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1. WO2011008967 - SYSTEM AND METHOD FOR AUTOMATIC TUBE POTENTIAL SELECTION FOR RADIATION DOSE REDUCTION IN CT

Publication Number WO/2011/008967
Publication Date 20.01.2011
International Application No. PCT/US2010/042152
International Filing Date 15.07.2010
IPC
H05G 1/32 2006.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
GX-RAY TECHNIQUE
1X-ray apparatus involving X-ray tubes; Circuits therefor
08Electrical details
26Measuring, controlling, protecting
30Controlling
32Supply voltage of the X-ray apparatus or tube
CPC
A61B 6/03
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
02Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
03Computerised tomographs
A61B 6/032
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
02Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
03Computerised tomographs
032Transmission computed tomography [CT]
A61B 6/405
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
40with arrangements for generating radiation specially adapted for radiation diagnosis
405Source units specially adapted to modify characteristics of the beam during the data acquisition process
A61B 6/481
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
48Diagnostic techniques
481involving the use of contrast agents
A61B 6/504
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
50Clinical applications
504involving diagnosis of blood vessels, e.g. by angiography
A61B 6/542
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
54Control of apparatus or devices for radiation diagnosis
542involving control of exposure
Applicants
  • MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH [US]/[US] (AllExceptUS)
  • YU, Lifeng [CN]/[US] (UsOnly)
  • MCCOLLOUGH, Cynthia, H. [US]/[US] (UsOnly)
  • FLETCHER, Joel, G. [US]/[US] (UsOnly)
  • LI, Hua [US]/[US] (UsOnly)
Inventors
  • YU, Lifeng
  • MCCOLLOUGH, Cynthia, H.
  • FLETCHER, Joel, G.
  • LI, Hua
Agents
  • COOK, Jack, M.
Priority Data
61/225,81815.07.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR AUTOMATIC TUBE POTENTIAL SELECTION FOR RADIATION DOSE REDUCTION IN CT
(FR) SYSTÈME ET PROCÉDÉ DE SÉLECTION AUTOMATIQUE DE POTENTIEL DE TUBE POUR IMAGERIE MÉDICALE À RÉDUCTION DE DOSE
Abstract
(EN)
A method for CT imaging that utilizes an automatic tube potential selection for individual subjects and diagnostic tasks. The method quantifies the relative radiation dose of different tube potentials for achieving a specific image quality. This allows the selection of a tube potential that provides a reduced radiation dose while still providing CT images of a sufficient quality.
(FR)
L'invention porte sur un procédé d'imagerie tomodensitométrique qui utilise une sélection automatique de potentiel de tube pour des sujets individuels et des tâches de diagnostic. Le procédé quantifie la dose de rayonnement relative de différents potentiels de tube permettant d'atteindre une qualité d'image spécifique. Cela permet de sélectionner un potentiel de tube qui fournit une dose de rayonnement réduite tout en fournissant encore des images tomodensitométriques d'une qualité suffisante.
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