Composite field sequencing (CFS) for proton beam therapy
Inventors
Dalfsen, Raymond Philip • Genet, Louis Arunus
Assignees
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Publication Number
US-12673222-B2
Publication Date
2026-07-07
Expiration Date
Abstract
System and techniques may be adapted for use in composite field sequencing for proton therapy. A technique may include generating a proton therapy plan in a treatment planning system, the proton therapy plan including a plurality of static fields. The technique may include creating a single data file of a single dynamic field representing the plurality of static fields. The single data file may be sent to a proton therapy system for delivery of the single dynamic field. The technique may include receiving a response information related to a dose delivered to a patient by the single dynamic field.
Core Innovation
Composite field sequencing converts multiple planned static proton therapy fields into a single dynamic field represented by one data file. The dynamic field contains static steps, each corresponding to a respective static field based on planned dosage. Processing combines source beams into a single beam that automatically moves between delivery angles, and the file is sent to a proton therapy system for delivery.
The described workflow reduces file-transfer and treatment-session delays by consolidating the planned fields into one file and a single delivery sequence. Creating and sending one data file takes less time than processing and sending a respective data file for each static field. For the planned dosage, linear energy transfer to a target is greater with the single dynamic field than with static fields delivering the same planned dosage.
Claims Coverage
The two independent claims are claim 1, a method claim, and claim 11, a non-transitory machine-readable medium claim. They cover two inventive features: composite field sequencing and instructions for performing that sequencing.
Composite field sequencing method
The method generates a proton therapy plan with multiple static fields, processes them into a single data file for a dynamic field containing corresponding static steps, and combines source beams into a single beam that automatically moves between delivery angles. It sends the file to the proton therapy system and receives information related to the dose delivered.
Machine-readable medium for composite field sequencing
The non-transitory machine-readable medium includes instructions that cause processing circuitry to generate the proton therapy plan, create the single data file for a dynamic field with corresponding static steps, combine source beams into a single beam that automatically moves between delivery angles, send the file to the proton therapy system, and receive information related to the dose delivered.
Both independent claims cover converting multiple planned static proton therapy fields into a single dynamic field for delivery and receiving dose-related information. The second independent claim covers instructions for carrying out the same operations.
Stated Advantages
The single-file workflow reduces file-transfer and treatment-session delays.
Creating and sending one data file takes less time than processing and sending a respective data file for each static field.
For the planned dosage, linear energy transfer to a target is greater with the single dynamic field than with static fields delivering the same planned dosage.
Documented Applications
Composite field sequencing for proton therapy: multiple static fields in a proton therapy plan are combined into a single dynamic field for delivery by a proton therapy system.
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