An image processing apparatus that acquires a plurality of radiographic images captured by irradiating a photographic subject with radiations at different tube voltages. From the plurality of radiographic images, the image processing apparatus generates, for a region of interest selected in the radiographic image, a first region image equivalent to an image to be obtained when a radiation at a first virtual tube voltage is radiated. From the plurality of radiographic images, the image processing apparatus generates, for an unselected region other than the region of interest in the radiographic image, a second region image equivalent to an image to be obtained when a radiation at a second virtual tube voltage according to a distance from the region of interest is radiated. The image processing apparatus generates a combined image obtained by combining the first region image and the second region image together.

A digital radiographic image of a subject is captured using a reduced exposure level of an x-ray source. One or more exposure control regions in the image is mapped and associated with a predetermined exposure level. A difference between the predetermined exposure level setting and the reduced exposure level is used to set a diagnostic exposure level perhaps about twice as high as the reduced exposure level to capture a diagnostic image of the subject.

A method for processing data relating to a radiological examination of a patient by way of a determining device, comprises the steps of acquiring doses (Ci, ti) measured at a plurality of times ti, storing these time-stamped measurements of radiation doses, and acquiring at least one DICOM digital file containing information on the examination, wherein the method comprises the following steps: acquiring and storing at least one DICOM digital file delivered by the tomograph during or after a tomography; acquiring and storing time-stamped measurements of the doses detected via a scintillating fiber placed on the table, and time-stamped movements of the table; interpolating the measurements (Ci, ti) with data of the image (DICOM) in a common interpolated space and constructing a table (Ck, DICOMk) in the interpolated space; and determining a table of the average dose levels Tz in each slice T depending on the data (DICOMk, Ck).

Methods and systems are provided for adaptive scan control. In one embodiment, a method includes upon a first contrast injection, processing acquired projection data of a subject to measure a contrast signal of the first contrast injection, estimating a time when a venous return to baseline (VRTB) of the first contrast injection is to occur based on the contrast signal, and commanding initiation of a second contrast injection at the estimated time.

Disclosed is an X-ray image processing apparatus including a data obtaining unit generating first to N-th images indicating an internal structure of an object and an image processing unit receiving the first to N-th images from the data obtaining unit, detecting a movement of the object, and generating a final image from the first to N-th images based on the movement of the object. The data obtaining unit actively controls an X-ray pulse irradiated based on the movement of the object.

A radiological imaging device that includes a source that emits radiation that passes through at least part of a patient, the radiation defining, a central axis of propagation; and a receiving device that receives the radiation and is arranged on the opposite side of the patient with respect to the source. The receiving device includes a first detector to detect radiation when performing at least one of tomography and fluoroscopy, a second detector to detect radiation when performing at least one of radiography and tomography; and a movement apparatus arranged to displace the first and second detectors with respect to the source. The movement apparatus provides a first active configuration in which the radiation hits the first detector and a second active configuration in which the radiation hits the second detector.

To provide a technique with which dose indices can be managed for body parts in a range to be imaged on a body part-by-body part basis, an X-ray CT apparatus comprises: image producing unit (51) for producing a scout image (10) of a patient; defining unit (52) for defining a range (11) to be imaged in the scout image (10); segmenting unit (53) for segmenting the range (11) to be imaged into two body parts; identifying unit (54) for identifying which one of body parts (12) included in a human body each of the two body parts corresponds to; and calculating unit (55) for calculating a dose index for each of the two body parts.

A radiography control apparatus includes a storage; a communicator that obtains irradiation information from an irradiation apparatus; and a hardware processor that: upon determining that the communicator obtains the irradiation information before a specific timing, executes image processing based on the irradiation information obtained from the communicator; and upon determining that the communicator does not obtain the irradiation information before the specific timing, executes the image processing based on information stored in advance in the storage.

The present disclosure is related to a method for scattering correction of an image. The method may include obtaining an image of a subject and a reference image of air. The method may also include identifying an OOI from the image, the OOI including one or more pixels. For each pixel of the one or more pixels of the OOI, the method may also include determining an equivalent thickness of the OOI corresponding to the each pixel based on a pixel value of the each pixel and the reference image, and determining a scatter correction coefficient of the each pixel based at least in part on the equivalent thickness of the OOI corresponding to the each pixel. The method may further include correcting the pixel value of the each pixel using the corresponding scatter correction coefficient for each pixel of the one or more pixels of the OOI.

A radiation imaging system is provided. The system comprises a radiation imaging apparatus including a plurality of pixels for acquiring radiation image data and a detection unit for performing exposure control during radiation irradiation, and a radiation control apparatus configured to control a radiation source that irradiates radiation to the radiation imaging apparatus. The radiation imaging apparatus and the radiation control apparatus transmit signals that relate to exposure control by wireless communication. The radiation imaging apparatus, in a case where an irradiation stop signal indicating that radiation irradiation has been stopped is not received from the radiation control apparatus after a signal instructing to stop radiation irradiation has been transmitted to the radiation control apparatus and until a first time interval has elapsed, transmits a signal instructing to stop radiation irradiation to the radiation control apparatus again.