FI20175244L - Itsekalibroiva lääketieteellinen kuvannuslaite - Google Patents

Itsekalibroiva lääketieteellinen kuvannuslaite Download PDF

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Publication number
FI20175244L
FI20175244L FI20175244A FI20175244A FI20175244L FI 20175244 L FI20175244 L FI 20175244L FI 20175244 A FI20175244 A FI 20175244A FI 20175244 A FI20175244 A FI 20175244A FI 20175244 L FI20175244 L FI 20175244L
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FI
Finland
Prior art keywords
ray
projection
cbct
self
projection images
Prior art date
Application number
FI20175244A
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English (en)
Swedish (sv)
Other versions
FI131860B1 (fi
FI20175244A1 (fi
Inventor
Mikko Lilja
Kalle Karhu
Jaakko Lähelmä
Kustaa Nyholm
Ari Hietanen
Sakari Kettunen
Timo Müller
Original Assignee
Planmeca Oy
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
Priority to FI20175244A priority Critical patent/FI131860B1/fi
Application filed by Planmeca Oy filed Critical Planmeca Oy
Priority to BR112019019206-9A priority patent/BR112019019206B1/pt
Priority to EP18723569.2A priority patent/EP3595528B1/en
Priority to RU2019131095A priority patent/RU2766743C1/ru
Priority to KR1020197030330A priority patent/KR102369653B1/ko
Priority to PCT/FI2018/000005 priority patent/WO2018167355A1/en
Priority to CN201880028718.8A priority patent/CN110602990B/zh
Priority to JP2019551297A priority patent/JP7116078B2/ja
Priority to US15/925,667 priority patent/US10636179B2/en
Publication of FI20175244L publication Critical patent/FI20175244L/fi
Publication of FI20175244A1 publication Critical patent/FI20175244A1/fi
Application granted granted Critical
Publication of FI131860B1 publication Critical patent/FI131860B1/fi

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    • G06T12/30—
    • 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
    • A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4064—Arrangements for generating radiation specially adapted for radiation diagnosis specially adapted for producing a particular type of beam
    • A61B6/4085—Cone-beams
    • 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
    • A61B6/46—Arrangements for interfacing with the operator or the patient
    • A61B6/461—Displaying means of special interest
    • A61B6/466—Displaying means of special interest adapted to display 3D data
    • 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
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5258—Devices using data or image processing specially adapted for radiation diagnosis involving detection or reduction of artifacts or noise
    • A61B6/5264—Devices using data or image processing specially adapted for radiation diagnosis involving detection or reduction of artifacts or noise due to motion
    • G06T12/10—
    • G06T12/20—
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0012—Biomedical image inspection
    • 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
    • A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
    • A61B6/4441—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm
    • 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
    • A61B6/501—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 the head, e.g. neuroimaging or craniography
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G06T2207/10081—Computed x-ray tomography [CT]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10116—X-ray image
    • G06T2207/10124—Digitally reconstructed radiograph [DRR]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/424—Iterative

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Pulmonology (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Neurosurgery (AREA)
  • Neurology (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)

Abstract

Geometrinen itsekalibrointimenetelmä kartiokeilatietokonetomografiaan (CBCT), joka perustuu röntgenprojektiokuvien mittauksen aikaisen röntgenlähteen ja -detektorin sijainti- ja asentotiedon sisältävän alustavan projektiogeometriaestimaatin iteratiiviseen tarkentamiseen. Mitattuja röntgenprojektiokuvia käytetään väliaikaisten CBCT-rekonstruktioiden laskemiseen ja projektiokuvakohtaiset geometriset korj ausmuunnokset määritetään maksimoimalla mitattujen röntgenprojektiokuvien ja väliaikaisen CBCT-rekonstruktion laskennallisten projektiokuvien samankaltaisuus. Geometriset korjausmuunnokset määritetään röntgenprojektiokuvakohtaisessa pyörivässä koordinaatistossa, joka vastaa röntgenlähteen ja -detektorin sijaintia ja asentoa röntgenprojektiokuvien mittaamisen aikana. Lopullinen CBCT-rekonstruktio lasketaan käyttäen tarkennettua projektiogeometriaestimaattia.
FI20175244A 2017-03-17 2017-03-17 Itsekalibroiva lääketieteellinen kuvannuslaite FI131860B1 (fi)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FI20175244A FI131860B1 (fi) 2017-03-17 2017-03-17 Itsekalibroiva lääketieteellinen kuvannuslaite
EP18723569.2A EP3595528B1 (en) 2017-03-17 2018-03-19 Patient movement correction for cone-beam computed tomography
RU2019131095A RU2766743C1 (ru) 2017-03-17 2018-03-19 Способ коррекции перемещения пациента для конусно-лучевой компьютерной томографии
KR1020197030330A KR102369653B1 (ko) 2017-03-17 2018-03-19 콘-빔 컴퓨터 단층촬영을 위한 환자 움직임 정정 방법
BR112019019206-9A BR112019019206B1 (pt) 2017-03-17 2018-03-19 Método de correção de movimento de paciente para tomografia computadorizada de feixe cônico, meio de armazenamento legível por computador, e, aparelho
PCT/FI2018/000005 WO2018167355A1 (en) 2017-03-17 2018-03-19 Patient movement correction method for cone-beam computed tomography
CN201880028718.8A CN110602990B (zh) 2017-03-17 2018-03-19 用于锥形束计算机断层扫描的患者移动校正方法
JP2019551297A JP7116078B2 (ja) 2017-03-17 2018-03-19 コーンビーム型コンピュータ断層撮影における患者の動き補正方法
US15/925,667 US10636179B2 (en) 2017-03-17 2018-03-19 Patient movement correction method for cone-beam computed tomography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20175244A FI131860B1 (fi) 2017-03-17 2017-03-17 Itsekalibroiva lääketieteellinen kuvannuslaite

Publications (3)

Publication Number Publication Date
FI20175244L true FI20175244L (fi) 2018-09-18
FI20175244A1 FI20175244A1 (fi) 2018-09-18
FI131860B1 FI131860B1 (fi) 2026-01-13

Family

ID=62143215

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20175244A FI131860B1 (fi) 2017-03-17 2017-03-17 Itsekalibroiva lääketieteellinen kuvannuslaite

Country Status (8)

Country Link
US (1) US10636179B2 (fi)
EP (1) EP3595528B1 (fi)
JP (1) JP7116078B2 (fi)
KR (1) KR102369653B1 (fi)
CN (1) CN110602990B (fi)
FI (1) FI131860B1 (fi)
RU (1) RU2766743C1 (fi)
WO (1) WO2018167355A1 (fi)

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CN113963056A (zh) * 2021-09-07 2022-01-21 于留青 Ct图像重建方法、装置、电子设备以及存储介质
CN116894798A (zh) * 2023-09-11 2023-10-17 金华飞光科技有限公司 光固化3d打印机的投影畸形矫正方法及系统

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CN110766629B (zh) * 2019-10-17 2022-03-01 广州华端科技有限公司 Cbct系统几何校正方法、装置、计算机设备和存储介质
CN111553849B (zh) * 2020-03-28 2023-03-24 中国人民解放军战略支援部队信息工程大学 基于局部特征匹配的锥束ct几何伪影去除方法及装置
CN113520421A (zh) * 2020-05-06 2021-10-22 北京友通上昊科技有限公司 X射线切面成像方法、存储介质及成像系统
CN112529820B (zh) * 2020-12-29 2024-06-14 广州开云影像科技有限公司 Cbct系统半扇束几何校正方法、装置、设备和介质
CN112837246A (zh) * 2021-03-25 2021-05-25 中科超精(南京)科技有限公司 一种图像引导系统几何校正方法
US11712215B2 (en) 2021-04-13 2023-08-01 Canon Medical Systems Corporation Devices, systems, and methods for motion-corrected medical imaging
JP7563304B2 (ja) * 2021-06-16 2024-10-08 トヨタ自動車株式会社 Ｘ線ｃｔ装置及び画像生成方法
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Publication number Priority date Publication date Assignee Title
CN113963056A (zh) * 2021-09-07 2022-01-21 于留青 Ct图像重建方法、装置、电子设备以及存储介质
CN116894798A (zh) * 2023-09-11 2023-10-17 金华飞光科技有限公司 光固化3d打印机的投影畸形矫正方法及系统
CN116894798B (zh) * 2023-09-11 2023-12-05 金华飞光科技有限公司 光固化3d打印机的投影畸形矫正方法及系统

Also Published As

Publication number Publication date
JP2020509887A (ja) 2020-04-02
KR20190126882A (ko) 2019-11-12
BR112019019206A2 (pt) 2020-04-14
WO2018167355A1 (en) 2018-09-20
EP3595528C0 (en) 2023-07-19
EP3595528A1 (en) 2020-01-22
CN110602990B (zh) 2023-09-01
US10636179B2 (en) 2020-04-28
CN110602990A (zh) 2019-12-20
FI131860B1 (fi) 2026-01-13
RU2766743C1 (ru) 2022-03-15
US20180268574A1 (en) 2018-09-20
FI20175244A1 (fi) 2018-09-18
JP7116078B2 (ja) 2022-08-09
EP3595528B1 (en) 2023-07-19
KR102369653B1 (ko) 2022-03-07

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