Method and system for predictive physiological gating
First Claim
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1. A method for use in a radiation procedure, comprising:
- obtaining a first set of data representative of a respiratory motion of a patient;
obtaining a second set of data representative of a reference respiratory motion;
performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion, wherein the analysis is performed using a processor; and
generating a signal to control a treatment machine in a radiation procedure based at least on a result of the step of performing;
wherein a portion of the respiratory motion and a portion of the reference respiratory motion are parts of a same breathing cycle; and
wherein the processor comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion.
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Abstract
A method and system for physiological gating is disclosed. A method and system for detecting and predictably estimating regular cycles of physiological activity or movements is disclosed. Another disclosed aspect of the invention is directed to predictive actuation of gating system components. Yet another disclosed aspect of the invention is directed to physiological gating of radiation treatment based upon the phase of the physiological activity. Gating can be performed, either prospectively or retrospectively, to any type of procedure, including radiation therapy or imaging, or other types of medical devices and procedures such as PET, MRI, SPECT, and CT scans.
218 Citations
46 Claims
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1. A method for use in a radiation procedure, comprising:
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obtaining a first set of data representative of a respiratory motion of a patient; obtaining a second set of data representative of a reference respiratory motion; performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion, wherein the analysis is performed using a processor; and generating a signal to control a treatment machine in a radiation procedure based at least on a result of the step of performing; wherein a portion of the respiratory motion and a portion of the reference respiratory motion are parts of a same breathing cycle; and wherein the processor comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for use in a radiation procedure, comprising:
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obtaining a first set of data representative of a respiratory motion of a patient; obtaining a second set of data representative of a reference respiratory motion; performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion, wherein the analysis is performed using a processor; and generating a signal for physiological gating of a medical procedure based at least on a result of the step of performing; wherein the performing comprises determining a degree of deviation between the respiratory motion and the reference respiratory motion; and wherein the processor comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion. - View Dependent Claims (14)
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15. An apparatus comprising a computer-readable medium, the computer-readable medium having a set of stored instructions, an execution of which causes a process to be performed by a processor, the process comprising:
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obtaining a first set of data representative of a respiratory motion of a patient; obtaining a second set of data representative of a reference respiratory motion; performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion; and generating a signal to control a treatment machine in a radiation procedure based at least on a result of the step of performing; wherein a portion of the respiratory motion and a portion of the reference respiratory motion are parts of a same breathing cycle; and wherein the processor comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A system for use in a radiation procedure, comprising:
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means for obtaining a first set of data representative of a respiratory motion of a patient; means for obtaining a second set of data representative of a reference respiratory motion; means for performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion; and means for generating a signal to control a treatment machine in a radiation procedure based at least on a result of the step of performing; wherein a portion of the respiratory motion and a portion of the reference respiratory motion are parts of a same breathing cycle. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33)
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34. A method for use in a radiation procedure, comprising:
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obtaining a first set of data representative of a respiratory motion of a patient; obtaining a second set of data representative of a reference respiratory motion; performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion, wherein the analysis is performed using a processor; and generating a signal for physiological gating of a medical procedure based at least on a result of the step of performing; wherein the act of performing the analysis comprises using an autocorrelation function; and wherein the processor comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion.
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35. A method for use in a radiation procedure, comprising:
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obtaining a first set of data representative of a respiratory motion of a patient; obtaining a second set of data representative of a reference respiratory motion; performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion, wherein the analysis is performed using a processor; and generating a signal for physiological gating of a medical procedure based at least on a result of the step of performing; wherein the act of performing the analysis comprises using an absolute function; and wherein the processor comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion.
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36. An apparatus comprising a computer-readable medium, the computer-readable medium having a set of stored instructions, an execution of which causes a process to be performed by a processor, the process comprising:
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obtaining a first set of data representative of a respiratory motion of a patient; obtaining a second set of data representative of a reference respiratory motion; performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion; and generating a signal for physiological gating of a medical procedure based at least on a result of the step of performing; wherein the act of performing the analysis comprises determining a degree of deviation between the respiratory motion and the reference respiratory motion; and wherein the processor comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion. - View Dependent Claims (37)
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38. An apparatus comprising a computer-readable medium, the computer-readable medium having a set of stored instructions, an execution of which causes a process to be performed by a processor, the process comprising:
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obtaining a first set of data representative of a respiratory motion of a patient; obtaining a second set of data representative of a reference respiratory motion; performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion; and generating a signal for physiological gating of a medical procedure based at least on a result of the step of performing; wherein the act of performing the analysis comprises using an autocorrelation function; and wherein the processor comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion.
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39. An apparatus comprising a computer-readable medium, the computer-readable medium having a set of stored instructions, an execution of which causes a process to be performed by a processor, the process comprising:
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obtaining a first set of data representative of a respiratory motion of a patient; obtaining a second set of data representative of a reference respiratory motion; performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion; and generating a signal for physiological gating of a medical procedure based at least on a result of the step of performing; wherein the act of performing the analysis comprises using an absolute function; and wherein the processor comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion.
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40. A system for use in a radiation procedure, comprising:
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means for obtaining a first set of data representative of a respiratory motion of a patient; means for obtaining a second set of data representative of a reference respiratory motion; means for performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion; and means for generating a signal for physiological gating of a medical procedure based at least on a result of the step of performing; wherein the means for performing the analysis is configured to determine a degree of deviation between the respiratory motion and the reference respiratory motion; and wherein the means for performing comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion. - View Dependent Claims (41)
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42. A system for use in a radiation procedure, comprising:
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means for obtaining a first set of data representative of a respiratory motion of a patient; means for obtaining a second set of data representative of a reference respiratory motion; means for performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion; and means for generating a signal for physiological gating of a medical procedure based at least on a result of the step of performing; wherein the means for performing the analysis is configured to use an autocorrelation function; wherein the means for performing comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion.
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43. A system for use in a radiation procedure, comprising:
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means for obtaining a first set of data representative of a respiratory motion of a patient; means for obtaining a second set of data representative of a reference respiratory motion; means for performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion; and means for generating a signal for physiological gating of a medical procedure based at least on a result of the step of performing; wherein the means for performing the analysis is configured to use an absolute function; and wherein the means for performing comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion.
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44. A method for use in a radiation procedure, comprising:
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obtaining a first set of data representative of a respiratory motion of a patient; obtaining a second set of data representative of a reference respiratory motion; performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion, wherein the analysis is performed using a processor; and generating a signal for physiological gating of a medical procedure based at least on a result of the step of performing; wherein the first set of data comprises a first plurality of data, the second set of data comprises a second plurality of data, and the act of performing the analysis comprises performing an autocorrelation function using the first plurality of data and the second plurality of data; wherein the processor comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion.
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45. An apparatus comprising a computer-readable medium, the computer-readable medium having a set of stored instructions, an execution of which causes a process to be performed by a processor, the process comprising:
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obtaining a first set of data representative of a respiratory motion of a patient; obtaining a second set of data representative of a reference respiratory motion; performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion; and generating a signal for physiological gating of a medical procedure based at least on a result of the step of performing; wherein the first set of data comprises a first plurality of data, the second set of data comprises a second plurality of data, and the act of performing the analysis comprises performing an autocorrelation function using the first plurality of data and the second plurality of data; wherein the processor comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion.
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46. A system for use in a radiation procedure, comprising:
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means for obtaining a first set of data representative of a respiratory motion of a patient; means for obtaining a second set of data representative of a reference respiratory motion; means for performing an analysis using the first and the second sets of data to compare the respiratory motion with the reference respiratory motion; and means for generating a signal for physiological gating of a medical procedure based at least on a result of the step of performing; wherein the first set of data comprises a first plurality of data, the second set of data comprises a second plurality of data, and the means for performing the analysis is configured to perform an autocorrelation function using the first plurality of data and the second plurality of data; and wherein the means for performing comprises a respiratory motion comparison module configured to perform the analysis using the first and second sets of data to compare the respiratory motion with the reference respiratory motion.
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Specification