Systems, devices, and methods are presented for automatic tuning, calibration, and verification of radiation therapy systems comprising control elements configured to control parameters of the radiation therapy systems based on images obtained using electronic portal imaging devices (EPIDs) included in the radiation therapy system.

A therapeutic apparatus comprising a radiotherapy apparatus for treating a target zone and a magnetic resonance imaging system for acquiring magnetic resonance imaging data. The radiotherapy apparatus comprises a radiotherapy source for directing electromagnetic radiation into the target zone. The radiotherapy apparatus is adapted for rotating the radiotherapy source at least partially around the magnetic resonance magnet. The magnetic resonance imaging system further comprises a radio-frequency transceiver adapted for simultaneously acquiring the magnetic resonance data from at least two transmit-and-receive channels. The therapeutic apparatus further comprises a processor and a memory containing machine executable instructions for the processor. Execution of the instructions causes the processor to: calibrate the transmit-and-receive channels; acquire the magnetic resonance data; reconstruct a magnetic resonance image; register a location of the target zone in the image; and generate radiotherapy control signals using the registered image.

Provided is a method for checking consistency between a radiotherapy equipment isocenter and a treatment isocenter, wherein the method includes: acquiring projection data from a detector and generating image data based on the projection data, wherein the image data includes a light spot and a shading located in the light spot, and the light spot and the shading are formed by a radiation beam generated by a treatment head of the radiotherapy equipment and then being blocked by a radiation blocking body; and determining an offset between the radiotherapy equipment isocenter and the treatment isocenter based on the image data. A system and a device for checking consistency between a radiotherapy equipment isocenter and a treatment isocenter are also provided.

Systems, devices, and methods are presented for automatic tuning, calibration, and verification of radiation therapy systems comprising control elements configured to control parameters of the radiation therapy systems based on images obtained using electronic portal imaging devices (EPIDs) included in the radiation therapy system.

The present disclosure relates to a medical system. The medical system may determine a working phase of the medical system. The working phase of the medical system may include a positioning phase, a scanning phase, and/or a scanning completion phase. The medical system may determine a position of a target portion of an object in the medical system based on one or more images associated with the object captured by an imaging sensor. The medical system may further control an operation of a positioning lamp of the medical system based on the working phase of the medical system and the position of the target portion of the object in the medical system.

Disclosed is a bore based medical system comprising a camera carrier configured to be mounted in the bore based medical system and configured to monitor and/or track patient motion within said bore based medical system during radiotherapy, the bore based medical system comprising a rotatable ring-gantry configured to emit a radiotherapy beam focused at an iso-center of the bore based medical system, wherein the ring-gantry is configured to rotate at least partly around a through-going bore having a front side and a back side, configured to receive from said front side, a movable couch configured to be moved into and out from the through-going bore, wherein further the through-going bore comprises an inner side facing an inside of the bore, and wherein the camera carrier is configured to be mounted inside the bore in connection with the inner side of the through-going bore.

Techniques include receiving a treatment plan for a subject, including a body outline, a position on a couch, and, for each gantry angle, a couch angle an isocenter and target volumes to which a radiation source is directed. A perspective transform matrix is based on projected coordinates of reference points from a digital image projector onto each different plane perpendicular to a beam from the radiation source at different distances. Two-dimensional spot positions for a gantry and couch angle are determined based on the treatment plan. A group of spot positions are determined based on a common distance from the radiation source to the body outline. Illuminated spots on a projection image are determined based on the group and the perspective transform matrix closest to the common distance. The projection image is projected from the image projector onto the subject on the couch.

A medical image processing device includes a first image acquirer and a tracker. The first image acquirer is configured to acquire a fluoroscopic image of a patient as a first image. The tracker is configured to track an object photographed in the first image on the basis of a first feature common to object images that are a plurality of images of the object obtained by observing the object placed within a body of the patient in a plurality of directions.

A medical image processing device according to an embodiment includes a region-of-interest acquirer, a treatment plan acquirer, a degree-of-influence calculator, and a display controller. The region-of-interest acquirer is configured to acquire a partial region within a body of a patient as a region of interest. The treatment plan acquirer is configured to acquire treatment plan information determined in a planning stage of radiation treatment to be performed on the patient. The degree-of-influence calculator is configured to calculate a degree of influence representing an influence on the region of interest up to a range until radiation with which the patient is irradiated reaches a target portion to be treated within the body of the patient. The display controller is configured to generate a display image in which information regarding the degree of influence is superimposed on a current fluoroscopic image of the patient and causes a display to display the display image.

Provided is a setup method which can include: acquiring a position of a reference mark point provided on a noninvasive positioning device in an infrared coordinate system of an infrared positioning system; according to the position of the reference mark point in the infrared coordinate system, a relative position between the reference mark point and an image center point in an electronic scanning image, and a position of an isocenter of a radiotherapy equipment in a patient supporting device PSD coordinate system of the radiotherapy equipment, determining a first offset between the image center point and the isocenter in the PSD coordinate system; and adjusting the first offset to a first target offset by adjusting a position of a patient supporting device in the PSD coordinate system.