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1. WO2020112684 - MULTI-PASS COMPUTED TOMOGRAPHY SCANS FOR IMPROVED WORKFLOW AND PERFORMANCE

Publication Number WO/2020/112684
Publication Date 04.06.2020
International Application No. PCT/US2019/063086
International Filing Date 25.11.2019
IPC
A61B 6/02 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
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
CPC
A61B 5/055
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
05Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; ; Measuring using microwaves or radiowaves
055involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
A61B 6/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
A61B 6/02
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
A61B 6/025
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
025Tomosynthesis
A61B 6/027
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
027characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
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
Applicants
  • ACCURAY INC. [US]/[US]
Inventors
  • GAGNON, Daniel
  • BAI, Chuanyong
  • YU, Zhicong
Agents
  • WATSON, Mark A.
Priority Data
62/773,70030.11.2018US
62/773,71230.11.2018US
62/796,83125.01.2019US
62/800,28701.02.2019US
62/801,26005.02.2019US
62/813,33504.03.2019US
62/821,11620.03.2019US
62/836,35219.04.2019US
62/836,35719.04.2019US
62/843,79606.05.2019US
62/878,36425.07.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MULTI-PASS COMPUTED TOMOGRAPHY SCANS FOR IMPROVED WORKFLOW AND PERFORMANCE
(FR) BALAYAGES DE TOMOGRAPHIE PAR ORDINATEUR À PASSAGES MULTIPLES À DES FINS DE FLUX DE TRAVAIL ET DE PERFORMANCE AMÉLIORÉS
Abstract
(EN)
An x-ray imaging apparatus and associated methods are provided to execute multi-pass imaging scans for improved quality and workflow. An imaging scan can be segmented into multiple passes that are faster than the full imaging scan. Data received by an initial scan pass can be utilized early in the workflow and of sufficient quality for treatment setup, including while the another scan pass is executed to generate data needed for higher quality images, which may be needed for treatment planning. In one embodiment, a data acquisition and reconstruction technique is used when the detector is offset in the channel and/or axial direction for a large FOV during multiple passes.
(FR)
L'invention concerne un appareil d'imagerie par rayons x et des méthodes associées pour exécuter des balayages d'imagerie à passages multiples à des fins de qualité et de flux de travail améliorés. Un balayage d'imagerie peut être segmenté en de multiples passages qui sont plus rapides que le balayage d'imagerie complet. Les données reçues par un passage de balayage initial peuvent être utilisées de manière précoce dans le flux de travail et être de qualité suffisante pour un établissement de traitement, y compris pendant que l'autre passage de balayage est exécuté pour générer des données nécessaires à des images de qualité supérieure, qui peuvent être nécessaires à une planification de traitement. Un mode de réalisation fait appel à une technique d'acquisition et de reconstruction de données lorsque le détecteur est décalé dans le canal et/ou dans la direction axiale d'un grand FOV pendant de multiples passages.
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