Rebecca Fahrig,Norbert J. Pelc,Kim Pauly,Greig C. Scott,Amit Sawant,Paul J. Keall,Lei Xing,Steven M. Conolly
申请号：
US12661303
公开号：
US08331531B2
申请日:
2010.03.15
申请国别(地区):
US
年份:
2012
代理人:
摘要：
The present invention provides a radiotherapy treatment apparatus that includes a treatment beam, a magnetic field disposed parallel collinear to the treatment beam, and a target that is disposed along the treatment beam. The treatment beam can be a charged particle beam, a proton beam, an electron beam, or a linear accelerator (Linac) beam. The magnetic field is from a magnetic resonance imager (MRI), a megavolt x-ray imager, or a kilovolt x-ray imager and is disposed to operate in coordination with operation of the treatment beam and to narrow the beam. The tumor is disposed to rotate with respect to the treatment beam and the magnetic field, or the treatment beam and the magnetic field are disposed to rotate up to 360° with respect to the target when mounted to a ring gantry. The apparatus can include a rotation angle dependent shim disposed to account for Earths magnetic field.
