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FI20065793L - X-ray photography apparatus and procedure for photographing the mandibular part - Google Patents

X-ray photography apparatus and procedure for photographing the mandibular part Download PDF

Info

Publication number
FI20065793L
FI20065793L FI20065793A FI20065793A FI20065793L FI 20065793 L FI20065793 L FI 20065793L FI 20065793 A FI20065793 A FI 20065793A FI 20065793 A FI20065793 A FI 20065793A FI 20065793 L FI20065793 L FI 20065793L
Authority
FI
Finland
Prior art keywords
jawbone
carrier element
unit
angular range
region
Prior art date
Application number
FI20065793A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20065793A7 (en
FI20065793A0 (en
Inventor
Henri Setaelae
Original Assignee
Palodex Group 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
Application filed by Palodex Group Oy filed Critical Palodex Group Oy
Priority to FI20065793A priority Critical patent/FI20065793L/en
Publication of FI20065793A0 publication Critical patent/FI20065793A0/en
Priority to PCT/FI2007/050646 priority patent/WO2008071835A1/en
Publication of FI20065793A7 publication Critical patent/FI20065793A7/en
Publication of FI20065793L publication Critical patent/FI20065793L/en

Links

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]
    • A61B6/032—Transmission computed tomography [CT]
    • G06T12/00—
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/436—Limited angle

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Biophysics (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)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

The invention relates to an X-ray imaging unit and method for imaging the jawbone region for providing slice images of the region of interest. The unit includes a carrier element which comprises an X-ray source (20) disposed on one side of the object and a receiving means (21) disposed on the side of the object opposite from the X- ray source for receiving the radiation transmitted through the object for providing projection images. The carrier element is adapted to rotate around its rotation axis such that the X-ray source and the receiving means revolve around the object. The unit is adapted to effect a spinning motion of the carrier element around an object substantially stationary relative to the unit such that, during the spinning motion, the carrier element's rotation axis advances along a path which substantially follows the jawbone anatomy. During said spinning motion, projection images of the jawbone over a limited angular range are produced such that areas inside the jawbone arch remain substantially unexposed to radiation. The unit comprises computing means for working out reconstructed volume models by effecting the computation with at least one angular range reconstruction process on the basis of said projection images of a limited angular range, and computing means for working out the required slice images of the region of interest on the basis of said volume models.
FI20065793A 2006-12-12 2006-12-12 X-ray photography apparatus and procedure for photographing the mandibular part FI20065793L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20065793A FI20065793L (en) 2006-12-12 2006-12-12 X-ray photography apparatus and procedure for photographing the mandibular part
PCT/FI2007/050646 WO2008071835A1 (en) 2006-12-12 2007-11-29 X-ray imaging unit and method for imaging the jawbone region

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20065793A FI20065793L (en) 2006-12-12 2006-12-12 X-ray photography apparatus and procedure for photographing the mandibular part

Publications (3)

Publication Number Publication Date
FI20065793A0 FI20065793A0 (en) 2006-12-12
FI20065793A7 FI20065793A7 (en) 2008-06-13
FI20065793L true FI20065793L (en) 2008-06-13

Family

ID=37623809

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20065793A FI20065793L (en) 2006-12-12 2006-12-12 X-ray photography apparatus and procedure for photographing the mandibular part

Country Status (2)

Country Link
FI (1) FI20065793L (en)
WO (1) WO2008071835A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2462191C1 (en) * 2011-03-31 2012-09-27 Андрей Геннадиевич Надточий Method of examining tongue and oral cavity in patients with cleft lip and palate by data of multispiral computed tomography

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4670892A (en) * 1977-11-15 1987-06-02 Philips Medical Systems, Inc. Method and apparatus for computed tomography of portions of a body plane
DE2834934A1 (en) * 1978-08-09 1980-02-21 Siemens Ag RADIATION DIAGNOSTICS DEVICE FOR THE PRODUCTION OF LAYER IMAGES
US5214686A (en) * 1991-12-13 1993-05-25 Wake Forest University Three-dimensional panoramic dental radiography method and apparatus which avoids the subject's spine
FI97775C (en) * 1992-05-22 1997-02-25 Orion Yhtymae Oy Panoramic radiography device
JP4015366B2 (en) * 1999-03-25 2007-11-28 学校法人日本大学 Local irradiation X-ray CT imaging method and apparatus
JP4149189B2 (en) * 2002-04-04 2008-09-10 株式会社日立メディコ X-ray CT system
US6885724B2 (en) * 2003-08-22 2005-04-26 Ge Medical Systems Global Technology Company, Llc Radiographic tomosynthesis image acquisition utilizing asymmetric geometry
WO2006003235A1 (en) * 2004-07-01 2006-01-12 Instrumentarium Corporation Method for producing a three-dimensional digital x-ray image
US7336763B2 (en) * 2005-05-02 2008-02-26 Oy Ajat Ltd Dental extra-oral x-ray imaging system and method

Also Published As

Publication number Publication date
WO2008071835A1 (en) 2008-06-19
FI20065793A7 (en) 2008-06-13
FI20065793A0 (en) 2006-12-12

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