The invention provides, in some aspects, a system for implementing a rule derived basis to display volumetric image sets. In various embodiments of the invention, the selection of the images to be displayed, the generation of the 3-D volumetric image from measured 2-D images including the rendering parameters and styles, the choice of viewing directions and 2-D projection images based on the viewing directions, the layout of the projection images, and the formation of a video can be determined using a rule derived basis. In an embodiment of the present invention, the user is presented with sequential images making up a video displayed based on their preferences without having to first manually adjust parameters. The present invention allows for novel ways of viewing such images to detect microcalcifications and obstructions when reviewing Digital Breast Tomosynthesis and other volumetric mammography images.

A super-resolution digital tomosynthesis system for imaging an object including a source configured to emit penetrating particles toward an object; a detector configured to acquire a series of projection images of the object in response to the penetrating particles from the source; positioning apparatus configured to position the source and the detector; and an imaging system coupled to the source, the detector, and the positioning apparatus. The imaging system is configured to control the positioning apparatus to position the source in relation to the detector along a scan path and to change a distance between the source and the detector, control the source and the detector to acquire the series of projection images along the scan path with the distance change between the source and detector, and construct a tomographic volume exhibiting super-resolution from data representing the acquired series of projection images.

The invention relates to a method (62, 64) for creating x-ray images as well as to an x-ray system. During the creation of an x-ray image, a slit diaphragm (16) is moved in front of an object (24) to be x-rayed, along a path extending between a radiation source (10) and said object (24), in order for the object (24) to be scanned. X-rays emitted by the radiation source (10) are detected by a detector (20) upon penetration of the slit diaphragm (16) and the object (24) to be x-rayed. In order to create an x-ray image using a simplified slot scanning technique, the x-ray image is created without the need for a second slit diaphragm (16) between the object (24) to be x-rayed and the detector (20), and only the radiation of which the intensity (60), detected by the detector (20) during the scan, exceeds a predefined threshold value is processed.

Aspects of the present disclosure relate to internal and external scanning. In some embodiments, the method includes receiving a first set of data from an ingestible scanning device inside a body, identifying a first point of interest within the body based on the data, determining a location of a first point of interest within the body, and scanning the point of interest with an external scanning device.

A computed tomography method seeking higher resolutions without imposing a dose increase is described A mask (10) forms a plurality of X-ray beam lets (14) which are passed through a subject (6), and images are captured on X-ray detector (8). The subject (6) is moved with respect to the X-ray detector and mask, including a rotation around a y axis, and a computed tomography image is reconstructed from the plurality of measured datapoints. The beam lets (14) are of small size. FIGS. 4-8 are blurred, FIGS. 10, 11 and 16b contain too small letters/numbers.

A method includes positioning a patient at a first orientation relative to a radiation source. The method further includes using a 3D imaging technique to measure one or more positions of the patient's chest. The method further includes, while using the 3D imaging technique to measure the one or more positions of the patient's chest: generating a model of the patient's chest using the one or more positions of the patient's chest; updating the model of the patient's chest as the patient breathes; and exposing the patient to a dose of radiation using the radiation source, wherein the dose is based on the model of the patient's chest.

A nuclear medicine (NM) multi-head imaging system is provided that includes a gantry, detector units, and at least one processor. The gantry defines a bore. The detector units are mounted to the gantry and configured to rotate as a group with the gantry around the bore in rotational steps, with each detector unit configured to sweep about a corresponding axis and acquire imaging information while sweeping about the corresponding axis. The at least one processor is coupled to the detector units and configured to determine a region of interest (ROI) of the object to be imaged; determine a sweeping configuration based on the size of the ROI; determine a rotational movement configuration for the gantry using the determined sweeping configuration; and control the gantry and the set of detector units to utilize the determined rotational movement and sweeping configurations during acquisition of imaging information.

A pre-imaging control unit of a mammography apparatus selects one pre-imaging focus from plural focuses of a radiation source according to selection conditions which are preset in order to prevent the concentration of load on one of the focuses. Pre-imaging for setting the irradiation conditions of radiation in tomosynthesis imaging is performed using the selected pre-imaging focus. For example, the selection conditions indicate that the pre-imaging focus is changed in each pre-imaging operation and the focus of a radiation tube adjacent to the radiation tube whose focus has been used in the previous pre-imaging is selected as the pre-imaging focus.

An X-ray CT apparatus according to an embodiment includes: an X-ray generator configured to generate X-rays; an X-ray detector configured to detect X-rays that have passed through a patient and including first to n-th groups of detecting elements configured to store therein electric charges generated from the detection (where n is an integer of 2 or larger); a Data Acquisition System (DAS) configured to acquire detection data for each view, by repeatedly performing a process of sequentially reading the electric charges stored in the first to the n-th groups of detecting elements in units of groups, starting with the first group of detecting elements; and processing circuitry configured to periodically change energy of X-rays radiated onto the patient and to also control the X-ray generator so that, while the detection data related to one view or a plurality of consecutive views is acquired, an average energy level of the X-rays radiated onto the patient is substantially equal among the groups of detecting elements.

The invention relates to off-center detector X-ray tomography reconstruction of an image of an object on the basis of projection data acquired during a rotation of an X-ray source and the off-center detector around the object in two rotational passes of less than 360°, wherein a focus point of the X-ray beam travels along largely overlapping arcs (401, 402) in the two rotational passes, the off-center detector being positioned asymmetrically with respect to a central of the X-ray beam and a direction of a detector offset being reversed between the passes. According to the invention, redundancy weighting of the projection data with respect to a redundant acquisition of projection values during each of the rotational passes is made using a redundancy weighting function determined on the basis of a union of the arcs (401, 402).