An image-guided method and radio therapy device are provided. The method includes: acquiring a rotation offset, a planned image and a real-time image of a target object; and determining a tracking offset based on the rotation offset, the planned image and the real-time image, the tracking offset being used for tracking the target object; where the rotation offset is generated by a position difference of the target object in a planning stage and a treatment stage. The planned image of the target object is acquired in the planning stage. The tracking offset is determined based on the rotation offset, the planned image and the real-time image. The tracking of the target object based on the tracking offset compensates for image distortion caused by the deflection of the position of the target object in the planning stage and the treatment stage.

A patient irradiation treatment plan verification system, the system constituted of: a treatment irradiation source arranged to output a treatment irradiation beam; a first detector; and a patient support member arranged to support a patient, the patient support member positioned between the treatment irradiation source and the first detector, wherein the first detector is arranged to detect the output treatment irradiation beam after the output treatment irradiation beam has irradiated the supported patient and output information regarding the detected irradiation beam.

A control driving method for a radiotherapy device is disclosed. The radiotherapy device includes a collimator and a plurality of radioactive sources, wherein the radioactive sources are disposed within a preset angle range in a longitude direction, the longitude direction being a circular direction perpendicular to a central axis of the radiotherapy device, and the radioactive sources are configured to emit beams that intersect at a common focus after being collimated by a collimator. The method comprises: obtaining at least one protection angle range and driving the radiotherapy device such that no beam from the plurality of the radioactive sources within the at least one protection angle range is emitted.

The disclosure provides a low-dose image reconstruction method and system based on prior anatomical structure difference. The method includes: determining the weights of different parts in the low-dose image based on prior information of anatomical structure differences; constructing a generative network being taking the low-dose image as input extract features, and integrating the weights of the different parts in the feature extraction process, outputting a predicted image; constructing a determining network being taking the predicted image and standard-dose image as input, to distinguish the authenticity of the predicted image and standard-dose image as the first optimization goal, and identifying different parts of the predicted image as the second optimization goal, collaboratively training the generative network and the determining network to obtain the mapping relationship between the low-dose image and the standard-dose image; and reconstructing the low-dose image by using the obtained mapping relationship. The disclosure can obtain more accurate high-definition images.

The disclosed method encompasses acquiring position data. The position data describes predetermined positions of a treatment device. At each of the predetermined positions, an imaging condition is fulfilled. Such an imaging condition is for a free line of sight of two (stereo-)imaging units at the same time. In a next step, the current position of the treatment device is acquired. Then, the current position is compared with the predetermined positions. In case the current position corresponds to a predetermined position, decision data is determined which describes that an image shall be taken. In a next step, control data is determined which describes a control signal for an imaging device to take an image or not to take an image, depending on the decision data.

A tumor positioning method includes obtaining projection images of a tumor at different angles; and registering the projection images with an initial reference image to obtain a first offset. If it is determined that a virtual reacquisition operation needs to be performed according to the first offset, the method further includes generating a first reference image according to the first offset; and registering the projection images with the first reference image to obtain a second offset. If it is determined that the operation does not need to be performed according to the second offset, the method further includes outputting a first accumulated offset being a sum of the first and second offsets. The method may solve problems of long time consuming and the service life of a treatment couch and acquisition devices being reduced due to repeatedly moving the treatment couch and repeatedly acquiring the X-ray projection images.

Devices, systems, and methods for planning radiosurgical treatments for neuromodulating a portion of the renovascular system may be used to plan radiosurgical neuromodulation treatments for conditions or disease associated with elevated central sympathetic drive. The renal nerves may be located and targeted at the level of the ganglion and/or at postganglionic positions, as well as preganglionic positions. Target regions include the renal plexus, celiac ganglion, the superior mesenteric ganglion, the aorticorenal ganglion and the aortic plexus. Planning of radiosurgical treatments will optionally employ a graphical representation of a blood/tissue interface adjacent these targets.

An imaging apparatus includes a first X-ray detector that includes: a low energy scintillator operable to convert an incident X-ray spectrum into a first set of light photons; a first light imaging sensor operable to generate a set of low energy image signals from the first set of light photons, wherein a first exit radiation is a remainder portion of the first incident radiation after the X-ray spectrum passes through the low energy scintillator and the first light imaging sensor; an energy-separation filter operable to absorb or reflect at least a portion of the energy of the first exit X-ray spectrum and convert the first exit X-ray spectrum into a second exit X-ray spectrum; a second X-ray detector that includes: a high energy scintillator operable to convert the second exit X-ray spectrum into a second set of light photons; a second light imaging sensor operable to generate a set of high energy image signals from the second set of light photons; and a processor configured to: generate a high-energy image that is based on the set of high energy image signals and a low-energy image that is based on the set of low energy image signals; and perform a comparison of the high-energy image from the low-energy image to generate a soft tissue image.

A method and apparatus for manipulation of a respiratory model via adjustment of parameters associated with model images is described. The method includes identifying one of more images of a plurality of images that are used with a previously generated model associated with a position and motion of a targeted region of a patient to receive radiation treatment. The method also includes generating, by a processing device, a new model to be associated with the position and motion of the targeted region based on a selection that is associated with one of the one or more images of the plurality of images, wherein the new model is a relationship between a series of internal features and external marker positions. The method further includes delivering radiation to the targeted region based on the new model.

A method of image-guided radiation treatment is described. The method may include acquiring a pre-treatment image of a patient and generating a first set of image data of part or all of the patient using imaging radiation at a first energy level and a second set of image data of part or all of the patient using imaging radiation at a second energy level. The method may also include processing the first and second sets of image data to generate an enhanced image, wherein the enhanced image comprises a combination of the first and second sets of image data, and wherein part or all of the image data comprises the target. The method may also include registering the enhanced image with the pre-treatment image to obtain a registration result and tracking movement and position of the target using the registration result to generate tracking information.