KR20100133921A - Jaw orthopedic bone mineral density measurement device - Google Patents
Jaw orthopedic bone mineral density measurement device Download PDFInfo
- Publication number
- KR20100133921A KR20100133921A KR1020100056239A KR20100056239A KR20100133921A KR 20100133921 A KR20100133921 A KR 20100133921A KR 1020100056239 A KR1020100056239 A KR 1020100056239A KR 20100056239 A KR20100056239 A KR 20100056239A KR 20100133921 A KR20100133921 A KR 20100133921A
- Authority
- KR
- South Korea
- Prior art keywords
- jaw
- bone
- ray generator
- ray
- mineral density
- Prior art date
Links
- 238000001739 density measurement Methods 0.000 title abstract description 7
- 210000000988 bone and bone Anatomy 0.000 title abstract description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 title abstract 4
- 239000011707 mineral Substances 0.000 title abstract 4
- 230000000399 orthopedic effect Effects 0.000 title 1
- 230000037182 bone density Effects 0.000 claims description 21
- 238000005259 measurement Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 239000007943 implant Substances 0.000 abstract description 3
- 238000002591 computed tomography Methods 0.000 abstract 1
- 238000002247 constant time method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/51—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for dentistry
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/505—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of bone
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Radiology & Medical Imaging (AREA)
- Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
Description
본 발명은 CT방식에의한 악골의 골밀도 측정장치에 관한 것으로서, 상세하게는 에너지가 상호 다른 이중 방사선을 이용하여 악골의 골밀도를 측정하는 장치에 관한 것이다.The present invention relates to a device for measuring the bone density of the jaw bone by the CT method, and more particularly, to an apparatus for measuring the bone density of the jaw bone using dual radiation having different energy.
최근, 치아가 손상된 경우 손상된 치아를 제거하고, 제거된 치아 위치의 악골에 임플란트를 식립하는 기술이 널리 활용되고 있다.Recently, a technique of removing a damaged tooth when the tooth is damaged and placing the implant in the jaw of the removed tooth position has been widely used.
그런데, 악골의 골밀도에 따라 임플란트의 식재가 불가능한 경우가 있어 골밀도에 대한 정확한 측정이 매우 중요하다.By the way, according to the bone density of the jaw bone implants may not be possible, so accurate measurement of bone density is very important.
본 발명은 상기와 같은 요구사항을 해결하기 위하여 창안된 것으로서, 악골의 골밀도를 방사선을 이용하여 측정할 수 있는 CT방식에 의한 악골의 골밀도 측정장치를 제공하는데 그 목적이 있다.The present invention has been made to solve the above requirements, and an object of the present invention is to provide a bone density measurement apparatus of jaw bone by CT method which can measure bone density of jaw bone using radiation.
상기의 목적을 달성하기 위하여 본 발명에 따른 CT방식에 의한 악골의 골밀도 측정장치는 측정대상 인체의 악골을 향해 엑스선을 출사하되 상호 다른 에너지를 갖는 엑스선을 출사할 수 있도록 된 엑스선 발생기와; 상기 엑스선 발생기를 제어신호에 따라 회전시키면서 스캔하는 스캔구동부와; 상기 엑스선 발생기에서 출사되어 상기 악골을 투과한 엑스선을 검출하는 엑스선 검출기와; 상기 스캔구동부 및 엑스선 발생기의 구동을 제어하는 구동제어부와; 상기 구동제어부를 제어하며 상기 엑스선 검출기에서 출력되는 정보를 기록하고, 기록된 정보로부터 상기 악골의 골밀도를 측정하여 표시부를 통해 표시처리하는 분석처리부;를 구비한다.In order to achieve the above object, the bone density measurement apparatus of the jaw bone by the CT method according to the present invention comprises: an X-ray generator which emits X-rays toward the jawbone of a human body to be measured but emits X-rays having different energies; A scan driver scanning the X-ray generator while rotating the X-ray generator according to a control signal; An X-ray detector for detecting X-rays emitted from the X-ray generator and penetrating the jawbone; A driving controller controlling driving of the scan driver and the X-ray generator; And an analysis processing unit which controls the driving control unit, records information output from the X-ray detector, measures the bone density of the jawbone from the recorded information, and displays the information through the display unit.
본 발명에 따른 CT방식에 의한 악골의 골밀도 측정장치에 의하면, 악골에 대한 골밀도를 측정하여 제공할 수 있어 임플란트 시술 가능 여부에 대한 진단을 정밀하게 할 수 있다. According to the apparatus for measuring the bone density of the jaw bone by the CT method according to the present invention, the bone density of the jaw bone can be measured and provided, thereby making it possible to precisely diagnose whether implantation is possible.
도 1은 본 발명에 따른 CT방식에 의한 악골의 골밀도 측정장치를 나타내보인 블록도이다.1 is a block diagram showing an apparatus for measuring bone density of jaw bone by CT method according to the present invention.
이하, 첨부된 도면을 참조하면서 본 발명의 바람직한 실시 예에 따른 CT방식에 의한 악골의 골밀도 측정장치를 더욱 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in more detail the bone density measurement apparatus of the jaw bone by the CT method according to an embodiment of the present invention.
도 1은 본 발명에 따른 CT방식에 의한 악골의 골밀도 측정장치를 나타내보인 블록도이다.1 is a block diagram showing an apparatus for measuring bone density of jaw bone by CT method according to the present invention.
도 1을 참조하면, 악골의 골밀도 측정장치(100)는 엑스선 발생기(110), 엑스선 검출기(130), 스캔구동부(140), 구동제어부(150), 분석처리부(160), 입력부(170) 및 표시부(180)를 구비한다.Referring to FIG. 1, the bone
엑스선 발생기(110)는 측정대상 인체의 악골을 향해 엑스선을 출사하되 상호 다른 에너지를 갖는 엑스선을 구동제어부(150)에 제어되어 선택적으로 출사할 수 있도록 되어 있다.The
엑스선 검출기(130)는 엑스선 발생기(110)에서 출사되어 악골을 투과한 엑스선을 검출하여 분석처리부(160)로 제공한다.The
바람직하게는 엑스선 검출기(130)는 엑스선 발생기(110)에서 출사된 엑스선에 감응하여 형광물질을 방사하는 리셉터와 리셉터에서 출사되는 광을 수신하는 CCD어레이로된 CR검출기가 적용된다.Preferably, the
스캔구동부(140)는 엑스선 발생기(110)를 제어신호에 따라 스캔한다. 스캔구동부(140)는 스캔시 엑스선 검출부(130)도 제1 및 제2엑스선 발생기(110)(120)에 대향되는 위치에 위치되도록 대응되게 회전되도록 제어한다.The
구동제어부(150)는 스캔구동부(140) 및 엑스선 발생기(110)의 구동을 제어한다.The
분석처리부(160)는 구동제어부(150)를 제어하며 엑스선 검출기(130)에서 출력되는 정보를 기록하고, 기록된 정보로부터 악골의 골밀도를 측정하여 표시부(180)를 통해 표시처리한다.The
입력부(170)는 스캔각도범위, 스캔각도 간격 등 지원되는 설정조건을 입력할 수 있도록 되어 있다.The
이러한 악골의 골밀도 측정장치(100)에 의한 골밀도 측정과정을 이하에서 설명한다.The bone density measurement process by the bone
먼저, 측정대상 악골에 에너지가 상호 다른 엑스선을 스캔각도 범위에 따라 각각 스캔하면서 조사한다. 스캔각도는 1°간격으로 270°범위까지 스캔한다.First, the X-rays of different energies are scanned while scanning each of the jaw bones according to the scan angle range. Scan angles are scanned in the 270 ° range at 1 ° intervals.
다음은 악골을 투과하여 검출된 엑스선 검출정보로부터 악골의 골밀도를 산출한다.Next, the bone density of the jaw is calculated from the X-ray detection information detected through the jaw.
즉, 270°범위까지 스캔하여 얻은 단면의 이미지를 정수값에 의한 CT(Computerrized Tomography)넘버(Number)를 얻고, CT의 voxel을 값으로 치환한 다음 밀도값을 산출한다. 이 때 엑스선 검출기(130)에서 검출된 영상의 단면이미지를 재구성하여 수많은 작은 블록을 복셀(voxel)이라고 하며, 복셀은 엑스선 에너지의 감약과 비례한 값을 갖는다. 복셀의 두께는 측정 가능한 값이므로 하나의 복셀의 선감약계수는 지수감약공식을 이용하여 구할 수 있다.That is, a CT (Computerized Tomography) number (Number) based on an integer value is obtained from an image of a cross section obtained by scanning to a range of 270 °, the voxel of the CT is replaced with a value, and then a density value is calculated. At this time, a number of small blocks are called voxels by reconstructing a cross-sectional image of the image detected by the
또한, 스캔방향을 1°간격으로 하여 방향이 상호 다른 270개의 추가 정보를 가지고 있어 회전공식과 방정식을 이용하여 복셀의 선감약계수를 구하면 된다.In addition, the scan direction has 270 additional information with different directions, with the scan direction spaced at 1 °, and the line loss coefficient of the voxel can be obtained by using the rotation formula and equation.
이러한 정보를 데이터 베이스화하고, 구축된 데이터 베이스와 촬영한 악골의 골질과 골량을 비교하여 골밀도를 산출한다.This information is made into a database, and bone density is calculated by comparing the constructed database with the bone quality and bone mass of the taken jaw.
즉, 골밀도(BMD)는 BMD=BMC/Area로 표현할 수 있고, BMC=KH-L이며, 여기서, K=(Htisnum- Hairnum)-(Ltisnum -Lairnum)이며, tisnum은 검사대상 조직(tisue)의 CT 넘버이고, airnum은 공기에 대한 CT 넘버이다.In other words, BMD can be expressed as BMD = BMC / Area, BMC = KH-L, where K = (Htisnum-Hairnum)-(Ltisnum-Lairnum), and tisnum is the target tissue. CT number, airnum is the CT number for the air.
110: 엑스선 발생기, 130: 엑스선 검출기110: X-ray generator, 130: X-ray detector
Claims (1)
상기 엑스선 발생기를 제어신호에 따라 회전시키면서 스캔하는 스캔구동부와;
상기 엑스선 발생기에서 출사되어 상기 악골을 투과한 엑스선을 검출하는 엑스선 검출기와;
상기 스캔구동부 및 엑스선 발생기의 구동을 제어하는 구동제어부와;
상기 구동제어부를 제어하며 상기 엑스선 검출기에서 출력되는 정보를 기록하고, 기록된 정보로부터 상기 악골의 골밀도를 측정하여 표시부를 통해 표시처리하는 분석처리부;를 구비하는 것을 특징으로 하는 CT방식에 의한 악골의 골밀도 측정장치.An X-ray generator configured to emit X-rays toward the jaw of the measurement target body and to emit X-rays having different energies;
A scan driver scanning the X-ray generator while rotating the X-ray generator according to a control signal;
An X-ray detector for detecting X-rays emitted from the X-ray generator and penetrating the jawbone;
A driving controller controlling driving of the scan driver and the X-ray generator;
And an analysis processing unit for controlling the driving control unit, recording the information output from the X-ray detector, measuring the bone density of the jawbone from the recorded information, and displaying the information through the display unit. Bone density measuring device.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090052241 | 2009-06-12 | ||
KR20090052241 | 2009-06-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20100133921A true KR20100133921A (en) | 2010-12-22 |
KR101271255B1 KR101271255B1 (en) | 2013-06-10 |
Family
ID=43509073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020100056239A KR101271255B1 (en) | 2009-06-12 | 2010-06-14 | Jaw Orthopedic Bone Mineral Density Measurement Device |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101271255B1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180038319A (en) | 2016-10-06 | 2018-04-16 | 주식회사 메가젠임플란트 | Mobile iinked implant diagnosis system |
KR20190018913A (en) * | 2017-08-16 | 2019-02-26 | 서울대학교산학협력단 | System and method for measuring bone mineral density |
KR20190074098A (en) | 2017-12-19 | 2019-06-27 | 주식회사 키스톤 | Dental implant procedure guide device, dental implant procedure guide device manufacturing system and methode the same |
KR20190074097A (en) | 2017-12-19 | 2019-06-27 | 주식회사 키스톤 | Image Generation System for implant Diagnosis and image Generation methode the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160061722A (en) | 2014-11-24 | 2016-06-01 | 차상민 | Ultrasonic tooth bone mineral density system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2184237A1 (en) * | 1995-09-08 | 1997-03-09 | Jay A. Stein | X-ray bone densitometry |
JP3974842B2 (en) * | 2002-10-30 | 2007-09-12 | アロカ株式会社 | X-ray bone density measuring device |
KR100721007B1 (en) * | 2004-11-17 | 2007-05-23 | 주식회사 메디슨엑스레이 | X-ray probe apparatus |
JP4499593B2 (en) * | 2005-03-28 | 2010-07-07 | アロカ株式会社 | X-ray bone density measuring device |
-
2010
- 2010-06-14 KR KR1020100056239A patent/KR101271255B1/en active IP Right Grant
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180038319A (en) | 2016-10-06 | 2018-04-16 | 주식회사 메가젠임플란트 | Mobile iinked implant diagnosis system |
KR20190018913A (en) * | 2017-08-16 | 2019-02-26 | 서울대학교산학협력단 | System and method for measuring bone mineral density |
KR20190074098A (en) | 2017-12-19 | 2019-06-27 | 주식회사 키스톤 | Dental implant procedure guide device, dental implant procedure guide device manufacturing system and methode the same |
KR20190074097A (en) | 2017-12-19 | 2019-06-27 | 주식회사 키스톤 | Image Generation System for implant Diagnosis and image Generation methode the same |
Also Published As
Publication number | Publication date |
---|---|
KR101271255B1 (en) | 2013-06-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Razavi et al. | Accuracy of measuring the cortical bone thickness adjacent to dental implants using cone beam computed tomography | |
Dave et al. | A comparison of cone beam computed tomography and conventional periapical radiography at detecting peri‐implant bone defects | |
Alqerban et al. | In-vitro comparison of 2 cone-beam computed tomography systems and panoramic imaging for detecting simulated canine impaction-induced external root resorption in maxillary lateral incisors | |
Brady et al. | A comparison of cone beam computed tomography and periapical radiography for the detection of vertical root fractures in nonendodontically treated teeth | |
JP5336364B2 (en) | Gain calibration of X-ray detector according to the ratio of scattered radiation | |
KR101271255B1 (en) | Jaw Orthopedic Bone Mineral Density Measurement Device | |
JP2006026417A (en) | Selection of phantom for computer type tomographic dose index measurement for dose report | |
JP2004147863A (en) | X-ray bone density measuring apparatus | |
US8085898B2 (en) | Apparatus for bone density assessment and monitoring | |
Hashem et al. | An in vitro comparison of the accuracy of measurements obtained from high-and low-resolution cone-beam computed tomography scans | |
JP6753708B2 (en) | Medical diagnostic imaging equipment | |
US10806419B2 (en) | X-ray CT apparatus, X-ray CT system, and injector | |
US20140348292A1 (en) | Radiographic apparatus | |
Raichur et al. | Comparison of radiovisiography and digital volume tomography to direct surgical measurements in the detection of infrabony defects | |
Lakshmikantha et al. | Assessment of cortical bone microdamage following insertion of microimplants using optical coherence tomography: a preliminary study | |
Sakhdari et al. | Diagnostic accuracy of CBCT with different voxel sizes and intraoral digital radiography for detection of periapical bone lesions: an ex-vivo study | |
Maddalone et al. | Cone‐beam computed tomography accuracy in pulp chamber size evaluation: an ex vivo study | |
KR20150057013A (en) | Apparatus, Method and Target Panthom for Obtaining Computed Tomography and CT Image Using The Same | |
US20130251101A1 (en) | X-ray ct apparatus and method for controlling the same | |
RU2400141C2 (en) | Method of bone mineral density analysis | |
KR101367812B1 (en) | image diagnosis device including X-ray image tomosynthesis device and photoacoustic image device and image diagnosis method thereof | |
JP2013536412A (en) | Method for correcting radiation detectors using voltage | |
CN215078792U (en) | Equipment for measuring bone density through oral cavity cone beam CT | |
Azhari et al. | The influence of alteration of kvp and mas towards the image quality of acrylic using cbct | |
RU2352252C1 (en) | Radiographic equipment for medical diagnostics |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E90F | Notification of reason for final refusal | ||
E701 | Decision to grant or registration of patent right | ||
N231 | Notification of change of applicant | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20160407 Year of fee payment: 4 |
|
FPAY | Annual fee payment |
Payment date: 20170321 Year of fee payment: 5 |
|
FPAY | Annual fee payment |
Payment date: 20180308 Year of fee payment: 6 |
|
FPAY | Annual fee payment |
Payment date: 20190325 Year of fee payment: 7 |