Method for Depositing Radiation in Heart Muscle
AssigneeCyberHeart, Inc.
InventorsJohn Adler, Thilaka Sumanaweera, Patrick Maguire
Life of this patent
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Abstract
Radiosurgical treatment of tissues of the heart to mitigate arrhythmias such as atrial fibrillation or the like. Radiosurgical targeting of the relatively rapid movement of heart tissues may be enhanced by generating a moving model volume using a time-sequence of three dimensional acquired tissue volumes. A digitally reconstructed radiograph (DRR) may be generated from the model at a desired cardiac and/or respiration motion phase and compared to an X-ray or the like taken immediately before or during treatment. When a series of radiation beams will be directed to a heart tissue to alleviate an arrhythmia, the treatment system may alter the radiation beam series in response to the type of the arrhythmia.
Claims35
A method for treating a moving target tissue, the method comprising:
- acquiring at least one image of the target tissue;
- generating a simulated image from a model volume;
- computing a similarity measure between the image(s) and the simulated image;
- configuring a robot in response to the similarity measure;
- and
- firing a radiation beam from the configured robot.
A method for treating a moving target tissue of the heart, the method comprising:
- acquiring at least one computer tomography (“CT”) volume of the heart;
- acquiring at least one X-ray of the heart;
- generating a digitally reconstructed radiograph (“DRR”) from the CT volume;
- computing a similarity measure between the X-ray and the DRR;
- configuring a robot dependent on the similarity measure;
- and
- firing a radiation beam from the configured robot.
A system for treating a moving target tissue, the system comprising:
- an image acquisition system for acquiring at least one image of the target tissue;
- a processor coupled to the image acquisition system, the processor configured for:
- generating a simulated image from a model volume, the model volume including a motion model of the target tissue;
- computing a similarity measure between the image and the simulated image;
- and
- determining a configuration in response to the similarity measure;
- a robot coupled to the processor for implementing the configuration;
- and
- a radiation beam source supported by the robot.
A system for treating a moving target tissue of the heart, the method comprising:
- a processor;
- a computer tomography (“CT”) system coupled to the processor so as to transmit an acquired volume of the heart thereto;
- an X-ray system coupled to the processor so as to transmit an acquired image of the heart thereto;
- a robot coupled to the processor;
- and
- a radiation source supported by the processor;
- the processor having a DRR module generating a digitally reconstructed radiograph (“DRR”) from the CT volume, a similarity module generating a similarity measure between the X-ray and the DRR, the processor configuring the robot dependent on the similarity measure, and firing a series of the radiation beams from the radiation source so as to treat the moving tissue.
Dependencies are inferred from the claim text.