FR3084933B1 - Systèmes et procédés de détermination de profondeur d'interaction - Google Patents

Systèmes et procédés de détermination de profondeur d'interaction Download PDF

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Publication number
FR3084933B1
FR3084933B1 FR1909135A FR1909135A FR3084933B1 FR 3084933 B1 FR3084933 B1 FR 3084933B1 FR 1909135 A FR1909135 A FR 1909135A FR 1909135 A FR1909135 A FR 1909135A FR 3084933 B1 FR3084933 B1 FR 3084933B1
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Prior art keywords
anodes
photon
pixelized
response
anode
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FR1909135A
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English (en)
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FR3084933A1 (fr
Inventor
Arie Shahar
Yaron Glazer
Moshe Cohen-Erner
Avishai Ofan
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General Electric Co
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General Electric Co
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/24—Measuring radiation intensity with semiconductor detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
    • 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
    • A61B6/4241—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using energy resolving detectors, e.g. photon counting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
    • G01T1/164—Scintigraphy
    • G01T1/1641—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras
    • G01T1/1642—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras using a scintillation crystal and position sensing photodetector arrays, e.g. ANGER cameras
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/24—Measuring radiation intensity with semiconductor detectors
    • G01T1/241—Electrode arrangements, e.g. continuous or parallel strips or the like
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/24—Measuring radiation intensity with semiconductor detectors
    • G01T1/244—Auxiliary details, e.g. casings, cooling, damping or insulation against damage by, e.g. heat, pressure or the like
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/24—Measuring radiation intensity with semiconductor detectors
    • G01T1/249—Measuring radiation intensity with semiconductor detectors specially adapted for use in SPECT or PET
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
    • G01T1/2914—Measurement of spatial distribution of radiation
    • G01T1/2985—In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis)
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T7/00—Details of radiation-measuring instruments
    • G01T7/005—Details of radiation-measuring instruments calibration techniques

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine (AREA)
  • Measurement Of Radiation (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

Un ensemble détecteur (100) est proposé, lequel inclut un détecteur à semi-conducteur (110), plusieurs anodes pixelisées (114), et au moins une unité de traitement (120). Les différentes anodes pixelisées (114) sont disposées sur une surface (112) du détecteur à semi-conducteur (110). Chaque anode pixelisée est configurée pour générer un signal primaire (32) en réponse à la réception d'un photon (116) et pour générer au moins un signal secondaire (34 ; 35 ; 36 ; 37) en réponse à une charge induite provoquée par la réception d'un photon (116) par au moins une anode (14) environnante. L'au moins une unité de traitement est couplée fonctionnellement aux anodes pixelisées (114) et est configurée pour acquérir un signal primaire (32) à partir de l'une (114a) des anodes (114) en réponse à la réception d'un photon (116) ; acquérir au moins un signal secondaire (34 ; 35 ; 36 ; 37) à partir d'au moins un pixel voisin ; et déterminer une profondeur d'interaction (Z0 ; Z1 ; Z2 ; Z3 ; Z4) dans le détecteur à semi-conducteur (110) pour la réception du photon (116) par cette anode (114a) des anodes (114) en utilisant l'au moins un signal secondaire (34 ; 35 ; 36 ; 37). Figure pour l’abrégé : Fig 10
FR1909135A 2018-08-13 2019-08-12 Systèmes et procédés de détermination de profondeur d'interaction Active FR3084933B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16/102,228 US10481285B1 (en) 2018-08-13 2018-08-13 Systems and methods for determination of depth of interaction
US16/102228 2018-08-13

Publications (2)

Publication Number Publication Date
FR3084933A1 FR3084933A1 (fr) 2020-02-14
FR3084933B1 true FR3084933B1 (fr) 2021-12-10

Family

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Family Applications (1)

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FR1909135A Active FR3084933B1 (fr) 2018-08-13 2019-08-12 Systèmes et procédés de détermination de profondeur d'interaction

Country Status (4)

Country Link
US (1) US10481285B1 (fr)
CN (1) CN110824530B (fr)
DE (1) DE102019121702A1 (fr)
FR (1) FR3084933B1 (fr)

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US11320545B2 (en) 2020-07-07 2022-05-03 GE Precision Healthcare LLC Systems and methods for improved medical imaging

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Also Published As

Publication number Publication date
CN110824530A (zh) 2020-02-21
FR3084933A1 (fr) 2020-02-14
DE102019121702A1 (de) 2020-02-13
CN110824530B (zh) 2024-02-02
US10481285B1 (en) 2019-11-19

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