According to an X-ray CT apparatus and a scanning method of the present invention, in order to efficiently create an image used for diagnosis, an operator selects a desired part from a part selection GUI before main scanning by using an ROI object imitating a shape of each part, held in a storage device, and thus the ROI object can be disposed on a scanogram image, in which setting information corresponding to a part is set for the ROI object in advance, a region of interest associated with the part is set, main scanning is performed under conditions associated with the set region of interest, and an image is reconstructed on the basis of X-ray information obtained through the main scanning.

A radiographic image capturing apparatus includes: scanning and signal lines; a two-dimensional array of detecting elements defining a detecting part; a control unit that reads image data from all detecting elements in a reading area of the detecting part by repeating a cycle of a readout process at N-line intervals, wherein the scanning line subjected to the readout process is shifted every cycle, where N is an integral number of at least 1; and a communication unit for external communication. The control unit detects a radiation emission start of a radiation irradiating apparatus, and if the readout process starts with an N+1th or any subsequent scanning line and then starts with any of first to N+1th scanning lines in a certain cycle, the control unit transfers the image data read in the certain cycle as preview image data substantially concurrently with the readout process.

A system can have an x-ray source that generates a series of individual x-ray pulses for multi-energy imaging. A first x-ray pulse can have a first energy level and a subsequent second x-ray pulse in the series can have a second energy level different from the first energy level. An x-ray imager can receive the x-rays from the x-ray source and can detect the received x-rays for image generation. A generator interface box (GIB) controls the x-ray source to provide the series of individual x-ray pulses and synchronizes detection by the x-ray imager with generation of the individual x-ray pulses. The GIB can control x-ray pulse generation and synchronization to optimize image generation while minimizing unnecessary x-ray irradiation.

An imaging control apparatus obtains a plurality of images at different radiation energies, the images having been obtained as a result of irradiating a subject with radiation whose energy changes during one shot, and detecting, a plurality of times, the radiation that has passed through the subject during the one shot; generates an energy subtraction image by performing energy subtraction processing using a plurality of images; and generates a difference image using a plurality of generated energy subtraction images.

An estimated exposure dose calculator calculates an estimated exposure dose, which is an estimate of an exposure dose of a subject by irradiation of radiation, on the basis of the image capturing conditions after the image capturing conditions are set and prior to the radiation imaging. An exposure dose output unit outputs the calculated estimated exposure dose to the outside.

A system for tracking tumors during radiotherapy by interleaving treatment pulses with imaging pulses is disclosed. The system includes a multisource scanning eBeam X-ray tube having a plurality of focal spots. The X-ray tube is configured to emit X-rays to a plurality of different locations on a target by sequentially emitting the X-rays to the focal spots in the plurality of focal spots. This is done such that the X-rays can be emitted to the plurality of different locations on the target without substantially moving the X-ray tube or the target. The system further includes an imager panel configured to act as the target and configured to receive the X-rays from the focal spots of the X-ray tube. The system further includes a tomosynthesis reconstruction module configured to process output from the imager panel to construct an image.

An emitter is configured to move around the object and to emit radiation toward an object. A controller is configured to control the emitter to stop a radiation emission, when the emitter is located in a radiation reception zone in which the radiation emitted by the emitter is received or in which the radiation emitted by the emitter is supposed to be received.

A radiographic imaging system that includes: a radiation detector including an imaging region in which a plurality of pixels are provided, each pixel including a sensor portion that generates charges in accordance with radiation amounts of irradiated radiation and accumulates the generated charges during an accumulation period, and a switching element that reads out the charges from the sensor portion after the accumulation period; an imaging control section that images a radiographic image by sequentially imaging radiographic images during the accumulation period using division regions, into which the imaging region of the radiation detector is plurally divided, one at a time; and a display control section that displays, at a display section, information relating to remaining imaging until the imaging is complete, the information representing a state of progress of the imaging by the imaging control section.

Disclosed is an X-ray image forming device is disclosed. The device includes an X-ray imaging unit including a rotating member rotatable about a rotating shaft and linearly movable, and an X-ray source and an X-ray sensor disposed at opposite ends of the rotating member to face each other with a region of interest therebetween, a penetration data acquisition unit configured to acquire X-ray penetration data from multiple directions crossing through an image layer in the region of interest by controlling the X-ray imaging unit and an image reconstructor configured to generate projection data in a predetermined angle range at each section of the image layer from the X-ray penetration data, and reconstruct a two-dimensional X-ray panoramic image of the image layer based on the projection data.

A method for adjusting a radiation dose during imaging of an object within a subject is provided. The method includes identifying a task in a first frame that contains the object, the first frame generated via exposing the subject to a radiation beam; and adjusting the radiation beam based at least in part on the task prior to generating a second frame that contains the object, the second frame generated via exposing the subject to the radiation beam.