Abstract: According to an embodiment, an image processing system includes 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: According to one embodiment, an image processing system includes a stereoscopic display device and an image processing apparatus. The stereoscopic display device is configured to enable a stereoscopic image constituted by using a predetermined parallax number of parallax images to be stereoscopically viewed. The image processing apparatus comprises a rendering processor configured to apply rendering processing to volume data serving as three-dimensional medical image data, a rendering processing controller configured to control the rendering processor so as to generate from the volume data a parallax image group composed of the predetermined parallax number or more of parallax images, and a storage controller configured to store in a memory the parallax image group generated by the rendering processor.

Abstract: In an image processing system according to an embodiment, an image processing device in the embodiment includes a receiving unit, a flat image generator, and an output unit. The receiving unit receives setting of a region of interest on parallax images of a subject that are displayed stereoscopically. The flat image generator generates a flat image of a cut surface of the subject that is generated by cutting the subject along a plane corresponding to the region of interest received by the receiving unit based on volume data of the subject stored in a predetermined storage device. The output unit outputs the flat image generated by the flat image generator.

Abstract: An image processing system according to an embodiment includes a first image creating unit, a second image creating unit, and a display controller. The first image creating unit creates a first image by performing a rendering processing on volume data which is three-dimensional medical image data. The second image creating unit creates a second image having a different stereoscopic effect from the first image by performing the rendering processing on the volume data. The display controller that controls to display the first image and the second image in a designated region that is designated in a display surface of a display unit and a background region other than the designated region, respectively.

Abstract: An X-ray CT apparatus has an irradiation unit, a determination unit, and a displaying unit. The irradiation unit is configured to emit an X-ray. The determination unit determines a tube current value modulation to extend to a body axis direction in a predetermined rotation angle of the irradiation unit based on an index value to show a dispersion of CT values in a required area in a reconstructed image, and a scan condition. The displaying unit displays an image of the index value and an image of the tube current value modulation on an image used for positioning and aligns the image along the body axis direction on the image used for positioning.

Abstract: In an X-ray CT scanner having an X-ray tube which applies an X-ray spreading in a body axis direction of a subject, and an X-ray detector having a wide imaging range which detects the X-ray passed through the subject and converts the detected X-ray into an electric signal, a desired image creation time is set by use of a specific CT value curve in a console input unit before scanning with the X-ray. After the scanning, data of the CT value change curve is generated based on the obtained projection data. An image creation range in the generated change curve is determined based on an image creation range set in the console input unit, and the image creation is performed in the image creation unit based on the determined image creation time.

Abstract: An X-ray CT apparatus detects a predetermined characteristic wave from each electrocardiographic waveform acquired from an electrocardiograph, predicts intervals with which the characteristic wave appears based on appearance times of the detected predetermined characteristic wave in each electrocardiographic waveform, and determines an X-ray irradiation start time based on the predicted interval time. After an instruction to start collection of X-ray intensity distribution data is received, if an appearance interval of a detected predetermined characteristic wave is within an acceptable normal-heartbeat range, it is determined as a normal heartbeat. If the appearance interval of the detected predetermined characteristic wave is outside the acceptable normal-heartbeat range, it is determined as an abnormal heartbeat.

Abstract: An X-ray computed tomographic apparatus comprises a scanner to scan in a three-dimensional region of a subject by X-rays, a storing unit to store projection data acquired by the scanning, a reconstruction processing unit to generate volume data which corresponds to a three-dimensional region, based on the stored projection data, an MPR processing unit to generate slice image data relating to three-direction slice planes from the volume data, a displaying unit to display the slice image data together with a graphic element representing a reconstruction range, an operating unit to operate the graphic element, and a reconstruction processing unit to reconstruct tomographic image data which corresponds to the reconstruction range represented by the graphic element, based on the stored projection data.

Abstract: In an X-ray CT scanner having an X-ray tube which applies an X-ray spreading in a body axis direction of a subject, and an X-ray detector having a wide imaging range which detects the X-ray passed through the subject and converts the detected X-ray into an electric signal, a desired image creation time is set by use of a specific CT value curve in a console input unit before scanning with the X-ray. After the scanning, data of the CT value change curve is generated based on the obtained projection data. An image creation range in the generated change curve is determined based on an image creation range set in the console input unit, and the image creation is performed in the image creation unit based on the determined image creation time.

Abstract: An X-ray CT apparatus has an irradiate unit, a determination unit, and a displaying unit. The irradiate unit irradiates an X-ray. The determination unit determinates a tube current value modulation to extend to a body axis direction in a predetermined rotation angle of the irradiate unit based on an index value to show a dispersion of CT values in required area in a reconstructed image, and a scan condition. The displaying unit aligns and displays an image of the index value and an image of the tube current value modulation on an image used for positioning.

Abstract: An X-ray CT apparatus detects a predetermined characteristic wave from each electrocardiographic waveform acquired from an electrocardiograph, predicts intervals with which the characteristic wave appears based on appearance times of the detected predetermined characteristic wave in each electrocardiographic waveform, and determines an X-ray irradiation start time based on the predicted interval time. After an instruction to start collection of X-ray intensity distribution data is received, if an appearance interval of a detected predetermined characteristic wave is within an acceptable normal-heartbeat range, it is determined as a normal heartbeat. If the appearance interval of the detected predetermined characteristic wave is outside the acceptable normal-heartbeat range, it is determined as an abnormal heartbeat.

Abstract: An X-ray computed tomographic apparatus comprises a scanner to scan in a three-dimensional region of a subject by X-rays, a storing unit to store projection data acquired by the scanning, a reconstruction processing unit to generate volume data which corresponds to a three-dimensional region, based on the stored projection data, an MPR processing unit to generate slice image data relating to three-direction slice planes from the volume data, a displaying unit to display the slice image data together with a graphic element representing a reconstruction range, an operating unit to operate the graphic element, and a reconstruction processing unit to reconstruct tomographic image data which corresponds to the reconstruction range represented by the graphic element, based on the stored projection data.