WO1991009495A3 - A system for quantitative radiographic imaging - Google Patents

A system for quantitative radiographic imaging 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
French (fr)
Other versions
WO1991009495A2 (en
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/en
Publication of WO1991009495A3 publication Critical patent/WO1991009495A3/en
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 for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/50—Clinical applications
    • A61B6/505—Clinical applications involving diagnosis of bone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/42—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4241—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with 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 for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/42—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4258—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with 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 for radiation diagnosis, e.g. 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 for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/50—Clinical applications
    • A61B6/508—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
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/32—Transforming X-rays
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4035—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with 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 for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4488—Means for cooling

Abstract

A system for spectroscopic imaging of bodily tissue in which a scintillation screen and a charged coupled device (CCD) are used to accurately image selected tissue. Applications include the imaging of radionuclide distributions within the human body or the use of a dual energy source to provide a dual photon bone densitometry apparatus that uses stationary or scanning acquisition techniques. X-rays are generated by an X-ray source which pass through a region of a subject's body, forming an X-ray image which reaches the scintillation screen. The scintillation screen reradiates a spatial intensity pattern corresponding to the image, the pattern being detected by a CCD sensor. The image is digitized by the sensor and processed by a controller before being stored as an electronic image. A dual energy X-ray source that delivers two different energy levels provides quantitative information regarding the object being imaged using dual photon absorptiometry techniques.
PCT/US1990/007178 1989-12-05 1990-12-05 A system for quantitative radiographic imaging WO1991009495A2 (en)

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
US07853775 A-371-Of-International 1990-12-05
US07/853,775 A-371-Of-International US5465284A (en) 1989-12-05 1990-12-05 System for quantitative radiographic imaging
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 (en) 1991-06-27
WO1991009495A3 true WO1991009495A3 (en) 1991-08-22

Family

ID=23772713

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/007178 WO1991009495A2 (en) 1989-12-05 1990-12-05 A system for quantitative radiographic imaging

Country Status (2)

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

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