DE2842518A1 - Tomografische vorrichtung und verwendung dieser vorrichtung - Google Patents

Tomografische vorrichtung und verwendung dieser vorrichtung

Info

Publication number
DE2842518A1
DE2842518A1 DE19782842518 DE2842518A DE2842518A1 DE 2842518 A1 DE2842518 A1 DE 2842518A1 DE 19782842518 DE19782842518 DE 19782842518 DE 2842518 A DE2842518 A DE 2842518A DE 2842518 A1 DE2842518 A1 DE 2842518A1
Authority
DE
Germany
Prior art keywords
point
data
detector
angle
radiation
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.)
Withdrawn
Application number
DE19782842518
Other languages
German (de)
English (en)
Inventor
Ronald Gene Walters
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.)
Ohio Nuclear Inc
Original Assignee
Ohio Nuclear Inc
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 Ohio Nuclear Inc filed Critical Ohio Nuclear Inc
Publication of DE2842518A1 publication Critical patent/DE2842518A1/de
Withdrawn legal-status Critical Current

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
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4275—Arrangements for detecting radiation specially adapted for radiation diagnosis using a detector unit almost surrounding the patient, e.g. more than 180°
    • 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]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/421—Filtered back projection [FBP]

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
  • Measurement Of Radiation (AREA)
  • Image Analysis (AREA)
DE19782842518 1977-09-30 1978-09-29 Tomografische vorrichtung und verwendung dieser vorrichtung Withdrawn DE2842518A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83808477A 1977-09-30 1977-09-30

Publications (1)

Publication Number Publication Date
DE2842518A1 true DE2842518A1 (de) 1979-04-05

Family

ID=25276216

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782842518 Withdrawn DE2842518A1 (de) 1977-09-30 1978-09-29 Tomografische vorrichtung und verwendung dieser vorrichtung

Country Status (5)

Country Link
JP (1) JPS5466791A (enrdf_load_stackoverflow)
AU (1) AU522916B2 (enrdf_load_stackoverflow)
DE (1) DE2842518A1 (enrdf_load_stackoverflow)
FR (1) FR2433927A1 (enrdf_load_stackoverflow)
GB (1) GB2005514B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000880A1 (en) * 1982-09-03 1984-03-15 Medicor Muevek Convolver equipment
DE3342075A1 (de) * 1982-11-29 1984-06-20 Elscint Ltd., Haifa Verfahren und einrichtung zum umordnen von divergierenden strahlen

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4288695A (en) * 1979-04-13 1981-09-08 Technicare Corporation Computerized tomographic scanner with shaped radiation filter
NL8204086A (nl) * 1982-10-22 1984-05-16 Philips Nv Werkwijze en inrichting voor het bepalen van een stralingsverzwakkingsverdeling in een vlak van een lichaam.
EP0109205A3 (en) * 1982-11-15 1985-07-31 Picker International, Inc. Method and apparatus for computed tomography imaging
JPS6089277A (ja) * 1983-10-19 1985-05-20 Yokogawa Hokushin Electric Corp 逆投影装置
US4590559A (en) * 1983-11-23 1986-05-20 Tokyo Shibaura Denki Kabushiki Kaisha Data disc system for a computed tomography X-ray scanner
CN101854863B (zh) 2007-11-15 2013-08-14 皇家飞利浦电子股份有限公司 用于改进3d x射线成像的图像质量的可移动楔
CN114998462B (zh) * 2022-05-20 2024-10-29 成都理工大学工程技术学院 一种层析γ扫描线衰减系数重建方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2611532A1 (de) * 1975-03-18 1976-09-23 Emi Ltd Radiographisches geraet
US3983398A (en) * 1974-11-29 1976-09-28 The Board Of Trustees Of Leland Stanford Junior University Method and apparatus for X-ray or γ-ray 3-D tomography using a fan beam

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1283915A (en) * 1968-08-23 1972-08-02 Emi Ltd A method of and apparatus for examination of a body by radiation such as x or gamma radiation
US3965353A (en) * 1974-12-06 1976-06-22 Albert Macovski Cross-sectional X-ray emission imaging system
GB1571509A (en) * 1976-03-03 1980-07-16 Emi Ltd Radiography
JPS52106698A (en) * 1977-03-03 1977-09-07 Emi Ltd Radiation photograph

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983398A (en) * 1974-11-29 1976-09-28 The Board Of Trustees Of Leland Stanford Junior University Method and apparatus for X-ray or γ-ray 3-D tomography using a fan beam
DE2611532A1 (de) * 1975-03-18 1976-09-23 Emi Ltd Radiographisches geraet

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
G. LINKE: "Technische Grundlagen der Computer- tomographie" in DE-Z.: Röntgenpraxis, Bd. 30, 1977, H.7, S.159-180 *
R.E. STURM, E.L. RITMAN, E.H. WOOD: "Quantita- tive Three-Dimensional Dynamic Imaging of Structure and Function of the Cardiopulmonary and Circulatory Systems in all Regions of the Body" in US-Z.: Reprint from "Vol 72 - Cardio- vascular Imaging and Image Processing, Theory and Practice 1975" by Society of Photo-Optical Instrumentation Engineers, 1976 Palos Verdes Estates, Calif., USA, S.103-121 *
R.E.STURM, E.L.RITMAN, E.H.WOOD: "Quantitative Three- Dimensional Dynamic Imaging of Structure and Function of the Cardiopulmonary and Circulatory Systems in all Regions of the Body" in & US-Z.: Reprint from "Vol 72 - Cardiovascular Imaging and Image Processing,&
Theory and Practice 1975" by Society of Photo-Optical Instrumentation Engineers, 1976 Palos Verdes & Estates, Calif., USA, S.103-121

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000880A1 (en) * 1982-09-03 1984-03-15 Medicor Muevek Convolver equipment
DE3342075A1 (de) * 1982-11-29 1984-06-20 Elscint Ltd., Haifa Verfahren und einrichtung zum umordnen von divergierenden strahlen

Also Published As

Publication number Publication date
JPS5466791A (en) 1979-05-29
FR2433927A1 (fr) 1980-03-21
AU522916B2 (en) 1982-07-01
FR2433927B1 (enrdf_load_stackoverflow) 1984-06-29
GB2005514B (en) 1982-03-17
AU3845378A (en) 1980-01-31
GB2005514A (en) 1979-04-19

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee