Abstract: According to one embodiment, a nuclear medicine diagnostic apparatus includes processing circuitry. The processing circuitry is configured to obtain an X-ray CT image relating to a subject. The processing circuitry is configured to obtain a camera image capturing a position and a shape of the subject corresponding to the X-ray CT image. The processing circuitry is configured to generate an attenuation map based on the camera image and the X-ray CT image. The processing circuitry is configured to obtain detection data based on gamma rays radiating from a radiation source administered into the subject. The processing circuitry is configured to reconstruct an image based on the attenuation map and the detection data.

Abstract: According to one embodiment, a nuclear medical diagnostic apparatus includes processing circuitry. The processing circuitry acquires gamma-ray emission data based on gamma rays emitted from radio isotopes administered to an object. The processing circuitry further executes scattered-ray correction on the gamma-ray emission data based on a second X-ray CT image obtained by replacing pixel values of a non-object region included in a first X-ray CT image with a predetermined pixel value.

Abstract: An image processing system is provided, including an accepting unit, an acquisition unit, a measuring unit, and an output unit. The accepting unit accepts the setting of two coordinates in a stereoscopic image of a subject displayed on a stereoscopic image display device. The acquisition unit acquires volume data coordinates that are coordinates corresponding to stereoscopic image coordinates indicating the accepted coordinates. The measuring unit executes a measuring process of measuring the distance between the two coordinates accepted by the accepting unit, based on the volume data coordinates acquired by the acquisition unit. The output unit outputs a result of measurement by the measuring unit.

Abstract: A nuclear medicine diagnostic apparatus according to an embodiment includes processing circuitry configured to perform control to execute gamma ray acquisition for main imaging for a subject, and prior acquisition to acquire gamma rays in a plurality of acquisition positions in the subject prior to the main imaging, calculate values of gamma ray acquisition time for respective imaging positions in the main imaging, based on count values of gamma rays acquired in the prior acquisition, and perform control to execute the main imaging, based on the calculated values of the gamma ray acquisition time for the respective imaging positions.

Abstract: According to one embodiment, a photon-counting apparatus includes an X-ray tube, an X-ray detector, a support mechanism, setting circuitry and data acquisition circuitry. The X-ray detector is configured to repetitively detect an X-ray photon generated by the X-ray tube, and repetitively generate an electrical signal corresponding to the repetitively detected X-ray photon. The support mechanism is configured to support the X-ray tube to be rotatable about a rotation axis. Setting circuitry configured to set one of a time length of a readout period and a readout cycle per unit time for the electrical signal. Data acquisition circuitry is configured to count a count number of electrical signals from the X-ray detector in accordance with the set one of the time length and readout cycle.

Abstract: An image processing system according to the present embodiment includes a generating unit and a display controlling unit. The generating unit generates a group of different types of parallax image sets that are to three-dimensionally display an object onto the display surface of the displaying unit, from different types of three-dimensional medical image data generated by performing different types of image processing onto imaging data of the object collected by a medical image diagnosis apparatus. The display controlling unit performs control so that display conditions of the group of different types of parallax image sets are switched in accordance with the switching of the viewpoint position around the object displayed on the display surface and that the group of different types of parallax image sets are superimposed and displayed.

Abstract: A medical image diagnosis system according to an embodiment includes a structural image diagnosis apparatus and a nuclear medical image diagnosis apparatus. The system includes a processing circuit that acquires information on a position of a body part of a subject based on a structural image acquired by the structural image diagnosis apparatus and a gantry that scans a nuclear medical image of the subject. The processing circuit controls the gantry based on the information on the position of the body part and a scan condition of the body part.

Abstract: A nuclear medicine diagnostic apparatus according to an embodiment includes processing circuitry configured to perform control to execute gamma ray acquisition for main imaging for a subject, and prior acquisition to acquire gamma rays in a plurality of acquisition positions in the subject prior to the main imaging, calculate values of gamma ray acquisition time for respective imaging positions in the main imaging, based on count values of gamma rays acquired in the prior acquisition, and perform control to execute the main imaging, based on the calculated values of the gamma ray acquisition time for the respective imaging positions.

Abstract: An image processing system according to an embodiment includes a stereoscopic display apparatus, a rendering processor, and a display controller. The stereoscopic display apparatus displays a stereoscopic image enabled for a stereoscopic vision using a plurality of parallax images. The rendering processor generates a plurality of parallax images by applying a rendering process to volume data that is three-dimensional medical image data from a plurality of viewpoint positions having different relative positions with respect to the volume data. The display controller causes the stereoscopic display apparatus to display a graphic image that is an image of a given graphic indicating a depth-direction position of a cursor that is operable by a given input unit in a three-dimensional stereoscopic image space in which a stereoscopic image is displayed, together with the parallax images.

Abstract: An diagnostic imaging apparatus including: a correction table; a top panel height calculation unit configured to calculate a height of the top panel corresponding to the distance between the fulcrum of the top panel and the imaging position, from an image captured by continuous imaging of the subject; an imaging position estimation unit configured to estimate an imaging position of an image captured by a different imaging method from a method for the captured image based on the height of the top panel calculated by the top panel height calculation unit, the distance between the fulcrum of the top panel corresponding to the height and the imaging position, and the correction table; and an image correction unit configured to align the imaging position of the image captured by the different imaging method with the imaging position of the image captured by the continuous imaging.

Abstract: According to the present embodiment, an image diagnosis apparatus includes a first image taking device that takes an image of a patient placed on a couchtop by using an X-ray emission; a second image taking device that takes images in positions by moving an image taking position of the patient by a predetermined distance at a time, along the body-axis direction; a position estimating unit; and a correction processing unit. The position estimating unit estimates a couchtop position for each of the image taking positions of the second image taking device, based on information about warping of the couchtop of the first image taking device. The correction processing unit uses information about the couchtop positions estimated by the position estimating unit, for performing a position correcting process on the images obtained by the image taking devices.

Abstract: According to an embodiment, in a medical image diagnostic apparatus, an accepting unit accepts input of conditions with respect to regions to be photographed and arrangement of the regions. An extracting unit extracts an area of interest of each subject by analyzing medical image data photographed based on the conditions accepted by the accepting unit. Based on the conditions and on the area of interest extracted by the extracting unit, a setting unit sets display conditions of a parallax image group to be displayed on a display unit having a stereoscopic viewing function.

Abstract: According to one embodiment, a nuclear medical diagnostic apparatus includes processing circuitry. The processing circuitry acquires gamma-ray emission data based on gamma rays emitted from radio isotopes administered to an object. The processing circuitry further executes scattered-ray correction on the gamma-ray emission data based on a second X-ray CT image obtained by replacing pixel values of a non-object region included in a first X-ray CT image with a predetermined pixel value.

Abstract: According to one embodiment, an X-ray CT apparatus includes an energy classifying unit, a setting unit, and an image generating unit. The energy classifying unit is configured to classify photons passing through an object into a number of energy bins in accordance with energy of the photons. The setting unit is configured to set an energy level and set an energy width of a plurality of energy bins of the number of energy bins. The image generating unit is configured to generate an extended energy bin image based on information on the photons classified into the plurality of energy bins, the image having the energy level and the energy width of the plurality of energy bins.

Abstract: According to one embodiment, a photon-counting apparatus includes an X-ray tube, an X-ray detector, a support mechanism, setting circuitry and data acquisition circuitry. The X-ray detector is configured to repetitively detect an X-ray photon generated by the X-ray tube, and repetitively generate an electrical signal corresponding to the repetitively detected X-ray photon. The support mechanism is configured to support the X-ray tube to be rotatable about a rotation axis. Setting circuitry configured to set one of a time length of a readout period and a readout cycle per unit time for the electrical signal. Data acquisition circuitry is configured to count a count number of electrical signals from the X-ray detector in accordance with the set one of the time length and readout cycle.

Abstract: A positron emission computed tomography apparatus according to an embodiment includes a detector, a coincidence counting information generating unit, and a body movement detecting unit. The detector detects annihilation radiation released from a subject. The coincidence counting information generating unit searches for sets of counting information, which counted a pair of annihilation radiations at substantially the same time, from a counting information list that is generated from output signals of the detector; generates a set of coincidence counting information for each retrieved set of counting information; and generates a time series list of coincidence counting information. Based on the time series list of coincidence counting information, the body movement detecting unit detects temporal changes in the body movement of the subject.

Abstract: An image diagnosis device comprising: a positioning image collection unit configured to collect a positioning image for an object; a weight distribution estimation unit configured to estimate a weight distribution of the object from the collected positioning image; a top board sagging amount estimation unit configured to estimate an amount of sagging of a top board on which the object is placed, from the estimated weight distribution; and an alignment adjustment unit configured to perform alignment for each captured image of the object, based on the estimated amount of sagging of the top board.

Abstract: According to one embodiment, an apparatus includes a reconstructing unit, a first control unit, a detecting unit, a generating unit, and a second control unit. The first control unit controls the reconstructing unit to reconstruct first images based on projection data collected in first periods. The detecting unit detects second periods which belong to pulsation cycles different from one another and in which an organ to be imaged is in the substantially same form, based on the first images. The generating unit generates data for reconstruction including projection data for the required angle range by combining projection data collected in third periods close to the second periods. The second control unit controls the reconstructing unit to reconstruct a second image based the data for reconstruction.

Abstract: An diagnostic imaging apparatus including: a correction table; a top panel height calculation unit configured to calculate a height of the top panel corresponding to the distance between the fulcrum of the top panel and the imaging position, from an image captured by continuous imaging of the subject; an imaging position estimation unit configured to estimate an imaging position of an image captured by a different imaging method from a method for the captured image based on the height of the top panel calculated by the top panel height calculation unit, the distance between the fulcrum of the top panel corresponding to the height and the imaging position, and the correction table; and an image correction unit configured to align the imaging position of the image captured by the different imaging method with the imaging position of the image captured by the continuous imaging.

Abstract: An image diagnosis device comprising: a positioning image collection unit configured to collect a positioning image for an object; a weight distribution estimation unit configured to estimate a weight distribution of the object from the collected positioning image; a top board sagging amount estimation unit configured to estimate an amount of sagging of a top board on which the object is placed, from the estimated weight distribution; and an alignment adjustment unit configured to perform alignment for each captured image of the object, based on the estimated amount of sagging of the top board.