 1차 촬영을 수행하게 된다. 이때 엑스선를 검출하는 디텍터(150)의 이동은 없다(도 4의 (a) 및 도 5의 (a) 참조).First, the X-ray irradiation range is first adjusted, and then primary imaging is performed. At this time, there is no movement of the detector 150 for detecting X-rays (see FIGS. 4A and 5A).
이후, 엑스선을 검출하는 디텍터(150)를 미촬영 영역을 보상(cover)하는 2차 촬영 위치로 이동시키게 된다.Thereafter, the detector 150 for detecting the X-rays is moved to the secondary imaging position that covers the non-photography region.
이때, 상기 디텍터(150)는 구동원(미도시)의 구동력을 전달받아 이동하게 되며 가이드 플레이트(160)의 안내작용에 따라 메인프레임(180) 쪽으로 이동하게 된다.In this case, the detector 150 moves by receiving a driving force of a driving source (not shown) and moves toward the main frame 180 according to the guide action of the guide plate 160.
2차 촬영 위치로 디텍터(150)가 이동을 완료한 후에는 엑스선 조사범위를 2차 조정하는 단계가 수행되며, 2차 조정이 완료되면 엑스선을 조사하여 2차 촬영을 행하게 된다(도 4의 (b) 및 도 5의 (b) 참조).After the detector 150 completes the movement to the secondary photographing position, the second adjustment of the X-ray irradiation range is performed. When the secondary adjustment is completed, the secondary imaging is performed by irradiating the X-ray (FIG. b) and (b) of FIG. 5).
그리고, 2차 촬영이 완료된 다음에는, 상기 1차 촬영 영상 및 2차 촬영 영상을 합성(stitching)하는 단계를 수행하며, 이를 통해 대면적 영상을 획득하게 된다(도 4의 (c) 참조).After the second photographing is completed, a step of stitching the first photographed image and the second photographed image is performed, thereby obtaining a large area image (see FIG. 4C).
즉, 1차 촬영에서 상기 1차 촬영 영상을 획득하고, 2차 촬영에서 상기 2차 촬영 영상을 획득한 다음, 상기 1차 촬영 영상과 2차 촬영 영상을 합성(Stitching)하여 고품질의 영상을 획득하게 된다.That is, the first photographing image is acquired in the first photographing, the second photographing image is obtained in the second photographing, and the high quality image is obtained by stitching the first photographing image and the second photographing image. Done.
도 11은 본 발명에 따른 유방암 진단에 있어서의 분할 촬영 영상의 실제 합성 예를 나타낸 참고사진으로서, 도 11의 (a)는 디텍터(150) 이동 전 획득 영상(즉, 1차 촬영영상)으로서, 이고, 도 11의 (b)는 디텍터(150) 이동 후 획득 영상(즉, 2차 촬영영상)이며, 도 11의 (c)는 디텍터(150) 이동 전 획득영상 및 이동 후 획득 영상을 합성하여 획득한 최종 영상이다.FIG. 11 is a reference picture showing an actual synthesis example of a segmented image in breast cancer diagnosis according to the present invention. FIG. 11 (a) is an image obtained before moving the detector 150 (that is, a primary image). 11 (b) shows the acquired image after moving the detector 150 (that is, the secondary photographed image), and FIG. 11 (c) shows the synthesized image before and after the moving of the detector 150. This is the final image acquired.
도 11의 (a) 및 (b)의 영상은 분할 촬영을 함에 있어서 각각의 촬영 단계에서 엑스선 저노출 상태 및 엑스선 고노출 상태로 촬영하고, 촬영된 영상을 융합하여 합성 영상(최종 영상)을 획득한 것으로서, 이렇게 얻어진 각각의 다중노출 영상을 합성(Stitching)하여 도 11의 (c)와 같이 고품질의 최종 합성 영상을 획득하게 된다.The images of FIGS. 11A and 11B are photographed in the X-ray low exposure state and X-ray high exposure state at each imaging stage in segmented photographing, and the captured images are fused to obtain a composite image (final image). As a result, each obtained multi-exposure image is stitched to obtain a high quality final synthesized image as shown in FIG.
이상에서와 같이, 본 발명은 콜리메이터(120)를 통해 엑스선 조사범위를 조절 가능하도록 함과 더불어 디텍터(150)가 슬라이딩 이동가능하도록 하여, 동양 여성의 가슴크기에 최적화된 소면적 디텍터(150)가 적용되도록 하면서도, 소면적 디텍터(150)에 이동성을 부여함으로써 일부 가슴크기가 1회 촬영범위를 넘어가는 큰 유방 사이즈에도 효율적으로 적용할 수 있도록 함에 따라, 유방암 진단시 불필요한 피폭을 줄여 환자 및 조작자의 건강 증진에 기여함과 아울러 진단 시간 및 효율을 향상시킬 수 있으며, 디텍터의 사이즈 축소를 통해 유방암 진단장치(100)의 제조비용을 줄일 수 있도록 한 것이다. As described above, the present invention enables to adjust the X-ray irradiation range through the collimator 120 and to allow the detector 150 to be slidable, so that the small-area detector 150 optimized for the breast size of the oriental woman is provided. While being applied, the small area detector 150 can be applied to a large breast size in which some breast sizes exceed the one-shot range by providing mobility, thereby reducing unnecessary exposure when diagnosing breast cancer. In addition to contributing to the improvement of health, it is possible to improve diagnosis time and efficiency, and to reduce the manufacturing cost of the breast cancer diagnosis apparatus 100 by reducing the size of the detector.
본 발명은 상기한 실시 예로 한정되지 아니하며, 본 발명의 기술사상의 범주를 벗어나지 않는 한, 여러 가지 다양한 형태로 변경 및 수정하는 것이 가능함은 물론이다.The present invention is not limited to the above-described embodiments, and may be changed and modified in various forms without departing from the scope of the technical spirit of the present invention.
그러므로, 상기한 실시 예는 제한적인 것이 아니라 예시적인 것으로 여겨져야 하고, 이에 따라 본 발명은 상술한 설명에 한정되지 않고 첨부된 청구항의 범주 및 그 동등 범위 내에서 변경될 수 있음은 당업자에게는 당연한 사항이라 할 것이다.Therefore, it is to be understood by those skilled in the art that the above-described embodiments are to be considered as illustrative and not restrictive, and therefore, the invention is not limited to the above description but may be modified within the scope of the appended claims and their equivalents. Will be called.
본 발명은 소면적 디텍터를 사용하면서도, 이동식 디텍터에 의한 멀티 촬영을 통해 대면적 고품질 진단 영상 획득이 가능하여 동양 여성의 가슴크기에 적합할 뿐만 아니라 가슴이 큰 서양 여성에도 효과적으로 적용할 수 있으므로, 여성의 유방암에 진단에 최적화됨과 아울러, 유방암 진단장치의 기기 가격에서 차지하는 비중이 큰 디텍터의 소형화를 통해 가격을 낮추어 유방암 진단장치의 대중화에 기여할 수 있으므로, 산업상 이용 가능성이 매우 높은 발명이다.The present invention enables the acquisition of large-scale high-quality diagnostic images through multi-shooting by a movable detector while using a small-area detector, which is not only suitable for Asian women's breast size but also effectively applied to Western women with large breasts. It is optimized for the diagnosis of breast cancer, and by miniaturizing the detector, which has a large proportion in the device price of the breast cancer diagnosis apparatus, the price can be lowered and contribute to the popularization of the breast cancer diagnosis apparatus, and thus the invention is highly applicable to the industry.

Claims (8)

  1. 엑스선을 조사하는 엑스선 발생기;An X-ray generator for radiating X-rays;
    상기 엑스선(X-ray) 발생기에서 조사되는 엑스선의 조사 영역을 한정하는 콜리메이터(collimator);A collimator defining a radiation area of X-rays radiated from the X-ray generator;
    상기 엑스선 발생기에서 발생되어 유방을 투과한 엑스선을 검출하는 디지털 센서가 구비되며 유방의 분할 촬영이 가능해지도록 이동 가능하게 설치되는 디텍터; 그리고 A detector having a digital sensor generated by the X-ray generator and detecting X-rays transmitted through the breast, the detector being movably installed to enable divisional imaging of the breast; And
    상기 콜리메이터와 상기 디텍터 사이에 개재되어 환자의 유방을 고정하는 유방고정장치;를 포함하여 구성되는 것을 특징으로 하는 디지털 엑스선 유방암 진단장치.And a breast fixation device interposed between the collimator and the detector to fix the breast of the patient.
  2. 제1항에 있어서,The method of claim 1,
    상기 디텍터의 슬라이딩 이동이 가능하도록 하는 가이드 플레이트가 더 구비됨을 특징으로 하는 디지털 엑스선 유방암 진단장치.Digital X-ray breast cancer diagnostic device, characterized in that the guide plate is further provided to enable the sliding movement of the detector.
  3. 제1항에 있어서,The method of claim 1,
    상기 콜리메이터는, The collimator,
    가로방향으로 이동하여 가로방향에 있어서의 엑스선 조사범위를 조절하는 기능을 하되 각각 독립적으로 이동가능하도록 설치되는 가로방향 블레이드와,A horizontal blade which functions to adjust the X-ray irradiation range in the horizontal direction by moving in the horizontal direction and is installed to be movable independently of each other,
    세로방향으로 이동하여 세로방향에 있어서의 엑스선 조사범위를 조절하는 기능을 하되 각각 독립적으로 이동가능하도록 설치되는 세로방향 블레이드를 포함하여서 됨을 특징으로 하는 디지털 엑스선 유방암 진단장치.Digital X-ray breast cancer diagnostic device, characterized in that it comprises a longitudinal blade which is installed to move independently of each other, the function of adjusting the X-ray irradiation range in the longitudinal direction by moving in the longitudinal direction.
  4. 제1항에 있어서,The method of claim 1,
    상기 콜리메이터에는, In the collimator,
    엑스선 촬영 전에 환자의 가슴크기를 확인하기 위해 빛을 조사하는 할로겐 램프가 함께 장착됨을 특징으로 하는 디지털 엑스선 유방암 진단장치. Digital X-ray breast cancer diagnosis device is equipped with a halogen lamp that irradiates light to check the size of the patient before the X-ray.
  5. 압박된 가슴크기가 디텍터의 1회 최대촬영면적을 초과할 경우, 엑스선 조사범위를 1차 조정하는 단계;First adjusting the X-ray irradiation range when the compressed chest size exceeds the one-time maximum imaging area of the detector;
    엑스선을 조사하여 1차 촬영을 행하는 단계;Radiating X-rays to perform primary imaging;
    엑스선을 검출하는 디텍터를 2차 촬영 위치로 이동시키는 단계;Moving the detector detecting the X-ray to the secondary imaging position;
    엑스선 조사범위를 2차 조정하는 단계;Secondly adjusting the X-ray irradiation range;
    엑스선을 조사하여 2차 촬영을 행하는 단계; 그리고Irradiating X-rays to perform secondary imaging; And
    1차 촬영 영상 및 2차 촬영 영상을 합성(stitching)하여 대면적 영상을 획득하는 단계를 포함하는 것을 특징으로 하는 디지털 엑스선 유방암 진단방법.A method of diagnosing digital x-ray breast cancer, comprising: obtaining a large-area image by stitching a first captured image and a second captured image.
  6. 제5항에 있어서,The method of claim 5,
    분할 촬영여부의 확인을 위해 상기 가슴크기를 확인하는 단계를 더 포함하는 디지털 엑스선 유방암 진단방법.Digital X-ray breast cancer diagnostic method further comprising the step of confirming the size of the breast to confirm whether the segmentation.
  7. 제5항에 있어서,The method of claim 5,
    분할 촬영여부의 확인을 위해 상기 가슴크기를 확인하는 단계는, The step of checking the breast size to confirm whether the split shooting,
    상기 엑스선의 조사 영역을 한정하는 콜리메이터를 조절하여 압박상태의 유방 전체가 할로겐 램프에 의해 조명되도록 하는 단계와; Adjusting a collimator defining an irradiation area of the X-ray so that the entire breast under pressure is illuminated by a halogen lamp;
    상기 콜리메이터의 개방면적을 기초로 할로겐 램프 조명영역의 크기를 도출하는 단계와;Deriving a size of a halogen lamp lighting area based on the open area of the collimator;
    상기 할로겐 램프 조명영역의 크기와 디텍터의 크기를 비교하는 단계;를 포함하여 구성되는 것을 특징으로 하는 디지털 엑스선 유방암 진단방법.And comparing the size of the halogen lamp illumination area with the size of the detector.
  8. 제6항에 있어서,The method of claim 6,
    상기 가슴크기 확인 단계 수행에 따라 가슴크기가 디텍터의 1회 최대촬영면적 이내일 경우에는, When the chest size is within the maximum shooting area of the detector according to the step of checking the breast size,
    엑스선 조사범위를 조정하고 촬영을 행하여 소면적 영상을 획득하게 되는 것을 특징으로 하는 디지털 엑스선 유방암 진단방법.Digital X-ray breast cancer diagnostic method characterized in that to obtain a small area image by adjusting the X-ray irradiation range and shooting.
PCT/KR2012/005567 2011-12-22 2012-07-13 Digital x-ray apparatus for diagnosing breast cancer and diagnosis method WO2013094836A1 (en)

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