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WO1991009495A3 - Systeme de prise d'images radiographique quantitative - Google Patents

Systeme de prise d'images radiographique quantitative Download PDF

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Publication number
WO1991009495A3
WO1991009495A3 PCT/US1990/007178 US9007178W WO9109495A3 WO 1991009495 A3 WO1991009495 A3 WO 1991009495A3 US 9007178 W US9007178 W US 9007178W WO 9109495 A3 WO9109495 A3 WO 9109495A3
Authority
WO
WIPO (PCT)
Prior art keywords
image
dual
scintillation screen
imaging
ccd
Prior art date
Application number
PCT/US1990/007178
Other languages
English (en)
Other versions
WO1991009495A2 (fr
Inventor
Andrew Karellas
Original Assignee
Univ Massachusetts Medical
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 Univ Massachusetts Medical filed Critical Univ Massachusetts Medical
Priority to US07/853,775 priority Critical patent/US5465284A/en
Publication of WO1991009495A2 publication Critical patent/WO1991009495A2/fr
Publication of WO1991009495A3 publication Critical patent/WO1991009495A3/fr
Priority to US08/438,800 priority patent/US7330531B1/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
    • A61B6/505—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 bone
    • 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
    • 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
    • A61B6/4258—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector for detecting non x-ray radiation, e.g. gamma radiation
    • 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
    • A61B6/48—Diagnostic techniques
    • A61B6/482—Diagnostic techniques involving multiple energy imaging
    • 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
    • A61B6/508—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 non-human patients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/30—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from X-rays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • 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
    • A61B6/4035—Arrangements for generating radiation specially adapted for radiation diagnosis the source being combined with a filter or grating
    • A61B6/4042—K-edge filters
    • 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
    • A61B6/4488—Means for cooling

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)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Measurement Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

L'invention se rapporte à un système de prise d'images spectroscopiques de tissus corporels, dans lequel un écran à scintillation et un dispositif à couplage de charge (CCD) sont utilisés pour permettre une prise d'images précise des tissus sélectionnés. Ce système trouve des applications dans la représentation en images des répartitions des radionuclides dans le corps humain ou dans l'emploi d'une source d'énergie double pour un appareil de densitométrie osseuse à photons qui utilise des techniques d'acquisition à images stationnaires ou exploration. Les rayons X sont produits par une source de rayons X qui traverse une région du corps du sujet, en formant une image radiographique qui atteint l'écran à scintillation. L'écran à scintillation irradie en retour une figure d'intensité spatiale qui correspond à l'image et qui est détectée par un capteur à CCD. L'image est numérisée par le capteur et traitée par une unité de commande avant d'être stockée sous la forme d'une image électronique. Une source de rayons X à énergie doubles, qui fournit deux niveaux d'énergie différents, produit des informations quantitatives sur l'objet représenté en images, en utilisant des techniques d'absorptiométrie photonique double.
PCT/US1990/007178 1989-12-05 1990-12-05 Systeme de prise d'images radiographique quantitative WO1991009495A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US07/853,775 US5465284A (en) 1989-12-05 1990-12-05 System for quantitative radiographic imaging
US08/438,800 US7330531B1 (en) 1989-12-05 1995-05-11 System for quantitative radiographic imaging

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US446,472 1989-12-05
US07/446,472 US5150394A (en) 1989-12-05 1989-12-05 Dual-energy system for quantitative radiographic imaging

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US07/446,472 Continuation-In-Part US5150394A (en) 1989-12-05 1989-12-05 Dual-energy system for quantitative radiographic imaging

Related Child Applications (3)

Application Number Title Priority Date Filing Date
US07/853,775 A-371-Of-International US5465284A (en) 1989-12-05 1990-12-05 System for quantitative radiographic imaging
US07853775 A-371-Of-International 1990-12-05
US08/438,800 Continuation-In-Part US7330531B1 (en) 1989-12-05 1995-05-11 System for quantitative radiographic imaging

Publications (2)

Publication Number Publication Date
WO1991009495A2 WO1991009495A2 (fr) 1991-06-27
WO1991009495A3 true WO1991009495A3 (fr) 1991-08-22

Family

ID=23772713

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/007178 WO1991009495A2 (fr) 1989-12-05 1990-12-05 Systeme de prise d'images radiographique quantitative

Country Status (2)

Country Link
US (3) US5150394A (fr)
WO (1) WO1991009495A2 (fr)

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US5150394A (en) 1992-09-22
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US5465284A (en) 1995-11-07

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