Magnetic resonance guided stereotactic radiosurgery
AssigneeAlberta Health Services
InventorsB. Gino Fallone, Brad Murray, Satyapal Rathee
Life of this patent
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Abstract
A magnetic resonance imaging (MRI) and radiation therapy system is described. The system has a magnet gantry, an MRI apparatus, a patient support system and a radiation source head. The magnet gantry is configured to rotate about a magnet gantry axis. The MRI apparatus is coupled to the magnet gantry. The radiation source head is coupled to the MRI apparatus via a radiation source arm. The radiation source head is configured to emit a treatment beam at varying angles with respect to an azimuthal gantry axis. A method for performing stereotactic radiosurgery (SRS) using a magnetic resonance (MR)-SRS is also described.
Claims20
A magnetic resonance imaging (MRI) and radiation therapy system, the system comprising:
- a magnet gantry configured to rotate about a magnet gantry axis;
- an MRI apparatus coupled to the magnet gantry;
- a patient support system;
- and
- a radiation source head coupled to the MRI apparatus via a radiation source arm;
- wherein the radiation source head is configured to emit a treatment beam at varying angles with respect to an azimuthal gantry axis.
A method for performing stereotactic radiosurgery (SRS) using a magnetic resonance (MR)-SRS system, the method comprising:
- generating a treatment plan in accordance with at least one acquired MR image of a target;
- treating the target using a radiotherapy treatment beam of the MR-SRS system based on the treatment plan, wherein the MR-SRS system comprises a magnet gantry configured to rotate about a magnet gantry axis;
- an MRI apparatus coupled to the magnet gantry;
- a patient support system;
- and a radiation source head coupled to the MRI apparatus via a radiation source arm, wherein the radiation source head is configured to emit the radiotherapy treatment beam at varying angles with respect to an azimuthal gantry axis;
- acquiring further MR images simultaneously to the treating the target to detect motion of the target;
- and
- modifying the treating the target to correct for the motion of the target.
A magnetic resonance imaging (MRI) and radiation therapy system, the system comprising:
- a magnet gantry configured to rotate about a magnet gantry axis,
- an MRI apparatus coupled to the magnet gantry;
- a patient support system;
- and
- an arcuate radiation source tray coupled to the MRI apparatus, the source tray comprising a plurality of spaced apart radiation sources;
- wherein the radiation source tray is configured to emit a treatment beam at varying angles with respect to an azimuthal axis.
Dependencies are inferred from the claim text.