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WO2016111432A1 - Procédé et dispositif de photographie d'image - Google Patents

Procédé et dispositif de photographie d'image Download PDF

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Publication number
WO2016111432A1
WO2016111432A1 PCT/KR2015/007860 KR2015007860W WO2016111432A1 WO 2016111432 A1 WO2016111432 A1 WO 2016111432A1 KR 2015007860 W KR2015007860 W KR 2015007860W WO 2016111432 A1 WO2016111432 A1 WO 2016111432A1
Authority
WO
WIPO (PCT)
Prior art keywords
ray
image
rotation
rotating
ray sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2015/007860
Other languages
English (en)
Korean (ko)
Inventor
박무용
이동율
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osstem Implant Co Ltd
Original Assignee
Osstem Implant Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osstem Implant Co Ltd filed Critical Osstem Implant Co Ltd
Publication of WO2016111432A1 publication Critical patent/WO2016111432A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • A61B6/02—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
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission 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
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • 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
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • 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
    • A61B6/54—Control of apparatus or devices for radiation diagnosis

Definitions

  • the present invention relates to an imaging method and apparatus, and more particularly, to a dental CT image taking a dental CT image does not affect the diagnosis even if the central portion is empty, such as a CT image of the tooth, the central portion is empty
  • the present invention relates to an image capturing method and apparatus capable of reducing a material cost by photographing a CT image.
  • the dentist is provided with an X-ray imaging apparatus capable of performing X-ray imaging to determine the condition of the teeth and alveolar bone for the purpose of treating teeth and various periodontal diseases or the correction of orthodontics.
  • the X-ray imaging apparatus used in dentistry transmits a certain amount of X-rays to a tooth portion, which is a body part to be photographed, senses the intensity of the transmitted X-rays, converts it into an electrical signal corresponding to the X-ray intensity, and then sends it to a computer.
  • the computer obtains an image by processing the X-ray intensity of each point of the body imaging region and processing it.
  • X-ray imaging apparatuses for CT Computerized Tomography
  • X-ray imaging apparatuses for panoramas capable of capturing two-dimensional planes are mainly used.
  • CT X-ray imaging apparatus is an imaging device that shows a tomographic plane of the body that cannot be represented by normal photography.
  • the X-ray imaging apparatus rotates X-rays at a constant angle over 360 degrees and projects the transmitted X-rays to a human body. It is a tomography device that collects through and reconstructs the absorbed values of the cross section of the human body.
  • the panoramic X-ray photographing apparatus is to photograph the whole in the circumferential direction around the X-ray generator, it is a device that can take a panoramic view so that you can see the entire tooth condition and the jaw joint at a glance.
  • FIG. 1 is a perspective view illustrating a general dental imaging apparatus.
  • the dental imaging apparatus 10 includes a pedestal 11 supported by a floor of a building, and a support pillar provided on the pedestal 11 so as to be supported by the pedestal 11. 12a, the sliding rail 12b extending to the upper end of the support pillar 12a, the lifting portion 13 formed in an approximately 'a' shape so as to move up and down along the sliding rail 21, the lifting It is configured to include a gantry 14 coupled to the lower portion of the portion 13 through a rotation axis to be linearly movable and rotatable.
  • One side of the gantry 14 is provided with an X-ray source 15a for irradiating X-rays and a collimator 15b for adjusting the irradiation range of X-rays irradiated from the X-ray source 15a, and the gantry 14 On the other side of the X-ray sensor 16 is detected through the collimator to detect the X-rays passed through the receiver.
  • the CT scan method of the 'full scan' method has a merit in that the cylindrical CT image can be obtained only by 180 ° rotation, and the recording time is short, and the CT scan method of the 'half scan' method requires 360 ° rotation. Although it takes more time than the CT scan method of the 'Full scan' method, it is advantageous in that a wider area can be photographed than the CT scan method of the 'Full scan' method.
  • the center portion is empty by using a small area X-ray sensor for imaging the dental CT image does not affect the diagnosis even if the center portion is empty, such as CT images of the teeth
  • the present invention provides an image capturing method and apparatus capable of capturing CT images to reduce material costs.
  • the imaging method of the present invention for solving the technical problem, the X-ray source for irradiating the X-rays and the X-rays to the X-rays based on the virtual axis of rotation passing through one point eccentric in the X-ray irradiation path While imaging the CT image while rotating the X-ray sensor, a small area X-ray sensor to shoot the outer region of the central region including the rotation axis.
  • one image may be generated by synthesizing such that the central regions of the CT photographed images obtained by taking at least two images overlap each other.
  • the X-ray sensor may rotate while being spaced apart from a predetermined gap on a virtual rotation reference plane parallel to the X-ray irradiation path passing through the rotation axis.
  • the imaging method of the present invention for solving the technical problem, the X-ray source and the X-ray to irradiate the X-rays on the basis of the virtual first axis of rotation passing through one point eccentric in the X-ray irradiation path
  • the outer area photographed in the first photographing step overlaps the center area of the second photographing step, and the outer area photographed in the second photographing step can be photographed to overlap the center area of the first photographing step. have.
  • the imaging device of the present invention for solving the technical problem, the fixed body portion; A rotating body part having an X-ray source on one side and an X-ray sensor on the other side; And the fixed body part and the rotating body part, wherein the rotating body part is based on an imaginary rotation axis passing through an eccentric point in an X-ray irradiation path irradiated from the X-ray source to the X-ray sensor. It is configured to include; a rotation drive unit for rotating.
  • the rotary drive shaft provided in the rotating body portion corresponding to the position of the virtual rotation axis; And rotation driving means for rotating the rotation driving shaft.
  • the rotary drive shaft provided in the rotating body portion corresponding to one point of the irradiation path of the X-ray irradiated from the X-ray source to the X-ray sensor;
  • Rotary drive means for rotating the rotary drive shaft;
  • First reciprocating driving means for reciprocating the rotary driving means in one direction;
  • second reciprocating drive means for reciprocating the first reciprocating drive means in a direction crossing the reciprocating direction of the first reciprocating drive means.
  • the present invention allows the CT image of the center to be taken by using a small area X-ray sensor for imaging of a dental CT image that does not affect diagnosis even if the center is empty, such as a CT image of a tooth. There is an advantage that can be saved.
  • FIG. 1 is a perspective view illustrating a general dental imaging apparatus.
  • FIG. 2 is a view for explaining a CT scan by the conventional 'full scan' method.
  • 3 is a view for explaining the CT scan by the conventional 'Half scan' method.
  • FIG. 4 is a diagram for describing an image capturing method according to an embodiment of the present invention.
  • FIG. 5 is a view for explaining a process of synthesizing a plurality of CT images by the image capturing method according to an embodiment of the present invention.
  • FIG. 6 is a block diagram showing the configuration of an image photographing apparatus according to an embodiment of the present invention.
  • FIG. 7 is a block diagram showing the configuration of an image capturing apparatus according to another embodiment of the present invention.
  • the terms are used only for the purpose of distinguishing one component from another.
  • the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
  • An image capturing method is a method of capturing a CT image for diagnosing a dental condition of a patient, and scans the entire patient's teeth using a small area X-ray sensor (SR). That's how it is.
  • SR small area X-ray sensor
  • the image capturing method of the present embodiment as shown in (a) of Figure 4, the virtual axis of rotation (RX) passing through a point eccentrically by the length 'd1' in the X-ray irradiation path (R)
  • the CT image is taken while rotating the X-ray source LT for irradiating the X-ray and the X-ray sensor SR for sensing the X-ray.
  • the X-ray sensor SR is a size that can be rotated while maintaining a predetermined distance (d2) spaced apart from the virtual rotation reference plane parallel to the X-ray irradiation path (R) passing through the rotation axis (RX) It consists of a small-area sensor of the outside area S, except for the central area (S ') including the rotation axis (RX) by the small area X-ray sensor (SR).
  • the outer area (S) taken by the small area X-ray sensor (SR) is the It is done to include tooth trajectories.
  • the central area S 'excluded from the photographing area is a part which is not necessary for imaging because it is not necessary for diagnosing the teeth of the examinee, and the outer area S includes the tooth trajectory of the examinee. It is possible to obtain a 3D image of.
  • a single image may be generated by synthesizing such that the central regions S1 ′ and S2 ′ of the CT captured images obtained by capturing at least twice through the above-described photographing method overlap each other. .
  • the method for this purpose is written including a first photographing step, a second photographing step, and an image synthesizing step.
  • the X-ray source LT for irradiating the X-rays with respect to the virtual first rotational axis RX1 passing through one point eccentrically in the X-ray irradiation path R and the X While taking a CT image while rotating the X-ray sensor SR for sensing a line, the small-area X-ray sensor so as to photograph the outer region S1 of the central region S1 ′ including the first rotation axis RX1.
  • SR the small-area X-ray sensor
  • a part of the outer area S1 photographed in the first photographing step overlaps the center area S2 ′ of the second photographing step, and a part of the outer area S2 photographed in the second photographing step is The image is taken to overlap the central area S1 ′ of the first photographing step, and the outer area S1 photographed in the first photographing step includes a part of the tooth trajectory of the examinee and is photographed in the second photographing step.
  • the outer area S2 is to include the remaining part of the tooth trajectory of the examinee.
  • the image synthesis step the first photographed image photographed in the first photographing step and the second photographed image photographed in the second photographing step are synthesized to generate one image.
  • the image capturing apparatus of the present exemplary embodiment includes a fixed body part 100, a rotating body part 200, and a rotation driving part 300.
  • the fixed body part 100 is a part for supporting the rotatable body part 200 so as to be rotatable.
  • the fixed body part 100 may correspond to the lifting part 13 of FIG. 1.
  • the rotating body portion 200 is coupled to the lower portion of the fixed body portion 100 through the rotation drive shaft 310 to be linearly moveable and rotatable, for example, to correspond to the gantry 14 of FIG. Can be.
  • the rotary drive unit 300 is configured to include the rotary drive shaft 310 to connect the fixed body portion 100 and the rotary body portion 200, the X-ray sensor (LT) in the X-ray source (LT)
  • the rotating body 200 is driven to rotate based on the virtual rotation axis RX passing through an eccentric point in the X-ray irradiation path R irradiated by SR.
  • the rotation driving unit 300 includes a rotation driving shaft 310 provided in the rotation body part 200 and the position corresponding to the position of the virtual rotation axis RX. It may be configured to include a rotary drive means 340 for rotating the rotary drive shaft 310.
  • the rotating body part 200 is rotated based on the rotation driving shaft 310 positioned corresponding to the position of the rotation axis RX, and the X-ray source LT ) And the X-ray sensor SR rotate in an eccentric state with respect to the rotation axis RX.
  • the rotation driving unit 300 as shown in Figure 7, one point of the irradiation path (R) of the X-rays irradiated from the X-ray source (LT) to the X-ray sensor (SR).
  • the rotary driving means 340 for driving the rotary driving shaft 310, the reciprocating movement of the rotary driving means 340 in one direction
  • a first reciprocating driving means 320 and the second reciprocating driving means 330 for reciprocating the first reciprocating driving means 320 in a direction crossing the reciprocating direction of the first reciprocating driving means 320 Can be configured.
  • the rotating body part 200 is rotated based on the rotation driving shaft 310, and the first reciprocating driving means 320 is rotated from 0 ° to 90 °.
  • the first reciprocating driving means 320 is rotated from 0 ° to 90 °.
  • the second reciprocating driving means 330 moves downward to the original position, and the first reciprocating driving means 320 is rotated from 180 ° to 270 ° in the section.
  • the first reciprocating driving means 320 While moving to the left side and the second reciprocating driving means 330 moves to the upper side of the drawing, the first reciprocating driving means 320 is moved to the right side of the drawing in a section that rotates from 270 ° to 0 °. The second reciprocating driving means 330 is returned to the position of It moves to the upper side of.
  • the X-ray source LT and the X-ray sensor SR are based on the rotation axis RX by interlocking the first reciprocating driving means 320 and the second reciprocating driving means 330. Rotate in an eccentric state.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

La présente invention concerne un procédé et un dispositif de photographie d'image, qui peut photographier une image TDM ayant une partie centrale vide de celui-ci au moyen d'un capteur de rayons X à aire faible afin de photographier une image TDM dentaire qui n'affecte pas un diagnostic même lorsqu'une partie centrale de l'image est vide comme dans une image TDM d'une dent et, par conséquent, peut réduire les coûts de matériau. À cet effet, le procédé de photographie d'image selon la présente invention est configuré pour photographier une image TDM en faisant tourner une source de rayons X, qui irradie des rayons X, et un capteur de rayons X, qui détecte les rayons X, en référence à un axe de rotation virtuel passant par un point dévié par rapport au trajet d'irradiation des rayons X, où l'image TDM est photographiée par le capteur de rayons X à aire faible de sorte qu'une zone externe de la zone centrale comprenant l'axe de rotation soit photographiée.
PCT/KR2015/007860 2015-01-08 2015-07-28 Procédé et dispositif de photographie d'image Ceased WO2016111432A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2015-0002512 2015-01-08
KR1020150002512A KR101661055B1 (ko) 2015-01-08 2015-01-08 영상 촬영 방법 및 장치

Publications (1)

Publication Number Publication Date
WO2016111432A1 true WO2016111432A1 (fr) 2016-07-14

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PCT/KR2015/007860 Ceased WO2016111432A1 (fr) 2015-01-08 2015-07-28 Procédé et dispositif de photographie d'image

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WO (1) WO2016111432A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110575189A (zh) * 2018-06-08 2019-12-17 株式会社森田制作所 X射线ct拍摄装置
CN114513605A (zh) * 2022-01-25 2022-05-17 重庆医药高等专科学校 一种图像拍摄大数据存储系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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KR102203630B1 (ko) * 2018-09-20 2021-01-18 오스템임플란트 주식회사 엑스선 영상 생성 방법, 엑스선 영상 생성 장치 및 컴퓨터 판독 가능한 기록 매체
KR102203610B1 (ko) * 2018-10-02 2021-01-18 오스템임플란트 주식회사 파노라마 영상 생성 방법, 파노라마 영상 생성 장치 및 컴퓨터 판독 가능한 기록 매체

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US20090168966A1 (en) * 2005-10-17 2009-07-02 Masakazu Suzuki Medical Digital X-Ray Imaging Apparatus and Medical Digital X-Ray Sensor
KR20100070817A (ko) * 2008-12-18 2010-06-28 주식회사바텍 3차원 영상획득 장치
WO2014037770A1 (fr) * 2012-09-07 2014-03-13 Trophy Appareil pour imagerie de tomographie par ordinateur (ct) partielle

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Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
JP2006314774A (ja) * 2005-04-11 2006-11-24 Morita Mfg Co Ltd スカウトビュー機能を備えたｘ線撮影装置
US20090168966A1 (en) * 2005-10-17 2009-07-02 Masakazu Suzuki Medical Digital X-Ray Imaging Apparatus and Medical Digital X-Ray Sensor
KR20080054702A (ko) * 2006-12-13 2008-06-19 주식회사바텍 파노라마 엑스선 촬영장치 및 이를 이용한 촬영방법
KR20100070817A (ko) * 2008-12-18 2010-06-28 주식회사바텍 3차원 영상획득 장치
WO2014037770A1 (fr) * 2012-09-07 2014-03-13 Trophy Appareil pour imagerie de tomographie par ordinateur (ct) partielle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110575189A (zh) * 2018-06-08 2019-12-17 株式会社森田制作所 X射线ct拍摄装置
CN110575189B (zh) * 2018-06-08 2022-10-04 株式会社森田制作所 X射线ct拍摄装置
CN114513605A (zh) * 2022-01-25 2022-05-17 重庆医药高等专科学校 一种图像拍摄大数据存储系统
CN114513605B (zh) * 2022-01-25 2024-03-05 重庆医药高等专科学校 一种图像拍摄大数据存储系统

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KR20160085942A (ko) 2016-07-19
KR101661055B1 (ko) 2016-09-29

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