Abstract: A dynamic image analysis apparatus including a hardware processor that: obtains a chest dynamic image obtained by dynamic radiographing through radiation; extracts a lung field region from the dynamic image; calculates a feature amount about a blood flow rate, based on the lung field region; and limits a value of the calculated feature amount about the blood flow rate.

Abstract: A dynamic image processing system including a hardware processor that extracts a heart region from a chest dynamic image which is obtained by radiation imaging of a dynamic state at a chest, extracts a density waveform for each pixel in the extracted heart region, determines an extraction target candidate region of blood flow information based on the extracted density waveform for each pixel, and sets an extraction target region of the blood flow information in the determined extraction target candidate region of the blood flow information.

Abstract: A dynamic state imaging system includes a hardware processor that acquires period information on a period of a subject's dynamic state having periodicity, and controls a radiation imaging apparatus to acquire dynamic state images of a plurality of periods by assigning a same phase as an imaging start timing for each period of the subject's dynamic state, based on the period information, and performing imaging at predetermined time intervals from the imaging start timing for each period.

Abstract: A dynamic image processing apparatus includes: a hardware processor that: extracts a lung-field region from at least one of a plurality of frame images of a chest dynamic image obtained by radiographing a dynamic state of a chest of an examinee; sets a feature point in a position that moves according to a movement of a lung field due to respiration in the lung-field region extracted by the hardware processor; searches a frame image other than a frame image in which the feature point has been set for a corresponding point that corresponds to the feature point set by the hardware processor, and estimates a correspondence relationship of each pixel in the lung-field region among the plurality of frame images in accordance with a positional relationship between the feature point set by the hardware processor and the corresponding point searched for by the hardware processor.

Abstract: A dynamic analysis apparatus includes: an obtainment unit configured to set a region of interest in dynamic images obtained by photographing a dynamic state by irradiation of a check target part with radial rays, and obtain movement information on movement of the region of interest; a determination unit configured to determine an emphasis level of a pixel signal value of an attentional pixel corresponding to a pixel in the region of interest on the basis of the movement information of the region of interest obtained by the obtainment unit; and a correction unit configured to correct the pixel signal value of the attentional pixel of the dynamic images or analysis result images generated by analyzing the dynamic images, on the basis of the emphasis level determined by the determination unit.

Abstract: A dynamic analysis system includes a diagnostic console which calculates at least one index value representing variation in a target portion of a human body from at least one dynamic image acquired by performing radiographic imaging to a subject containing the target portion, and evaluates flexibility of the target portion based on the calculated index value.

Abstract: A dynamic analysis system includes a diagnostic console which calculates at least one index value representing variation in a target portion of a human body from at least one dynamic image acquired by performing radiographic imaging to a subject containing the target portion, and evaluates flexibility of the target portion based on the calculated index value.

Abstract: There is provided a radiation imaging system including a radiation emitting apparatus 3 having a radiation source 34 that generates radiation, a radiation imaging apparatus 100B that receives radiation and generates radiation image data, and a hardware processor. The hardware processor detects height of the radiation source 34 and height of the radiation imaging apparatus 100B. The hardware processor further calculates a distance from a focal point of the radiation generated by the radiation source 34 to the radiation imaging apparatus 100B based on the height of the radiation source 34 and the height of the radiation imaging apparatus 100B, and causes a display to display the calculated distance.

Abstract: A dynamic analysis system includes a hardware processor. The hardware processor: analyzes a dynamic image for a dynamic state of a living body; generates an analysis result image showing the analysis result; determines, for each pixel of the dynamic image or the analysis result image, whether a pixel value is within a predetermined range of values; classifies the pixels into groups according to the determination result; extracts, as each border pixel, a pixel in a group adjacent to a pixel classified into a different group; generates a border between the groups based on the extracted border pixels; superimposes the border on, between the dynamic image and the analysis result image, an image not subjected to the classification, thereby generating a combined image; and causes an output device to output the combined image.

Abstract: An imaging support apparatus supports imaging by an imaging apparatus which radiographically images a dynamic state in a target site with a cyclic nature to obtain a dynamic image. The imaging support apparatus includes the following. Alive body information obtainer obtains live body information of an examined subject from a point before starting actual imaging with the imaging apparatus. A hardware processor evaluates stability for a cycle of the dynamic state in the target site based on the live body information obtained by the live body information obtainer.

Abstract: A dynamic state imaging system includes a hardware processor that acquires period information on a period of a subject's dynamic state having periodicity, and controls a radiation imaging apparatus to acquire dynamic state images of a plurality of periods by assigning a same phase as an imaging start timing for each period of the subject's dynamic state, based on the period information, and performing imaging at predetermined time intervals from the imaging start timing for each period.

Abstract: A dynamic analysis device includes a processor. The processor performs filtering on a dynamic image in a feature quantity space formed of two or more axes with feature quantities of the respective axes. The dynamic image is obtained by dynamic imaging performed by emitting radiation to an examination target site. Further, the processor calculates a feature quantity relating to a dynamic state of the examination target site based on the filtered dynamic image.

Abstract: A dynamic diagnosis support information generation system includes: a radiation generator capable of irradiating a pulsed radiation; a radiation detector which is provided with a plurality of detecting elements arranged in two-dimension, detects the pulsed radiation irradiated from the radiation generator at each of the plurality of detecting elements and generates frame images successively; and an analysis section which calculates and outputs a feature value relating to a dynamic image of a subject based on a plurality of frame images generated by radiographing the subject by using the radiation generator and the radiation detector, wherein the analysis section calculates the feature value relating to the dynamic image of the subject by corresponding pixels to each others representing outputs of a detecting element at a same position in the radiation detector among the plurality of the frame images.

Abstract: A dynamic image processing apparatus includes: a hardware processor that: extracts a lung-field region from at least one of a plurality of frame images of a chest dynamic image obtained by radiographing a dynamic state of a chest of an examinee; sets a feature point in a position that moves according to a movement of a lung field due to respiration in the lung-field region extracted by the hardware processor; searches a frame image other than a frame image in which the feature point has been set for a corresponding point that corresponds to the feature point set by the hardware processor, and estimates a correspondence relationship of each pixel in the lung-field region among the plurality of frame images in accordance with a positional relationship between the feature point set by the hardware processor and the corresponding point searched for by the hardware processor.

Abstract: A dynamic analysis apparatus may include a setting section which sets a target region in a lung region of a chest dynamic image; a conversion section which calculates a representative value of a pixel signal value in the target region, and converts the pixel signal value; an extraction section which extracts a pulmonary blood flow signal from the image; and a calculation section which calculates a change in the pulmonary blood flow signal, and calculates a feature amount regarding pulmonary blood flow. The setting section may determine a size of the target region based on a size of a body part other than a lung blood vessel, a movement amount of a body part other than the lung blood vessel or subject information of the chest dynamic image, the subject information regarding a subject of the radiation imaging, and the setting section may set the target region.

Abstract: A dynamic analysis system includes a hardware processor. The hardware processor: analyzes a dynamic image for a dynamic state of a living body; generates an analysis result image showing the analysis result; determines, for each pixel of the dynamic image or the analysis result image, whether a pixel value is within a predetermined range of values; classifies the pixels into groups according to the determination result; extracts, as each border pixel, a pixel in a group adjacent to a pixel classified into a different group; generates a border between the groups based on the extracted border pixels; superimposes the border on, between the dynamic image and the analysis result image, an image not subjected to the classification, thereby generating a combined image; and causes an output device to output the combined image.

Abstract: A dynamic image processing system including a hardware processor that extracts a heart region from a chest dynamic image which is obtained by radiation imaging of a dynamic state at a chest, extracts a density waveform for each pixel in the extracted heart region, determines an extraction target candidate region of blood flow information based on the extracted density waveform for each pixel, and sets an extraction target region of the blood flow information in the determined extraction target candidate region of the blood flow information.

Abstract: A dynamic analysis apparatus may include a setting section which sets a target region in a lung region of a chest dynamic image; a conversion section which calculates a representative value of a pixel signal value in the target region, and converts the pixel signal value; an extraction section which extracts a pulmonary blood flow signal from the image; and a calculation section which calculates a change in the pulmonary blood flow signal, and calculates a feature amount regarding pulmonary blood flow. The setting section may determine a size of the target region based on a size of a body part other than a lung blood vessel, a movement amount of a body part other than the lung blood vessel or subject information of the chest dynamic image, the subject information regarding a subject of the radiation imaging, and the setting section may set the target region.

Abstract: An image processing apparatus of the present invention includes an image analysis unit that performs image analysis processing on a plurality of frame images constituting a base dynamic image to obtain an overall analysis value, a statistical analysis unit that performs statistical analysis processing on a diagnostic region using the overall analysis value to obtain a first analysis value, a reference statistical value generating unit that outputs a reference statistical value, and a display unit that displays the first analysis value and the reference statistical value together.

Abstract: A dynamic analysis apparatus may include a setting section which sets a target region in a lung region of a chest dynamic image; a conversion section which calculates a representative value of a pixel signal value in the target region, and converts the pixel signal value; an extraction section which extracts a pulmonary blood flow signal from the image; and a calculation section which calculates a change in the pulmonary blood flow signal, and calculates a feature amount regarding pulmonary blood flow. The setting section may determine a size of the target region based on a size of a body part other than a lung blood vessel, a movement amount of a body part other than the lung blood vessel or subject information of the chest dynamic image, the subject information regarding a subject of the radiation imaging, and the setting section may set the target region.