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1. (WO2019027947) SYSTEM AND METHOD FOR RESPIRATORY GATED RADIOTHERAPY
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Pub. No.: WO/2019/027947 International Application No.: PCT/US2018/044475
Publication Date: 07.02.2019 International Filing Date: 31.07.2018
IPC:
A61B 6/12 (2006.01) ,A61B 6/02 (2006.01) ,A61B 6/08 (2006.01) ,A61B 34/10 (2016.01) ,A61N 5/01 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
6
Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
12
Devices for detecting or locating foreign bodies
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
6
Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
02
Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
6
Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
08
Auxiliary means for directing the radiation beam to a particular spot, e.g. using light beams
[IPC code unknown for A61B 34/10]
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
N
ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
5
Radiation therapy
01
Devices for producing movement of radiation source during therapy
Applicants:
THE REGENTS OF THE UNIVESITY OF CALIFORNIA [US/US]; 1111 Franklin Street Floor 12 Oakland, CA 94607, US
Inventors:
LAMB, James, M.; US
GINN, John, S.; US
LOW, Daniel, A.; US
Agent:
LARSON, Michael, B.; US
Priority Data:
62/538,85431.07.2017US
Title (EN) SYSTEM AND METHOD FOR RESPIRATORY GATED RADIOTHERAPY
(FR) SYSTÈME ET PROCÉDÉ DE RADIOTHÉRAPIE À SYNCHRONISATION RESPIRATOIRE
Abstract:
(EN) A system and method is provided for magnetic resonance imaging (MRI) guided respiratory gated radiotherapy using a respiratory motion model. MRI-guided respiratory gating is performed with a continuously updated model that represents a patient's internal anatomy as a mathematical function of an external respiratory surrogate. The motion model may be built and updated by acquiring images of a tissue in a subject and measuring, using the images, a position of the tissue in the images to determine motion of the tissue. The surrogate respiratory signal is acquired contemporaneously with acquiring the images. Motion of the tissue and the surrogate respiratory signal are correlated to create the motion model for the subject and gating a radiotherapy system may then be based upon the motion model. A multi-planar model- based respiratory gating may also be performed by sequentially imaging a stack of adjacent slice positions.
(FR) L'invention concerne un système et un procédé de radiothérapie à synchronisation respiratoire guidée par imagerie par résonance magnétique (IRM) à l'aide d'un modèle de mouvement respiratoire. La synchronisation respiratoire guidée par IRM est réalisé avec un modèle mis à jour en continu qui représente l'anatomie interne d'un patient en tant que fonction mathématique d'un substitut respiratoire externe. Le modèle de mouvement peut être construit et mis à jour par acquisition d'images d'un tissu chez un sujet et mesure, à l'aide des images, d'une position du tissu sur les images pour déterminer un mouvement du tissu. Le signal respiratoire de substitution est acquis simultanément à l'acquisition des images. Le mouvement du tissu et le signal de substitution sont corrélés pour créer le modèle de mouvement pour le sujet et la synchronisation d'un système de radiothérapie peut ensuite être basée sur le modèle de mouvement. Une synchronisation respiratoire basée sur un modèle multi-plan peut également être réalisée par imagerie séquentielle d'un empilement de positions de tranches adjacentes.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)