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Leaf sequencing method and system

  • US 20050148841A1
  • Filed: 12/15/2003
  • Published: 07/07/2005
  • Est. Priority Date: 12/15/2003
  • Status: Active Grant
First Claim
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1. A method of delivering radiation treatment using multi-leaf collimation, comprising the steps of:

  • (a) providing a radiation fluence map which supplies a desired intensity profile;

    (b) converting said fluence map into a preliminary leaf sequence, wherein said preliminary leaf sequence minimizes machine on-time and is generated without any leaf movement constraints;

    (c) imposing at least one leaf movement constraint on said preliminary leaf sequence, and (d) applying at least one constraint elimination algorithm, said algorithm adjusting said preliminary leaf sequence to minimize violations of said constraint while providing said fluence map and said minimized on-time.

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