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1. WO2011011684 - SELECTION OF OPTIMAL VIEWS FOR COMPUTED TOMOGRAPHY RECONSTRUCTION

Publication Number WO/2011/011684
Publication Date 27.01.2011
International Application No. PCT/US2010/043050
International Filing Date 23.07.2010
IPC
A61B 6/03 2006.01
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 6/08 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
08Auxiliary means for directing the radiation beam to a particular spot, e.g. using light beams
CPC
A61B 6/583
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
58Testing, adjusting or calibrating devices for radiation diagnosis
582Calibration
583using calibration phantoms
G01N 2223/419
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2223Investigating materials by wave or particle radiation
40Imaging
419computed tomograph
G01N 2223/612
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2223Investigating materials by wave or particle radiation
60Specific applications or type of materials
612biological material
G01N 23/046
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
23Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00G01N17/00, G01N21/00 or G01N22/00
02by transmitting the radiation through the material
04and forming images of the material
046using tomography, e.g. computed tomography [CT]
Applicants
  • THE RESEARCH FOUNDATION OF STATE UNIVERSITY OF NEW YORK [US]/[US] (AllExceptUS)
  • MUELLER, Klaus [US]/[US] (UsOnly)
Inventors
  • MUELLER, Klaus
Agents
  • GROLZ, Edward, W.
Priority Data
61/228,24624.07.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SELECTION OF OPTIMAL VIEWS FOR COMPUTED TOMOGRAPHY RECONSTRUCTION
(FR) SÉLECTION DE VUES OPTIMALES POUR RECONSTRUCTION PAR TOMODENSITOMÉTRIE
Abstract
(EN)
Methods of making iterative low-dose computed tomography (CT) efficient and applicable to clinical practice employ selection of optimal views for CT reconstruction. By optimizing the views for CT reconstruction, the method of the present invention can generate reconstructions at a pre-specified low radiation dose and/or in near real-time. A feature-oriented framework for a task-driven, object-driven, and dose-minimizing selection of X-ray views is provided, which can utilize models of features to be mapped. The models can be derived from a patient population to minimize the dose per exam and/or from a specific patient to minimize the dose per procedure. The method of the present disclosure can be incorporated into a CT system, or can be embodied in a data storage medium as a program.
(FR)
L'invention concerne des procédés destinés à rendre une tomodensitométrie (TDM) itérative à faible dose efficace et applicable à la pratique clinique, par sélection de vues optimales pour la reconstruction par TDM. L'optimisation des vues pour la reconstruction par TDM permet au procédé de la présente invention de générer des reconstructions à une faible dose de rayonnement pré-définie et/ou en temps presque réel. On utilise un cadre orienté sur les caractéristiques en vue d'une sélection de vues radiologiques gouvernée par tâches et objets et permettant une réduction de dose, ce cadre pouvant faire intervenir des modèles de caractéristiques à mettre en correspondance. Les modèles peuvent être dérivés d'une population de patients en vue d'une réduction de la dose par examen, et/ou d'un patient spécifique en vue d'une réduction de la dose par opération. Le procédé de la présente invention peut être intégré dans un système de TDM ou matérialisé sur un support de stockage de données sous forme de programme.
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