US 12,728,288 B2Granted

System and method for pretreatment imaging in adaptive radiation therapy

AssigneeShanghai United Imaging Healthcare Co., Ltd.

InventorsBinghuan Li, Jingjie Zhou, Jonathan Maltz

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Abstract

A system and method for adapting treatment plan are provided. The method may include: obtaining a planning image of a region of interest relating to a first treatment fraction of a first treatment plan; obtaining a first image of the region of interest relating to a first scan of the region of interest with a first dose level; comparing the planning image with the first image to generate a first comparison result; determining whether the first comparison result satisfies a first replanning condition; causing, in response to a determination that the first comparison result satisfies the first replanning condition, one or more scanners to perform a second scan with a second dose level to provide a second image; and generating a second treatment plan according to the second image, wherein the second dose level is higher than the first dose level.

Claims20

Dependent claims

A system for radiation therapy, comprising:

at least one storage device including a set of instructions for adaptive treatment planning;
and
at least one processor configured to communicate with the at least one storage device, wherein when executing the set of instructions, the system is directed to perform operations including:
obtaining one or more historical images of a region of interest (ROI) relating to one or more historical treatment plans of the ROI;
obtaining a first guiding image of the ROI, the first guiding image being collected by a first scan of the ROI performed before a first treatment fraction;
determining whether replanning is needed for the first treatment fraction based on the one or more historical images and the first guiding image;
and
in response to determining that replanning is not needed for the first treatment fraction, determining a target treatment plan with respect to the first treatment fraction based on the one or more historical treatment plans, or
in response to determining that replanning is needed for the first treatment fraction, generating a notification for reminding a user to reconfirm whether replanning is needed for the first treatment fraction.

6 more elements

A system for radiation therapy, comprising:

at least one storage device including a set of instructions for adaptive treatment planning;
and
at least one processor configured to communicate with the at least one storage device, wherein when executing the set of instructions, the system is directed to perform operations including:
detecting that an updated image is obtained, the updated image relating to a region of interest (ROI) that needs to receive a first treatment fraction;
in response to the detection of the updated image,
obtaining one or more historical images of the ROI relating to one or more historical treatment plans;
and
determining whether replanning is needed for the first treatment fraction based on the one or more historical images and the updated image.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/974,757Filed 9 Dec 2024 · continuation in part
Priority: 30 Sep 2017
Published: US 2025/0099785 A127 Mar 2025
Granted: 8 Sep 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

A61N 5/1064
Monitoring, verifying, controlling systems and methods: for adjusting radiation treatment in response to monitoring
A61N 5/103
X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy: treatment planning systems
A61N 5/1031
Treatment planning systems: using a specific method of dose optimization
A61N 5/1038
Treatment planning systems: taking into account previously administered plans applied to the same patient, i.e. adaptive radiotherapy

Family

Application15/721,798Parent of this continuation · filed 30 Sep 2017
Application16/939,180Parent of this continuation · filed 27 Jul 2020
US 10,722,731 B2Parent of this continuation · filed 28 Jul 2020
Application17/659,174Parent of this continuation-in-part · filed 13 Apr 2022
US 11,369,805 B2Parent of this continuation · filed 28 Jun 2022
US 2025/0099785 A1Pre-grant publication · published 27 Mar 2025
US 12,161,886 B2Parent of this continuation-in-part
Application17/659,174Parent of this continuation
US 2019/0099619 A1Published application
US 2020/0353287 A1Published application
US 2022/0233884 A1Published application
US 12,728,288 B2This patent

From the US filing history. Foreign family members aren’t listed.