An outline of at least a patient on a patient support is determined. Based on at least one image of the patient, a plurality of orientations of the patient support and of at least one device are determined. The at least one device is capable of delivering a radiation treatment to the patient or of performing imaging associated with the radiation treatment. Based on the outline and the plurality of orientations of the patient support and of the at least one device, a clearance zone that no portion of the at least one device will occupy when the at least one device or the patient supported by the patient support is in motion is calculated.

A heavy-particle treatment system exposes a patient's treatment volume, during the course of a single treatment session, to beams of heavy particles from a variety of different angles. The source of heavy particles may rotate about the patient to facilitate that variety of different angles. The foregoing can occur pursuant to a treatment plan that accounts for a penetration range as corresponds to the beams of heavy particles and for using at least one lateral beam controlling device to control at least one of the beams of heavy particles.

Systems, methods, and related computer program products for image-guided radiation treatment (IGRT) are described. For one preferred embodiment, an IGRT apparatus is provided comprising a ring gantry having a central opening and a radiation treatment head coupled to the ring gantry that is rotatable around the central opening in at least a 180 degree arc. For one preferred embodiment, the apparatus further comprises a gantry translation mechanism configured to translate the ring gantry in a direction of a longitudinal axis extending through the central opening. Noncoplanar radiation treatment delivery can thereby be achieved without requiring movement of the patient. For another preferred embodiment, an independently translatable 3D imaging device distinct from the ring gantry is provided for further achieving at least one of pre-treatment imaging and setup imaging of the target tissue volume without requiring movement of the patient.

The present disclosure discloses a radiotherapy apparatus incorporating multi-source focusing therapy and conformal and intensity-modulated therapy. The radiotherapy apparatus comprises a base, a movable couch, a gantry, at least one therapeutic head, and a counterweight. The therapeutic head comprises a shielding part, a source carrier received in the shielding part, provided with a focusing radioactive source for focused therapy and a conformal radioactive source for conformal and intensity-modulated radiotherapy, a switch part configured for controlling on/off the source, a shielding door configured for controllably shielding the radiation beams of the radioactive sources; and a collimator assembly. By using this method as disclosed, a problem of that a single current Gamma Knife device cannot implement both accurate multi-source focused therapy and conformal therapy can be solved.

The invention comprises a patient specific tray insert removably inserted into a tray frame to form a beam control tray assembly, which is removably inserted into a slot of a tray receiver assembly proximate a gantry nozzle of a charged particle cancer treatment system. Optionally, multiple tray inserts, each used to control a different beam state parameter, are inserted into corresponding slots of the tray receiver assembly where the multiple inserts are used to control beam intensity, shape, focus, and/or energy. The beam control tray assembling includes an identifier, such as an electromechanical identifier, of the particular insert type, which is communicated to a main controller, such as via the tray receiver assembly along with slot position and/or patient information.

The invention relates to radiation therapy system. The system includes a five-degree-of-freedom O-shaped arm radiation therapy device and a six-degree-of-freedom parallel radiation therapy bed. The five-degree-of-freedom O-shaped arm radiation therapy device includes an O-shaped arm movement mechanism, a linear accelerator device, a radiation dose detection device and a double-X-ray machine image positioning mechanism. The O-shaped arm movement mechanism includes an O-shaped arm, an accelerator displacement device, a rotational displacement device, a turning displacement device, a horizontal transverse displacement device, and a horizontal longitudinal displacement device. The double-X-ray machine image positioning mechanism includes an X-ray transmitter and receiver. The six-degree-of-freedom parallel radiation includes a base assembly, a connecting rod assembly and a bed plate assembly. The radiation therapy system of the invention achieves five-degree-of-freedom control of a radiation therapy process with high control accuracy and stability, and has flexible spatial positions and high positioning accuracy of the radiation therapy bed.

A beam transport assembly conveys a particle beam from a particle source to an irradiation nozzle, which rotates about a swivel axis at the horizontal input of the nozzle. A support can move horizontally in a plane perpendicular to the swivel axis. The beam transport assembly can change a path length of the particle beam so as to follow a vertical location of the swivel axis of the irradiation nozzle with respect to the support. A controller can coordinate the path length change of the particle beam, rotation of the irradiation nozzle about the swivel axis, and/or horizontal motion of the support to provide irradiation of a supported object from various angles in the plane perpendicular to the swivel axis while maintaining the irradiation nozzle at a constant distance from the supported object.

Particle radiation therapy and planning utilizing magnetic resonance imaging (MRI) data. Radiation therapy prescription information and patient MRI data can be received and a radiation therapy treatment plan can be determined for use with a particle beam. The treatment plan can utilize the radiation therapy prescription information and the patient MRI data to account for interaction properties of soft tissues in the patient through which the particle beam passes. Patient MRI data may be received from a magnetic resonance imaging system integrated with the particle radiation therapy system. MRI data acquired during treatment may also be utilized to modify or optimize the particle radiation therapy treatment.

A method of operating imaging and tracking. The method includes determining, for each angle of a plurality of angles from which tracking images can be generated by an imaging device, a value of a tracking quality metric for tracking a target based on an analysis of a projection generated at that angle. The method also includes selecting, by a processing device, a subset of the plurality of angles that have a tracking quality metric value that satisfies a tracking quality metric criterion, one or more angles of the subset to be used to generate a tracking image of the target during a treatment stage, wherein the subset comprises at least a first angle and a second angle that is at least separated by a minimum threshold from the first angle.

The present invention provides a radiotherapy apparatus (100) to generate both photon and electron beam mounted with dual KV beam ray source used for stereotactic imaging and CBCT (Cone Beam Computed Tomography) image with a greater FOV (Field Of View). The apparatus (IOO) comprises of a ring gantry (101), which includes at least two KV sources (102a and 102b), at least two movable detector (103 and 104) and a LINAC X-ray tube (106). The two movable detectors (103, 104) include a first movable detector (104) and a second movable detector (103). The second movable detector (103) has mechanism capture a half fan mode of X-ray beam of imaging radiation with a greater FOV having 250×450 mm. The half fan mode of X ray is captured by moving the second movable detector (103) or first movable detector (104) further towards the ISO centre (105) of the ring gantry (101).