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US 12,553,972 B2Granted
Relative electron density mapping from magnetic resonance imaging
AssigneeViewRay Systems, Inc.
InventorsJames F. Dempsey, Iwan Kawrykow
Life of this patent
Estimating the term…
Abstract
Disclosed are systems, computer software, and methods for generating a relative electron density map (RED) from a magnetic resonance imaging (MRI) scan. This can include obtaining an MRI scan of a portion of a patient and segmenting a first region and a second region in the MRI scan. A RED map can then be generated from the MRI scan by assigning a first RED to the first region, assigning a second RED to the second region, and assigning REDs to unsegmented regions in the MRI scan based on intensities in the MRI scan.
Claims20
A system comprising:
- at least one programmable processor;
- and
- a non-transitory machine-readable medium storing instructions which, when executed by the at least one programmable processor, cause the at least one programmable processor to perform operations comprising:
- obtaining a magnetic resonance imaging (MRI) scan of a portion of a patient, wherein the MRI scan is obtained from a patient within an MRI-guided radiotherapy system;
- segmenting a first region in the MRI scan;
- segmenting a second region in the MRI scan;
- generating a relative electron density (RED) map from the MRI scan, the generating comprising:
- assigning a first RED to the first region;
- assigning a second RED to the second region;
- and
- assigning REDs to unsegmented regions in the MRI scan based on intensities in the MRI scan;
- determining a radiation therapy treatment plan utilizing the relative electron density map while the patient remains within the MRI-guided radiotherapy system;
- and
- controlling the MRI-guided radiotherapy system to deliver therapy to the patient while the patient remains within the MRI-guided radiotherapy system.
11 more elements
Dependencies are inferred from the claim text.