WO2004072679A3 - Single photon emission computed tomography system - Google Patents

Single photon emission computed tomography system Download PDF

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Publication number
WO2004072679A3
WO2004072679A3 PCT/US2004/003263 US2004003263W WO2004072679A3 WO 2004072679 A3 WO2004072679 A3 WO 2004072679A3 US 2004003263 W US2004003263 W US 2004003263W WO 2004072679 A3 WO2004072679 A3 WO 2004072679A3
Authority
WO
WIPO (PCT)
Prior art keywords
detector
view
field
photon
vanes
Prior art date
Application number
PCT/US2004/003263
Other languages
French (fr)
Other versions
WO2004072679B1 (en
WO2004072679A2 (en
Inventor
Jack E Juni
Original Assignee
Jack E Juni
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 Jack E Juni filed Critical Jack E Juni
Priority to JP2006503335A priority Critical patent/JP2006516742A/en
Priority to CA2515198A priority patent/CA2515198C/en
Priority to EP04708595A priority patent/EP1592986A2/en
Publication of WO2004072679A2 publication Critical patent/WO2004072679A2/en
Publication of WO2004072679A3 publication Critical patent/WO2004072679A3/en
Publication of WO2004072679B1 publication Critical patent/WO2004072679B1/en

Links

Classifications

    • 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
    • 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
    • A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computerised tomographs
    • A61B6/037—Emission tomography

Abstract

A single photon emission computed tomography system produces multiple tomographic images of the type representing a three-dimensional distribution of a photon-emitting radioisotope. The system has a base including a patient support for supporting a patient such that a portion of the patient is located in a field of view. A longitudinal axis is defined through the field of view. A detector module is adjacent the field of view and includes a photon-responsive detector. The detector is operable to detect if a photon strikes the detector. A photon-blocking member is positioned between the field of view and the detector. The blocking member has an aperture slot for passage of photons aligned with the aperture slot. A line of response is defined from the detector through the aperture. A collimating assembly includes a plurality of generally parallel collimating vanes formed of a photon attenuating material. The vanes are spaced apart so as to find a plurality of gaps, with the gaps each having a height. Each of the vanes has a front edge directed toward the field of view and a back edge directed towards the detector. The front-to-back depth of each of the vanes is greater than 10 times the height of the gaps. The plurality of vanes is disposed between the detector and the field of view such that only photons passing through one of the gaps can travel from the field of view to the detector. A displacement device moves either the detector module or the photon-blocking member relative to the other so that the aperture is displaced relative to the detector and the line of response is swept across at least a portion of the field of view.
PCT/US2004/003263 2003-02-05 2004-02-05 Single photon emission computed tomography system WO2004072679A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2006503335A JP2006516742A (en) 2003-02-05 2004-02-05 Single photon emission computed tomography system
CA2515198A CA2515198C (en) 2003-02-05 2004-02-05 Single photon emission computed tomography system
EP04708595A EP1592986A2 (en) 2003-02-05 2004-02-05 Single photon emission computed tomography system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/358,961 US7015476B2 (en) 1999-04-14 2003-02-05 Single photon emission computed tomography system
US10/358,961 2003-02-05

Publications (3)

Publication Number Publication Date
WO2004072679A2 WO2004072679A2 (en) 2004-08-26
WO2004072679A3 true WO2004072679A3 (en) 2005-03-24
WO2004072679B1 WO2004072679B1 (en) 2005-05-26

Family

ID=32867917

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/003263 WO2004072679A2 (en) 2003-02-05 2004-02-05 Single photon emission computed tomography system

Country Status (6)

Country Link
US (1) US7015476B2 (en)
EP (1) EP1592986A2 (en)
JP (1) JP2006516742A (en)
CN (1) CN100374877C (en)
CA (1) CA2515198C (en)
WO (1) WO2004072679A2 (en)

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Also Published As

Publication number Publication date
CA2515198A1 (en) 2004-08-26
CN100374877C (en) 2008-03-12
CN1759328A (en) 2006-04-12
WO2004072679B1 (en) 2005-05-26
US20030136912A1 (en) 2003-07-24
US7015476B2 (en) 2006-03-21
WO2004072679A2 (en) 2004-08-26
EP1592986A2 (en) 2005-11-09
CA2515198C (en) 2014-09-30
JP2006516742A (en) 2006-07-06

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