Prospective adaptive radiation therapy planning

Prospective adaptive radiation therapy planning

  • CN 102,132,279 B
  • Filed: 07/22/2009
  • Issued: 03/03/2020
  • Est. Priority Date: 08/14/2008
  • Status: Active Grant
First Claim
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1. A system comprising one or more digital processors (P), comprising:

  • a treatment planner (16) for constructing a treatment plan based on a planning image segmented into segments depicting features of the object;

    a predictive plan adaptation module (20) for adjusting the segments to represent foreseeable changes of the subject and invoking the treatment planner (16) to construct a treatment plan corresponding to the foreseeable changes, wherein the predictive plan adaptation module is configured to repeat the constructing for a plurality of foreseeable changes having monotonically increasing or monotonically decreasing magnitudes, to construct a treatment plan corresponding to the foreseeable changes for each of the plurality of foreseeable changes, and to perform the repeating of further constructing with monotonically increasing or monotonically decreasing magnitudes by using radiation plan parameters of previously constructed treatment plans corresponding to the foreseeable changes as initial parameter values for subsequent further constructing operations;

    a data store (18) for storing a plurality of treatment plans generated for a subject by the treatment planner (16) and the predictive plan adaptation module (20) based on at least one planning image of the subject, wherein the plurality of treatment plans are generated during a planning process prior to a start of a treatment session; and

    a treatment plan selector (30) for selecting one of the plurality of treatment plans for use in a treatment session during a treatment session subsequent to the planning session based on a preparation image segmented into a most recent segment depicting a most recent feature of the subject, wherein the preparation image is acquired after the treatment session is initiated and prior to application of the treatment session.

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