An absorbing device (24, 24, 24, 41) for radiotherapy treatment comprising at least one layer of electromagnetic absorbing material wherein the absorbing material is for preventing interaction between a target localisation system (1) having a targeted frequency range of between about 300 kHz and 500 kHz and a treatment table (4).

Subject positioning systems and methods are provided. A method may include obtaining first information of at least part of a subject when the subject is located at a preset position, and determining, based on the first information, a first position of each of one or more feature points located on the at least part of the subject. The method may include obtaining, using an imaging device, second information of the at least part of the subject when the subject is located at a candidate position. The method may further include determining, based on the second information, a second position of each of the one or more feature points, a first distance between the first position and the second position for each feature point of the one or more feature points, and a target position of the subject based at least in part on the one or more first distances.

The patient transport system has a mobile patient transport device for docking at a medical device, an acquisition device for acquiring suitable information for docking, and a control device for docking control of the mobile patient transport device. An evaluation device is coupled to the acquisition device and used the information acquired by the acquisition device to establish a path of the patient transport device. An optical or acoustic designation device specifies the established path of the patient transport device by at least one optical marking and/or acoustic signals. The optical marking and/or the acoustic signals are detected and control information is derived therefrom.

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.

A patient transfer system is provided to move a patient between modalities. The system includes a deploying modality having a top surface configured to support the patient; a patient transfer support positionable on the top surface of the deploying modality, the patient transfer support also being configured for movement from the top surface of the deploying modality to a top surface of the receiving modality; a patient transfer support locating feature positionable to limit movement of the patient transfer support relative to the top surface of the receiving modality; and a keying feature positionable to engage at least one of a surface associated with the receiving modality or a surface of the patient transfer support, the keying feature being configured to inhibit movement of the patient transfer support in at least one direction relative to the top surface of the receiving modality. The patient transfer support locating feature limits the range of movement of the patient transfer support relative to the top surface of the receiving modality when the patient transfer support is moved from the top surface of the deploying modality to the top surface of the receiving modality.

A radiation medical device, comprising a main support, and a radiation assembly (30) and an imaging assembly (20) respectively located at both ends of the main support. After an imaging scan is completed and pathological tissue positioning pictures are taken, a patient is directly moved to the other end of the main support to allow the radiation assembly (30) to perform radiation therapy to improve the efficiency of the radiation therapy after the completion of pathological tissue positioning, and effectively reduce movement of the patient when the patient is being moved for radiation therapy after the imaging assembly (20) completes pathological tissue positioning, thus reducing pathological tissue positioning error caused by too much movement.

A device for accurately locate the tumor in a radiation therapy machine (RTM) based on the patient's CT image is disclosed. The device immobilizes a patient in a repeatable location when a CT scan is made and the radiation therapy is given. The device includes a base plate to support the patient, on which there are: a pair of pins to constrain the armpits of the patient, a pair of shoulder pads to constrain the shoulders of the patient, a headrest and head pads to constrain the head of the patient, markers, and a jaw restrainer secured to the head pads. Coordinate transformations will be used to locate the tumor in the RTM.

A system including a diagnostic-quality CT scanner for imaging a patient, the diagnostic-quality CT scanner having an imaging isocenter and a radiation therapy device positioned adjacent the diagnostic-quality CT scanner, the radiation therapy device including a gantry carrying a radiation therapy beam source and having a radiation therapy isocenter separate from the imaging isocenter of the diagnostic-quality CT scanner. The system including a couch configured to position the patient for imaging and for radiation therapy by translating the patient between the diagnostic quality CT scanner and the radiation therapy device.

Subject positioning systems and methods are provided. A method may include obtaining first information of at least part of a subject when the subject is located at a preset position, and determining, based on the first information, a first position of each of one or more feature points located on the at least part of the subject. The method may include obtaining, using an imaging device, second information of the at least part of the subject when the subject is located at a candidate position. The method may further include determining, based on the second information, a second position of each of the one or more feature points, a first distance between the first position and the second position for each feature point of the one or more feature points, and a target position of the subject based at least in part on the one or more first distances.

A medical radiation device, including a main frame, and a radiation assembly and an imaging assembly respectively located at an end of the main frame. After an imaging scan is completed and diseased tissue positioning images are taken, a patient is directly moved to the other end of the main frame to allow the radiation assembly to perform a radiation treatment to improve the efficiency of the radiation treatment after the completion of diseased tissue positioning, and effectively reduce movement of the patient when the patient is being moved for radiation treatment after the imaging assembly completes diseased tissue positioning, thus reducing a positioning error of the diseased tissue caused by too much movement.