Methods for tumor tracking
AssigneeRefleXion Medical, Inc.
InventorsRostem Bassalow, George Andrew Zdasiuk
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Abstract
Disclosed herein are methods for determining the location of a moving target region (e.g., a tumor) based on the location of the center of its range of motion and the location of a target region surrogate, during a radiotherapy treatment session or a quality assurance (QA) session. These methods comprise characterizing the motion range of the target region, calculating the location of the center of the motion range, and determining a correlation between the position of the target region surrogate and the displacement of the target region from the center of the motion range as the target region moves.
Claims37
A method for determining a target region location comprising:
- using acquired imaging data to calculate a center of motion location of a target region;
- acquiring position data from a target region surrogate;
- determining a displacement shift vector of the target region from the center of motion location based on the target region surrogate position data;
- and
- calculating a target region location by combining the center of motion location with the displacement shift vector.
A method for determining a target region location comprising:
- defining a range of motion of a target region based on acquired imaging data, wherein the range of motion comprises a plurality of phases corresponding to locations of the target region relative to a center of motion of the target region;
- acquiring position data from a target region surrogate;
- and
- determining a target region location by mapping the surrogate position data to one of the plurality of motion range phases to identify the corresponding target region location.
Dependencies are inferred from the claim text.