Computer tomography sorting based on internal anatomy of patients
AssigneeThe Regents of the University of California
InventorsRuijiang Li, Steve B. Jiang, John Lewis, Laura Cervino
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Abstract
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for computer tomography (CT) sorting based on internal anatomy of patients. CT scans of anatomical features of a human are obtained as pixels. From the scans, multiple respiratory features are determined. An optimal respiratory feature is selected and a respiratory signal is generated based on the multiple CT scans.
Claims29
A computer-implemented method for generating a respiratory signal from computer tomography (CT) scans, the method comprising:
- retrieving, by one or more data processing apparatuses, a plurality of CT scans of an anatomical feature of a human from one or more computer-readable storage devices in which the plurality of CT scans are stored;
- determining, by the one or more data processing apparatuses, from the plurality of CT scans, a plurality of respiratory features;
- generating, by the one or more data processing apparatuses, a respiratory signal for each respiratory feature directly from the plurality of CT scans based on the plurality of respiratory features and an optimal respiratory feature selected from the plurality of respiratory features;
- and
- from the respiratory signals identified for the plurality of respiratory features, deriving a spatial coherence which is an average pair-wise correlation coefficient, wherein the correlation coefficient is a measure of a quality of the respiratory feature, wherein the spatial coherence is calculated as
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- wherein sit is the respiratory signal at the ith slice position and at a particular couch position, N is a number of slice positions per couch position, T is a number of reconstructed axial CT slices per slice location, and
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- is an average of sit over time.
A computer-implemented method for generating a respiratory signal from computer tomography (CT) scans, the method comprising:
- retrieving, by one or more data processing apparatuses, a plurality of CT scans of an anatomical feature of a human from one or more computer-readable storage devices in which the plurality of CT scans are stored;
- determining, by the one or more data processing apparatuses, from the plurality of CT scans, a plurality of respiratory features;
- and
- generating, by the one or more data processing apparatuses, a respiratory signal directly from the plurality of CT scans based on the plurality of respiratory features and an optimal respiratory feature selected from the plurality of respiratory features.
A computer-readable medium tangibly storing computer software instructions executable by data processing apparatus to perform operations for generating a respiratory signal from computer tomography (CT) scans, the operations comprising:
- processing a plurality of CT scans of an anatomical feature of a human to obtain a plurality of respiratory features;
- selecting an optimal respiratory feature from the plurality of respiratory features;
- and
- generating a respiratory signal directly from the plurality of CT scans based on the plurality of respiratory features and an optimal respiratory feature selected based on the plurality of respiratory features.
A program which makes a computer execute procedures, the procedures comprising:
- receiving a plurality of computer tomography (CT) scans of an anatomical feature of a human, wherein each CT scan comprises a plurality of pixels;
- determining from the plurality of CT scans, a plurality of respiratory features;
- selecting, by the data processing apparatus, an optimal respiratory feature from the plurality of respiratory features;
- and
- generating a respiratory signal directly from the plurality of CT scans based on the plurality of respiratory features.
A system comprising:
- means for receiving a plurality of computer tomography (CT) scans of an anatomical feature of a human, wherein each CT scan comprises a plurality of pixels;
- means for determining from the plurality of CT scans, a plurality of respiratory features;
- means for selecting an optimal respiratory feature from the plurality of respiratory features;
- and
- means for generating a respiratory signal directly from the plurality of CT scans based on the plurality of respiratory features.
Dependencies are inferred from the claim text.