KR20050053488A - Diagnostic device of bone density using structure by non-permeable manner of x-ray scintillator - Google Patents
Diagnostic device of bone density using structure by non-permeable manner of x-ray scintillator Download PDFInfo
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- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
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Abstract
본 발명은 뼈 또는 인접조직에 X선을 투과시켜 영상을 취득하고 뼈의 밀도산출 및 성장판 개폐여부를 진단할 수 있는 증감지 비투과방식의 구조를 이용한 골밀도 진단장치를 얻기 위한 것인 바,The present invention is to obtain a bone density diagnostic apparatus using an sensitized non-transmissive structure that can be obtained by X-rays transmitted to the bone or adjacent tissue and diagnose the density calculation of the bone and whether the growth plate opening and closing,
본체 내부에 X선을 방사하는 엑스레이(x-ray)디텍터와; 상기 엑스레이(x-ray)디텍터와 대응되는 전방면에 장착된 증감지와; 상기 증감지의 앞면에서 직접 이미지를 획득하는 영상캡쳐부와; 상기 영상캡쳐부의 영상을 기입력된 자료와 비교하여 골밀도 및 성장판을 분석하는 소프트웨어를 포함한 컴퓨터(PC)로 구성함으로서, X선의 방출시간을 최소화시키므로 인체에 미치는 나쁜 영향을 감소하도록 하였으며, 특히 영상에서 성장판을 취득 분석하여 기입력된 데이터와 비교하여 성장상태(개폐여부확인)의 진단할 수 있는 골밀도 측정 및 성장판 진단에 뛰어난 효과가 있다.An x-ray detector emitting X-rays inside the main body; A sensitizer mounted on a front surface corresponding to the x-ray detector; An image capture unit for directly obtaining an image from the front of the sensitizer; By comparing the image capturing image with the inputted data, it is composed of a computer (PC) including software for analyzing bone density and growth plate, thereby minimizing the emission time of X-rays, thereby reducing the adverse effects on the human body. Acquisition and analysis of growth plate, compared with the inputted data, has an excellent effect on bone density measurement and growth plate diagnosis that can diagnose the growth state (check whether the opening and closing).
Description
본 발명은 증감지 비투과방식의 구조를 이용한 골밀도 진단장치에 관한 것으로서, 더욱 상세하게는 뼈 또는 인접조직에 X선을 투과시켜 영상을 취득하고 뼈의 밀도 산출 및 성장판 개폐여부를 진단할 수 있는 증감지 비투과방식의 구조를 이용한 골밀도 진단장치에 관한 것이다.The present invention relates to an apparatus for diagnosing bone density using a sensitizer non-transmissive structure, and more particularly, an sensitizer non-transmissive apparatus capable of acquiring an image by transmitting X-rays to bone or adjacent tissue, diagnosing bone density calculation and growth plate opening and closing. It relates to a bone density diagnostic apparatus using the structure of the system.
현재의 의학이 나날이 발전할 수 있었던 것은 신체를 측정하는 검사장비 및 시술할 수 있는 첨단장비 기술개발이 큰 역활을 하고 있으며, 지금도 많은 투자와 기술이 이루어지고 있다. Today's medicine has been able to develop day by day, the development of technology to test the body and the high-tech equipment that can perform a large role, and many investments and technologies are still being made.
종래의 골밀도 측정방법에는 X-ray, 초음파검사 등을 이용하고 있으나 X-ray는 기존의 정형외과등에서 사용되는 X-ray실에 가서 여러번 촬영하여 촬영된 사진으로부터 의사가 일일이 판독해야하므로 오차의 범위가 커지는 문제점이 있으며, 또한, 방사선에 노출되는 시간이 많아지므로 인체에 나쁜 영향을 미치는 문제점이 있었다.Conventional bone density measurement methods use X-rays, ultrasound, etc. X-rays go to the X-ray room used in conventional orthopedic surgery, and several times taken by the doctor to read from the photos taken by the doctor, the range of error There is a problem that increases, and also because the time to be exposed to radiation increases, there was a problem that adversely affects the human body.
또한, 초음파검사는 영상으로 촬영되는 것으로 골밀도 영상의 이미지를 얻어서 판독하기가 매우 어려운 문제점이 있었다.In addition, the ultrasound is taken as an image, there is a problem that is difficult to obtain the image of the bone density image to read.
또한, 성장판을 진단하기 위한 장치와 데이터를 통한 기준치를 설정하기가 매우 어려운 문제점이 있었으며, 장비를 구성하기 위한 시설비의 투자가 높은 문제점이 있었다.In addition, there was a problem that it is very difficult to set the reference value through the device and data for diagnosing the growth plate, there was a problem of high investment in facility cost to configure the equipment.
따라서, 상기한 종래의 문제점을 해결하기 위해 안출한 것으로 본 발명은 골밀도 측정기는 발뒤꿈치의 종골부위 뼈의 골밀도를 정확하게 측정 및 발뒤꿈치를 측정시트부에 안착시켜 골밀도를 측정할 수 있는 증감지 비투과방식의 구조를 이용한 골밀도 진단장치를 제공하는 데 있다.Therefore, the present invention has been made in order to solve the above-mentioned problems, the present invention is a bone density meter is a sensitizer non-transmissive method that can accurately measure the bone density of the bones of the calcaneus of the heel and to measure the bone density by seating the heel on the measuring sheet portion To provide a diagnosis device for bone density using the structure of.
본 발명의 다른 목적은 증감지의 뒷면이 아닌 앞면에 맺힌 영상을 센싱하도록 초저도카메라로 직접 이미지를 얻을 수 있는 증감지 비투과방식의 구조를 이용한 골밀도 진단장치를 제공하는 데 있다.Another object of the present invention is to provide an apparatus for diagnosing bone density using a sensitizer non-transmissive structure capable of directly obtaining an image with an ultra low light camera so as to sense an image formed on the front side of the sensitizer rather than the back side.
본 발명의 또 다른 목적은 웨지보상알고리즘 적용 및 X-ray 안정화 구간 내 측정을 통하여 오차률1%이내의 우수한 재현성과 낮은 피폭량을 제공하는 증감지 비투과방식의 구조를 이용한 골밀도 진단장치를 제공하는 데 있다.It is still another object of the present invention to provide a bone density diagnosis apparatus using a sensitized non-transmissive structure that provides excellent reproducibility within a 1% error rate and low exposure through measurement of the wedge compensation algorithm and measurement in the X-ray stabilization section. .
본 발명의 또 다른 목적은 골밀도 측정 및 성장판의 개폐상태를 측정할 수 있는 증감지 비투과방식의 구조를 이용한 골밀도 진단장치를 제공하는 데 있다. Still another object of the present invention is to provide a bone density diagnosis apparatus using a sensitizing non-transmissive structure capable of measuring bone density and opening / closing state of a growth plate.
이러한 목적을 달성하기 위한 본 발명은 본체부와 X선을 발생시키는 X선관, 신호변환장치인 X선 검출기(detector)와, 전원을 공급하는 고압발생기(HV Generator)와 상기 본체부내의 구성부의 작동 및 제어, 영상처리, 밀도계산 등은 소프트웨어를 포함한 컴퓨터부로 이루어져 골밀도를 측정할 수 있도록 달성하였다.The present invention for achieving this object is an X-ray tube for generating the main body and the X-ray, an X-ray detector (signal converter), a high-voltage generator (HV Generator) for supplying power and the operation of the components in the main body And control, image processing, density calculation, etc. was achieved by the computer unit including the software to measure the bone density.
또, 본 발명은 크게 X선을 방사하는 X선발생부와 X선 영상을 획득하는 영상캡쳐부와 영상으로부터 골밀도 및 성장판을 분석하는 소프트웨어르 포함한 컴퓨터로 구성되어 있다.The present invention is largely composed of an X-ray generator that emits X-rays, an image capture unit that acquires X-ray images, and a computer including software for analyzing bone density and growth plates from the images.
도 1은 본 발명의 실시예의 증감지 비투과방식의 구조를 이용한 골밀도 진단장치를 도시한 구성도이고, 도 2는 증감지 비투과방식의 구조를 이용한 골밀도 진단장치의 엑스레이(x-ray)디텍터와 증감지 사이에 카메라에 배치한 배치상태도이고, 도 3은 검사대상의 발을 거치공간부에 올려놓은 사용상태도이고, 도 4와 도 5는 골밀도 진단결과를 디스플레이한 상태도이다.1 is a block diagram illustrating a bone density diagnosis apparatus using a non-sensitized structure of an embodiment of the present invention, Figure 2 is a x-ray detector and a sensitizer of the bone density diagnosis apparatus using a non-sensitized structure of the sensitizer. 3 is an arrangement state diagram disposed on a camera, and FIG. 3 is a use state diagram in which a foot of an inspection object is placed on a mounting space portion, and FIGS. 4 and 5 are state diagrams displaying a bone density diagnosis result.
도 1 내지 도 3에 도시한 바와 같이 본 발명은 엑스레이 제너레이터와 엑스레이 디텍터 사이에 검사대상 안착공간부가 형성된 골밀도 측정장치로 구성되며, 상기 본체 내부에 X선을 방사하는 엑스레이(x-ray)디텍터(5)와; 상기 엑스레이(x-ray)디텍터와 대응되는 전방면에 장착된 증감지(8)와; 상기 증감지의 앞면에서 직접 이미지를 획득하는 영상캡쳐부(12)와; 상기 영상캡쳐부의 영상을 기입력된 자료와 비교하여 골밀도 및 성장판을 분석하는 소프트웨어를 포함한 컴퓨터(PC)로 구성하고 있다.As shown in FIGS. 1 to 3, the present invention includes a bone density measuring device having a seating space to be inspected between an X-ray generator and an X-ray detector, and an x-ray detector for radiating X-rays in the main body ( 5) and; A sensitizer 8 mounted on a front surface corresponding to the x-ray detector; An image capture unit 12 for directly obtaining an image from the front of the sensitizer; The image capture unit is composed of a computer (PC) including software for analyzing bone density and growth plate by comparing the image with the input data.
상기 본체(20)는 외형의 케이스를 형성하고 일측 중간에 검사대상을 안착할 수 있는 거치공간부(6)를 구성하여 발이나, 팔꿈치, 손 등을 올려놓을 수 있도록 구성되며 보통 홈, V형 구조로 형성되도록 구성되어진다.The main body 20 forms a case of the outer shape and constitutes a mounting space part 6 for seating the inspection object in the middle of one side, and is configured to put a foot, an elbow, a hand, etc., and is usually a groove, a V-type. It is configured to be formed into a structure.
상기 본체(20)내부의 구성은 고압 제너레이터(3)를 구성하여 엑스레이를 예열시키도록 전원을 공급하도록 장착되며 일정한 높이를 유지하도록 엑스레이(x-ray)디텍터 받침대(2)와 그 상부에 엑스레이(x-ray)디텍터(5)를 구성하고 있다.The internal structure of the main body 20 is configured to supply power to preheat the X-rays by configuring the high-pressure generator 3 and to maintain a constant height of the X-ray detector pedestal 2 and the X-rays on the upper part thereof. The x-ray detector 5 is comprised.
상기 엑스레이(x-ray)디텍터(5)의 전방면에는 영상이 나타내어지도록 증감지(8) 를 배열하고 그 사이에는 검사대상부가 안착되도록 거치공간부(6)를 구성하고, 상기 거치공간부의 저면에는 내부 웨지(7)를 구성하여 빛을 발산토록 구성하고 있다.On the front surface of the x-ray detector 5, the sensitizer 8 is arranged so that an image is displayed, and a mounting space 6 is configured so that the inspection subject is seated therebetween, and the bottom surface of the mounting space 5 The inner wedge 7 is configured to emit light.
상기 웨지(7)는 매측정시 발생되는 오차를 줄이기 위해 웨지를 부착하고, 웨지를 통하여 밝기를 조절하도록 구성되면 보통 검사대상(발, 팔꿈치, 손가락 등)을 안착할 수 있는 공간부를 "V"형 홈구조의 저면에 알루미늄 재질의 원기둥형 웨지가 장착되어 구성되며, 상기 원기둥웨지는 그 높이는 2mm, 4mm, 6mm, 8mm, 10mm로 배열 구성한 다섯 단계의 원기둥형 웨지를 배열 구성하고 있다.The wedge (7) is attached to the wedge to reduce the errors generated during each measurement, when configured to adjust the brightness through the wedge is usually "V" the space for seating the subject (foot, elbow, fingers, etc.) An aluminum cylindrical wedge is mounted on the bottom of the groove, and the cylindrical wedge has a cylindrical wedge of five stages arranged in a height of 2 mm, 4 mm, 6 mm, 8 mm, and 10 mm.
상기 엑스레이디텍터(5)와 증감지(8)의 사이에 영상캡쳐부(12)를 구성하고 있으며, 그 구성은 초저도CCD카메라(9)와 카메라의 외관을 납으로 감싸고 있는 케이스와 하단에 받침대(11)와 영상순간감지센서(SMPS)(10)로 구성하고 있다.The image capturing unit 12 is formed between the X-ray detector 5 and the sensitizer 8, and the configuration of the ultra-low CCD camera 9 and the exterior of the camera with lead and a pedestal at the bottom ( 11) and an image instantaneous detection sensor (SMPS) 10.
또한, 상기의 각부를 제어하는 제어부(4)와 외부전원공급부(1)로 구성하고 있다.Moreover, it consists of the control part 4 and the external power supply part 1 which control each said part.
즉, 엑스레이(x-ray)디텍터(5)에서는 58kV, 0.5mA의 고전압을 X선관에 가하도록 되어 있으며, X선이 방사되는 시간은 초저전력 마이크로컨트롤러에 의해 천분의 1초 단위로 조절이 가능하다. 소프트웨어로부터 측정신호가 입력되면 정확히 50밀리세컨의 시간동안 X선 방사가 이루어진다.That is, in the x-ray detector 5, a high voltage of 58 kV and 0.5 mA is applied to the X-ray tube, and the time for radiating the X-rays can be controlled in milliseconds by an ultra low power microcontroller. Do. When the measurement signal is input from the software, X-ray radiation is performed for exactly 50 milliseconds.
또, X선 영상캡쳐부(12)에서는 증감지(신틸레이터, 입사된 X선량에 비례하는 가시광을 발광하는 물질이 도포된 판형 물질)를 이용하여 피검자의 X선 영상을 가시화하고, 이를 초저조도(0.003Lux)CCD카메라(9)를 통하여 NTSC 신호로 변환된다. 이렇게 변환된 신회는 아나로그 신호로서, PC에서 분석이 가능하도록 하기 위해 ‘프레임그레버’를 통한 양자화 과정을 거치게 된다. 본 발명에 사용된 프레임그레버는 USB2.0 규격을 만족하며, 프레임 당 640X480의 데이터를 초당 30프레임의 속도로 영상을 전송하도록 이루어진다. In addition, the X-ray image capturing unit 12 visualizes the X-ray image of the subject by using a sensitizer (a scintillator, a plate-like material coated with a substance emitting visible light proportional to the amount of incident X-rays), 0.003Lux) Converted to NTSC signal through CCD camera 9. The transformed Godhead is an analog signal, which undergoes quantization through the “frame grabber” to enable analysis on a PC. The frame grabber used in the present invention satisfies the USB2.0 standard, and is configured to transmit an image of 640 × 480 data per frame at a rate of 30 frames per second.
상기와 같이 구성되어져 얻어진 영상을 기입력된 기입력된 자료와 비교하여 골밀도 및 성장판을 분석하는 소프트웨어를 의해 골밀도륵 화면상에 디스플레이하도록 구성된 컴퓨터(PC)를 포함하고 있다.And a computer (PC) configured to display the image obtained and configured as described above on a bone density screen by software for analyzing bone density and growth plate by comparing with previously inputted data.
상기와 같이 구성된 본 발명의 증감지 비투과방식의 구조를 이용한 골밀도 진단장치는 본체의 거치공간부(6)에 발(13)을 올려 놓아 발뒤꿈치의 종골부위 뼈의 골밀도를 정확하게 측정하도록 그 작용을 상세히 설명한다.The bone density diagnosis apparatus using the sensitizing non-transmissive structure of the present invention configured as described above puts the foot 13 on the mounting space portion 6 of the main body to accurately measure the bone density of the bone of the calcaneus of the heel in detail. Explain.
먼저, 컴퓨터의 소프트웨어에 의해 제공되는 디스프레이상의 폼에 도 4와 같이 골밀도 진단은 환자 데이터란에 이름, 생년월일, 나이, 성별, 폐경나이, 키, 몸무게를 입력하면 차트번호와 날짜는 자동으로 입력되도록 이루어진다.First, as shown in Figure 4 on the form of the display or abnormality provided by the software of the computer, when entering the name, date of birth, age, sex, menopause age, height, weight in the patient data column chart number and date are automatically entered Is done.
도 5에 성장판진단은 환자 데이터란에 이름, 생년월일, 나이, 성별, 폐경나이, 키, 몸무게를 입력한 하도록 구성되어 있다. 5, the growth plate diagnosis is configured to enter a name, date of birth, age, sex, menopause age, height, and weight in the patient data column.
상기 환자 데이터 입력이 끝나면 화면의 가이드에 따라 환자 측정부위를 위치시키고 시작번튼을 선택하면 영상취득 및 분석되어 디스플레이창에 디스플레이된다. After the patient data input is completed, the patient measurement part is positioned according to the guide on the screen, and if the start button is selected, the image is acquired and analyzed and displayed on the display window.
본체의 작동은 거치공간부(6)에 진단 대상물을 올려놓은 후에 시작 버튼을 누르면 외부전원단자에 공급되는 전원이 제어부(4)를 통하여 각부에 전원이 공급되어지고, 순간영상감지센서(10)에 전원이 공급되어 초저도CCD카메라(9)가 켜지고, 영상을 전송하게 된다. 이와 동시에 고압제너레이터(3)에 공급되어 엑스레이(x-ray)디텍터를 2초간 예열되고 80MS동안 X-ray가 조사된다.The operation of the main body is to press the start button after placing the object to be placed in the space 6, the power supplied to the external power terminal is supplied to each part through the control unit 4, the instantaneous image sensor 10 Power is supplied to the ultra-low CCD camera (9) is turned on, and the image is transmitted. At the same time, it is supplied to the high-pressure generator 3 to preheat the x-ray detector for 2 seconds and irradiate the X-ray for 80MS.
다음 조사된 X-ray는 증감지에 입사량과 비례하여 가시광을 발광하므로 발고정대에 올려놓은 조사체 및 내부에 구성한 웨지(7)의 영상이 가시광으로 발광하게 되어 증감지의 영상을 전송하며 X-ray 조사가 끝나면 순간영상감지센서(10)의 전원이 차단되면 영상전송이 종료된다. 상기의 과정이 끝나면 켄트롤 메인보드는 PC로 종료신호를 전송한다.Since the irradiated X-ray emits visible light in proportion to the amount of incident light on the sensitizer, the image of the irradiator placed on the foot rest and the wedge 7 configured therein emits visible light and transmits the image of the sensitizer. When the irradiation is finished, the image transmission is terminated when the power of the instantaneous image detection sensor 10 is cut off. After the above process, the Kentrol motherboard sends a shutdown signal to the PC.
상기와 같이 전송된 영상은 기입력된 데이터 값과 비교하여 일정수치의 범위에 따라 진단결과를 내일 수 있도록 하였다.The image transmitted as described above is compared with the input data value so that the diagnosis result can be produced according to a range of predetermined values.
상기 프로그램은 전송되어온 동영상의 각 프레임을 분석하여 가장 좋은 영상을 발췌하고, 분석을 수행하도록 이루어 진다. 본 발명은 X선이 방사되는 시간과 센서의 반응시간, 한 프레임을 구성하는 시간적 타이밍을 동기화하여 영상을 얻어내는 기존의 방식에 비하여 짧은 방사시간을 갖게 되며, 이는 높은 수준의 X선 발생기를 이용하여 선명한 영상을 얻으면서도 피폭되는 선량을 최소화할 수 있도록 하였다.The program extracts the best image by analyzing each frame of the transmitted video and performs the analysis. The present invention has a short emission time compared to the conventional method of synchronizing the time that the X-rays are radiated with the sensor response time and the temporal timing constituting one frame to obtain an image, which uses a high level X-ray generator. It is possible to minimize the exposure dose while obtaining a clear image.
골밀도분석 소프트웨어는 에지검출, 코릴레이션 등의 영상처리 테크닉에 의하여 정확한 ROI(Resion of Interest)를 설정하게 되고, 이를 레퍼런스 웨지(Wedge)와 비교하여 재현성을 확보한 후, 피검자의 골밀도를 진단하도록 되어 있다. 또한, 본 발명의 소프트웨어는 추가 기능으로 환자 데이터베이스, 골밀도 추이변화, 성장판 영상, 성장기 어린이의 표준 신체 정보, 동/서양이 구분된 골밀도 레퍼런스 등의 다양한 기능을 제공한다.Bone density analysis software sets up accurate ROI (Resion of Interest) by image processing techniques such as edge detection and correlation, and compares it with a reference wedge to secure reproducibility and diagnose bone density of a subject. have. In addition, the software of the present invention provides various functions as additional functions such as a patient database, bone density change, growth plate image, standard body information of a growing child, east / western bone density reference.
예컨대, 본 발명은 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형 실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위내에 있게 된다For example, the present invention is not limited to the preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the invention as claimed in the claims. Such changes will fall within the scope of the claims.
상기한 바와 같이 본 발명은 협소한 장소에서 이동 설치가 용이한 효과가 있다. 또한, X선의 방출시간을 최소화시키므로 인체에 미치는 나쁜 영향을 감소하도록 하였다.As described above, the present invention has an effect of easily moving and installing in a narrow place. In addition, it minimizes the emission time of the X-ray to reduce the adverse effect on the human body.
특히, 영상에서 성장판을 취득 분석하여 기입력된 데이터와 비교하여 성장상태(개폐여부확인)의 진단할 수 있는 효과가 있으므로 골밀도 측정 및 성장판 진단산업상 매우 유용한 발명인 것이다.In particular, the growth plate in the image is analyzed and compared with the inputted data, so that the growth state (check whether the opening and closing) can be diagnosed, it is a very useful invention for bone density measurement and growth plate diagnostic industry.
도 1은 본 발명의 바람직한 실시예의 증감지 비투과방식의 구조를 이용한 골밀도 진단장치를 도시한 구성도,1 is a block diagram showing a bone density diagnosis apparatus using the structure of the sensitizer non-transmissive method of the preferred embodiment of the present invention,
도 2는 본 발명의 증감지 비투과방식의 구조를 이용한 골밀도 진단장치의 엑스레이(x-ray)디텍터와 증감지와 카메라의 배치상태도,2 is an arrangement state of the x-ray detector, the sensitizer and the camera of the bone density diagnosis apparatus using the sensitizer non-transmissive structure of the present invention;
도 3은 본 발명의 검상대상인 발을 거치공강부에 올려놓은 사용상태도,Figure 3 is a state of use on the foot of the examination subject of the present invention mounted on the steel hole,
도 4는 본 발명의 골밀도 진단결과를 도시한 디스플레이 상태도,4 is a display state diagram showing the bone density diagnosis results of the present invention,
도 5는 본 발명의 성장판 진단결과를 도시한 디스플레이 상태도이다.5 is a display state diagram showing a growth plate diagnostic result of the present invention.
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1 : 외부전원단자 2 : 엑스레이(x-ray)디텍터 받침대1: External power terminal 2: X-ray detector base
3 : 고압제너레이터 4 : 제어부3: high pressure generator 4: control unit
5 : 엑스레이(x-ray)디텍터 6 : 거치공간부5 x-ray detector 6 mounting part
7 : 웨지 8 : 증감지7: wedge 8: increase and decrease
9 : 초저조도 CCD 카메라 10 : 순간영상감지센서9: Ultra low light CCD camera 10: Instant image sensor
11 : 받침대 20 : 본체11: base 20: body
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| KR100953434B1 (en) * | 2009-12-22 | 2010-04-20 | 주식회사 제이엠텍 | Apparatus of measuring bone mineral density |
| US7983461B2 (en) | 2007-12-10 | 2011-07-19 | Electronics And Telecommunications Research Institute | Method and system for extracting distal radius metaphysis |
| US8050472B2 (en) | 2006-12-07 | 2011-11-01 | Electronics And Telecommunications Research Institute | Method of acquiring phalange edge image and system therefor |
| WO2015108315A1 (en) * | 2014-01-15 | 2015-07-23 | 정영자 | X-ray imaging device |
| CN118614946A (en) * | 2024-08-09 | 2024-09-10 | 山东华锐影像设备有限公司 | Bone mineral density measuring method and system |
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| US5302817A (en) * | 1991-06-21 | 1994-04-12 | Kabushiki Kaisha Toshiba | X-ray detector and X-ray examination system utilizing fluorescent material |
| JPH0722580B2 (en) * | 1992-05-20 | 1995-03-15 | アロカ株式会社 | Bone evaluation device |
| JPH0775606B2 (en) * | 1993-06-30 | 1995-08-16 | アロカ株式会社 | Biological tissue diagnostic device |
| DE69933478T2 (en) * | 1998-06-18 | 2007-06-28 | Hamamatsu Photonics K.K., Hamamatsu | Scintillator panel and radiation image sensor |
| KR20020073955A (en) * | 2001-03-17 | 2002-09-28 | 주식회사 티아이티씨 | Detecting apparatus of X-ray image and method thereof |
| KR20010102866A (en) * | 2001-09-05 | 2001-11-17 | 정두락 | Remote diagnosis system of osteoporosis |
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| US7983461B2 (en) | 2007-12-10 | 2011-07-19 | Electronics And Telecommunications Research Institute | Method and system for extracting distal radius metaphysis |
| KR100953434B1 (en) * | 2009-12-22 | 2010-04-20 | 주식회사 제이엠텍 | Apparatus of measuring bone mineral density |
| WO2015108315A1 (en) * | 2014-01-15 | 2015-07-23 | 정영자 | X-ray imaging device |
| CN118614946A (en) * | 2024-08-09 | 2024-09-10 | 山东华锐影像设备有限公司 | Bone mineral density measuring method and system |
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