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Non-circular-orbit detection method and apparatus

  • US 7,470,896 B2
  • Filed: 06/27/2003
  • Issued: 12/30/2008
  • Est. Priority Date: 06/27/2003
  • Status: Active Grant
First Claim
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1. A non-circular-orbit detection method, comprising:

  • locating first and second detectors, displaced with respect to one another, a distance from a patient;

    moving the first and second detectors in a direction towards said patient until a first sensor senses a first point of said patient at a first sensing position;

    storing said first sensing position;

    moving the first and second detectors in a second direction from said first sensing position until a second sensor senses a second point of said patient at a second sensing position;

    storing said second sensing position;

    calculating a non-circular orbit about said patient using said stored first and second sensing positions; and

    moving the first and second detectors in a non-circular-orbit about said patient.

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