Title:
RADIATION THERAPY SYSTEM, MOTION TRACKING DEVICE AND MOTION TRACKING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/047915
Kind Code:
A1
Abstract:
Provided is a feature for accurately irradiating a tumor with radiation. This motion tracking device has: a medical image extraction device for extracting, from a medical image of a patient, motion information which is information pertaining to the motion in a specific region of a target, tissue around the target, and a surrogate which is a pathognomic site; a motion model generator which constructs a motion model expressing the correlation between the motion of the target, the tissue and the surrogate on the basis of the motion information; a motion detector for measuring the motion of the surrogate during a treatment for irradiating the patient with therapeutic radiation; a motion estimator for estimating the current or future location of the target and tissue on the basis of the motion model and the motion of the surrogate; and a motion model corrector for correcting the estimated target and tissue location during treatment according to a pre-set correction protocol. The treatment control device subjects the patient to targeted therapeutic radiation on the basis of the estimated current or future location of the target and tissue.
Inventors:
CHEUNG LING FUNG (JP)
FUJII TAKAAKI (JP)
FUJITAKA SHINICHIRO (JP)
MIYAMOTO NAOKI (JP)
UMEGAKI KIKUO (JP)
MIYAZAKI KOICHI (JP)
FUJII TAKAAKI (JP)
FUJITAKA SHINICHIRO (JP)
MIYAMOTO NAOKI (JP)
UMEGAKI KIKUO (JP)
MIYAZAKI KOICHI (JP)
Application Number:
PCT/JP2023/009252
Publication Date:
March 07, 2024
Filing Date:
March 10, 2023
Export Citation:
Assignee:
HITACHI LTD (JP)
UNIV HOKKAIDO NAT UNIV CORP (JP)
UNIV HOKKAIDO NAT UNIV CORP (JP)
International Classes:
A61N5/10
Foreign References:
| US20090180589A1 | 2009-07-16 | |||
| JP2017144000A | 2017-08-24 |
Attorney, Agent or Firm:
WILLFORT INTERNATIONAL PATENT FIRM (JP)
Download PDF: