A virtual beam's-eye view of a planning target volume is generated based on volumetric image data acquired immediately prior to radiation therapy by a radiation therapy system. The virtual beam's-eye view can then be displayed to confirm that, with the patient disposed in the current position, the planned beam-delivered treatment extends beyond the surface of the skin. In some embodiments, the virtual beam's-eye view can be displayed in conjunction with a beam's-eye view that is generated based on volumetric image data acquired during treatment planning, to create a blended beam's-eye view. In some embodiments, a field outline of a treatment beam can be superimposed on the blended beam's-eye view, thereby illustrating whether the planned beam-delivered treatment extends beyond the surface of the skin of the patient. The blended beam's-eye view can facilitate a manual confirmation process that verifies the planned beam-delivered treatment extends beyond the surface of the skin.

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 virtual beam's-eye view of a planning target volume is generated based on volumetric image data acquired immediately prior to radiation therapy by a radiation therapy system. The virtual beam's-eye view can then be displayed to confirm that, with the patient disposed in the current position, the planned beam-delivered treatment extends beyond the surface of the skin. In some embodiments, the virtual beam's-eye view can be displayed in conjunction with a beam's-eye view that is generated based on volumetric image data acquired during treatment planning, to create a blended beam's-eye view. In some embodiments, a field outline of a treatment beam can be superimposed on the blended beam's-eye view, thereby illustrating whether the planned beam-delivered treatment extends beyond the surface of the skin of the patient. The blended beam's-eye view can facilitate a manual confirmation process that verifies the planned beam-delivered treatment extends beyond the surface of the skin.

A computer implemented method of treatment targeting includes receiving magnetic resonance (MR) images of a subject including a target region, generating at least one contour of at least one surrogate element apart from the target region in the MR images, and determining a location of the target region in each of the MR images based on a location of the at least one contour in the MR images.

Methods and devices for detecting consistency between an invisible radiation field and a visible light field are provided. In an example, the method includes: an invisible radiation field is obtained by controlling a size of an opening of a beam limiting device; a first projection image is captured by an Electron Portal Imaging Device (EPID) as a distribution map of the invisible radiation field; a visible light field is obtained by turning on a light field lamp without changing the size of the opening of the beam limiting device; a phantom is positioned at each of vertices of the visible light field; a second projection image is captured by the EPID as a vertex distribution map of the visible light field; and deviation information between the invisible radiation field and the visible light field is determined according to the distribution map of the invisible radiation field and the vertex distribution map of the visible light field.

According to one embodiment, the radiotherapy system includes a medical image collecting device, a body surface data collecting device and processing circuitry. The medical image collecting device collects medical three-dimensional image data of the patient at the time of treatment planning. The body surface data collecting device collects body surface data representing a three-dimensional body surface of the patient at the time of treatment planning. The processing circuitry may generate integrated data in which at least one of the medical three-dimensional image data and the treatment target region data included in the medical three-dimensional image data, and the body surface data are integrated into an identical three-dimensional coordinate system.

A medical image processing device 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.

Some embodiments are directed to a patient monitoring system for monitoring the location of a patient at a distance, including a projector operable to project a pattern of light onto the surface of a patient and a imaging system operable to obtain images of a patient on to whom a pattern of light is projected. A heat sink is associated with the projector. A heat source, such as an array of resistors, is configured to apply heat to the heat sink when the projector is not being operated, reducing variation in the temperature of the heat sink which in turn reduces variation in thermal expansion and contraction of the monitoring system which can be a potential source of error for determining the position of a patient being monitored.

Aspects of the present disclosure involve systems, devices, and methods for detecting and treating skin conditions such as skin cancers; more particularly it relates to detection of skin cancers and superficial radiotherapy treatment thereof. The system uses Augmented Reality (AR) display systems that help visualize radiation patterns and overall tumor shape/size at least when setting up for radiotherapy treatment.

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.