Abstract: A reconstruction device according to an embodiment includes a processing circuit. The processing circuit acquires a plurality of pieces of second sinogram data based on a plurality of pieces of first sinogram data, acquires third sinogram data by comparing the pieces of first sinogram data with the pieces of second sinogram data and by selecting pieces of first sinogram data having close similarity, and reconstructs an image on the basis of the third sinogram data.

Abstract: A medical image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain a medical image related to the heart. The processing circuitry is configured to generate a polar map indicating myocardial function information on the basis of the medical image. The processing circuitry is configured to cause a display to display a blood vessel image indicating forms of blood vessels included in the heart so as to be superimposed on the polar map. The processing circuitry is configured to receive an operation to designate at least one of the blood vessels displayed over the polar map. The processing circuitry is configured to identify information associated with the blood vessel designated by the operation. The processing circuitry is configured to cause the display to display the information associated with the blood vessel.

Abstract: According to one embodiment, a medical information processing apparatus includes processing circuitry. The processing circuitry acquires patient information relating to a target patient, environment information relating to an environment for execution, and target data relating to the target patient. processing circuitry determines, from a plurality of trained models differing from each other in processing speed and accuracy, a combination of trained models that satisfies a condition according to the patient information and the environment information.

Abstract: An image processing apparatus according to an embodiment includes a processor. The processor acquires medical image data. The processor estimates the structure of a target organ depicted in the medical image data. The processor determines, for each region of the target organ, the degree of certainty representing the accuracy of the estimation result of the structure of the target organ depicted in the medical image data. The processor causes at least information indicating whether user's editing based on the degree of certainty is necessary or information representing a region where user's editing is restricted to be displayed on a display image based on the medical image data.

Abstract: According to one embodiment, a medical data processing apparatus includes processing circuitry. The processing circuitry determines at least one region of interest for performing processing on a medical image and a degree of importance of the region of interest. The processing circuitry calculates a compression ratio for each of the regions of interest according to the degree of importance.

Abstract: An analysis assisting device according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain first analysis image data obtained on the basis of an image taken of a patient and additional information of the image; to obtain an analysis result of analyzing the first analysis image data; to output, when the analysis result does not satisfy a predetermined condition, an image processing condition optimal for the analysis; either to obtain second analysis image data by generating the second analysis image data by performing an image processing process on the basis of the image processing condition; or to obtain the second analysis image data generated as a result of an external device performing an image processing process on the basis of the image processing condition; and to obtain an analysis result of analyzing the second analysis image data.

Abstract: A medical information processing apparatus according to an embodiment includes processing circuitry. The processing circuitry obtains image data rendering a blood vessel of a patient. The processing circuitry performs a fluid analysis on the obtained image data and calculates an index value related to a blood flow in the blood vessel with respect to each of a plurality of positions in the blood vessel. With respect to the index values to be calculated, the processing circuitry selects a position in which a first value is to be obtained from among the plurality of positions or selects a value serving as the first value from among the index values exhibited in positions. The processing circuitry causes a display to display the first value in a predetermined display region thereof used for displaying the first value.

Abstract: A medical information processing apparatus includes processing circuitry. The processing circuitry is configured to acquire medical image data representing a blood vessel of a subject, extract a blood vessel shape from the medical image data, determine degree of meandering in each of regions from the extracted blood vessel shape, specify a deformed region in which the degree of meandering changes due to insertion of a device into the blood vessel on the basis of the degree of meandering, and output the deformed region in the blood vessel.

Abstract: A medical information processing apparatus according to an embodiment includes processing circuitry. The processing circuitry obtains image data rendering a blood vessel of a patient. The processing circuitry performs a fluid analysis on the obtained image data and calculates an index value related to a blood flow in the blood vessel with respect to each of a plurality of positions in the blood vessel. With respect to the index values to be calculated, the processing circuitry selects a position in which a first value is to be obtained from among the plurality of positions or selects a value serving as the first value from among the index values exhibited in positions. The processing circuitry causes a display to display the first value in a predetermined display region thereof used for displaying the first value.

Abstract: A medical information processing apparatus according to an embodiment includes a memory storing a model that represents a relation between cell deformation and electric signal propagation; and processing circuitry configured to acquire four-dimensional image data acquired by imaging a three-dimensional structure of a cardiac muscle in time series, extract movement information on the cardiac muscle at multiple positions in the four-dimensional image data, and apply the model to the movement information with respect to the positions to calculate electric signal propagation at the positions.

Abstract: A medical image processing apparatus of an embodiment includes a processing circuitry. The processing circuitry extracts a plurality of valve leaflets of a heart valve from image data of a subject. The processing circuitry measures, with respect to at least one valve leaflet of the valve leaflets, a length of a region at which the valve leaflet is in contact with another valve leaflet, in a predetermined reference direction. The processing circuitry controls a display to display a distribution of the length at each of a plurality of positions on the valve leaflet.

Abstract: A medical image processing apparatus according to an embodiment comprises processing circuitry configured to: acquire a position of an interatrial septum and a device reaching position in a medical image indicating the heart of a subject; calculate a puncturing region, in the interatrial septum, enabling a medical device to reach the device reaching position through the interatrial septum on the basis of the position of the interatrial septum and the device reaching position; and present the puncturing region.

Abstract: An X-ray diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to extract a characteristic site in a lumen that may be a constraint during insertion of a surgical device, from medical image data used for determining a path through which the surgical device is to be inserted. On the basis of the characteristic site, the processing circuitry is configured to determine a tip end direction defined in accordance with a curved shape of a tip end part of the surgical device, in each of a plurality of positions on the path. The processing circuitry is configured to output path information including the tip end direction in each of the positions on the path.

Abstract: A medical image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry acquires fractional flow reserve at rest in a coronary artery of a subject, and fractional flow reserve at stress in the coronary artery. The processing circuitry calculates an index value based on comparison between the fractional flow reserve at rest and the fractional flow reserve at stress. The processing circuitry displays the index value as an index for a myocardial function of the subject.

Abstract: A medical image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to acquire a first parameter pertaining to a force at a coronary artery of a subject and a second parameter pertaining to at least one of a shape, character, and fluid resistance related to the coronary artery. The processing circuitry is configured to set, for at least either the first parameter or the second parameter, a weighting factor associated with an anatomical position of the coronary artery. The processing circuitry is configured to calculate, on the basis of the first parameter, the second parameter, and the weighting factor, an index pertaining to a risk on the subject.

Abstract: A medical image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain medical image data related to a coronary artery of a subject. The processing circuitry is configured to derive a value of a blood flow parameter indicating hemodynamics of the coronary artery, on the basis of the medical image data. The processing circuitry is configured to display information indicating a change in the value of the blood flow parameter along the coronary artery, by using a graph of which the vertical axis expresses values of the blood flow parameter and of which the horizontal axis corresponds to the distance direction along the coronary artery and is configured to further display supplementary information indicating the structure of the coronary artery together with the graph.

Abstract: An image processing apparatus comprises processing circuitry configured to: acquire first image data that is representative of a subject at a first time and second image data that is representative of the subject at a second, different time; process the first image data and second image data to obtain a plurality of transformed first data sets and a plurality of transformed second data sets; transform the transformed first data sets and transformed second data sets to obtain respective first distance transforms and second distance transforms; select a combination of at least one of the first distance transforms and at least one of the second distance transforms; generate at least one morphed distance transform based on the combination; and process the at least one morphed distance transform to obtain upsampled image data that is representative of the subject at a third time.

Abstract: An image processing apparatus comprises processing circuitry configured to: acquire first image data that is representative of a subject at a first time and second image data that is representative of the subject at a second, different time; process the first image data and second image data to obtain a plurality of transformed first data sets and a plurality of transformed second data sets; transform the transformed first data sets and transformed second data sets to obtain respective first distance transforms and second distance transforms; select a combination of at least one of the first distance transforms and at least one of the second distance transforms; generate at least one morphed distance transform based on the combination; and process the at least one morphed distance transform to obtain upsampled image data that is representative of the subject at a third time.

Abstract: A medical information processing apparatus according to an embodiment includes processing circuitry. The processing circuitry obtains image data rendering a blood vessel of a patient. The processing circuitry performs a fluid analysis on the obtained image data and calculates an index value related to a blood flow in the blood vessel with respect to each of a plurality of positions in the blood vessel. With respect to the index values to be calculated, the processing circuitry selects a position in which a first value is to be obtained from among the plurality of positions or selects a value serving as the first value from among the index values exhibited in positions. The processing circuitry causes a display to display the first value in a predetermined display region thereof used for displaying the first value.

Abstract: A medical information processing apparatus according to an embodiment includes processing circuitry. The processing circuitry obtains image data rendering a blood vessel of patient. The processing circuitry performs a fluid analysis on the obtained image data and calculates an index value related to a blood flow in the blood vessel with respect to each of a plurality of positions in the blood vessel. With respect to the index values to be calculated, the processing circuitry selects a position in which a first value is to be obtained from among the plurality of positions or selects a value serving as the first value from among the index values exhibited in positions. The processing circuitry causes a display to display the first value in a predetermined display region thereof used for displaying the first value.