Hitachi Medical Corporation

Hitachi, Ltd.

Fujifilm Healthcare Corporation

Takayuki Kadomura

Taiga Goto

Takashi Shirahata

Hiroto Kokubun

Koichi Hirokawa

Tetsuo Nakazawa

Hirohisa Izumo

Shino Tanaka

Sunao Ishii

Atsushi Inoue

Yoshihiro Goto

Osamu Miyazaki

Kentaro Takahashi

Hiromitsu Hayashi

Hiroaki Ninomiya

Hideki Imaizumi

To reduce time required for establishing diagnosis of a lesion candidate, a diagnostic imaging support system including a medical image shooting device for shooting an image of a subject and a medical image processing device for processing the medical image, the system including: a projection data acquisition part for acquiring projection data of the subject; a reconstruction part for reconstructing the medical image based on the projection data; an acquisition part for acquiring lesion candidate data which is data on lesion candidates detected from the medical image; a reconstruction condition decision part for deciding, on the basis of the lesion candidate data, a reconstruction condition for a magnified reconstruction image which includes the lesion candidates and is more magnified than the medical image; a magnification reconstruction part for reconstructing the magnified reconstruction image by using the reconstruction condition; and a display part for displaying the magnified reconstruction image.

Medical diagnostic imaging support system, medical image processing device, and medical image processing method

An X-ray CT apparatusstores an image quality improvement tableindicating levels of image quality improvement effects for a plurality of image quality improvement processes in a storage device. In a case where imaging is performed while modulating an X-ray irradiation amount on the basis of predetermined dose modulation data, an image processing deviceacquires a reference dose used as a reference of image quality, and acquires an irradiation X-ray dose during imaging for image reconstruction target projection data from the dose modulation data. The image processing devicedetermines an image quality improvement process for obtaining image quality used as a reference by referring to the image quality improvement tableon the basis of a ratio between the dose values, and performs the determined image quality improvement process on the reconstruction target projection data.

X-ray CT apparatus, image processing device, and image reconstruction method

To retrieve a desired image from plural types of successive images arranged based on various physical quantities, a cuboid object that is an assembly of multiple unit cells is displayed on a display device, a successive image group is arranged according to the physical quantities of the three axes of the cuboid object that are respectively the body-axis direction position, the first time phase intervals, and the second time phase intervals narrower than the first time phase intervals, and the respective images included in the successive image group and the respective unit cells are associated on one-to-one basis and stored in a main memory. When a three-dimensional position in the cuboid object is input by a mouse operation etc., the CPU retrieves one or multiple images associated with one or multiple unit cells determined according to the input three-dimensional position from the main memory and displays the images in an image display region.

Medical image display apparatus and medical image display method

In order to provide a medical image diagnosis apparatus and a phase determination method using a medical image diagnosis apparatus that can determine an appropriate movement phase when obtaining a tomographic image corresponding to a specific movement phase, there are provided a storage unit that stores material distribution information, which is acquired from an object including a target organ that moves periodically, and movement information, which is measured together with the material distribution information, an image reconstruction unit that reconstructs a plurality of tomographic images of different movement phases using the material distribution information and the movement information, a superimposed image creation unit that creates a superimposed image by superimposing the plurality of tomographic images, a specific position calculation unit that calculates a specific position of the target organ based on the superimposed image, and a specific phase determination unit that determines a specific phase of the target organ based on the specific position.

Medical image diagnosis apparatus and phase determination method using medical image diagnosis apparatus

There is provided an X-ray CT apparatus capable of correcting the unevenness of the contrast concentration due to discontinuities in time between slices in contrast imaging using a Prospective Triggering method. In an X-ray CT apparatus, projection data in a specific phase of the heart is obtained by performing a scan by emitting X-rays after a predetermined time from the detection of the R wave of electrocardiogram information at each position of the heart in the body axis direction. An image processing devicereconstructs a tomographic image on the basis of collected projection data, calculates the projection data collection time in each scan from electrocardiogram information collected from an electrocardiograph, calculates the time between scans on the basis of the calculated projection data collection time, and corrects a concentration difference so as to change smoothly for an image of a position in the body axis direction in a range according to the time between scans.

X-ray CT apparatus and image correction method

There is provided an X-ray CT apparatus that allows easy and correct confirmation of which position a bed can be moved to and which region can be imaged. The X-ray CT apparatus performs imaging for obtaining a scanogram(S), displays the scanogram(S), and calculates a transversely movable region(S). Further, the X-ray CT apparatus inputs size of a bow tie filter(S), inputs a transverse movement destination of a bed(S), calculates an imageable region on the basis of the size of the bow tie filter and the transverse movement destination(S), and displays the imageable region(S).

X-ray CT apparatus

In a medical image display device for displaying a hollow organ of an examinee as a panoramic image, an operator is enabled to easily determine whether display of an observation site on the panoramic image is correct or not. The medical image display device having panoramic image creating means configured to create a panoramic image of a hollow organ of an examinee and display means configured to display the panoramic image includes false image probability calculating means configured to calculate a false image probability of a position in the panoramic image in accordance with the position concerned, and control means configured to display the false image probability in association with the panoramic image. Furthermore, the medical image display device having panoramic image creating means configured to create a panoramic image of a hollow organ of an examinee and display means configured to display the panoramic image includes false image probability calculating means configured to calculate a false image probability of a position in the panoramic image in accordance with the position concerned, and control means configured to display the panoramic image on the basis of the false image probability.

Medical image display device and method of medical image display

There is provided a medical image processing device and a medical image processing method that can extract and display lesion candidate regions having different sizes and similarity forms at a time through a series of processing. Therefore, with respect to a first medical image, a first evaluation for the curved surface form of the first medical image is made to extract first lesion candidate regions. With respect to each of the first lesion candidate regions extracted by a first extracting unit, a second evaluation for the curved surface form thereof is made to extract a second lesion candidate region. The second lesion candidate region extracted by a second extracting unit is superimposed and displayed on a second medical image.

Medical image processing device and medical image processing method

A medical image processing device is configured to set a parameter to be used for detecting a lesion candidate region. For example, the medical image processing device is configured to input a first parameter Pestimating a dimension of the lesion, calculate a second parameter Pbased on the first parameter Pcalculate a feature amount indicating a shape of an organ surface by using the second parameter in the medical image, and extract the lesion candidate region based on the calculated feature amount.

Image processing device and method for processing image to detect lesion candidate region

There is provided a medical image processing device that enables high-precision identification of the type of a biomedical tissue and display of an identification degree with respect to medical image information in multi-energy imaging. The medical image processing device acquires tissue information (statistic amount information such as average CT value, standard deviation of CT values, etc., display color, etc.) of a biomedical tissue every energy intensity of the multi-energy imaging. The medical image processing device creates an identification map for identifying the type of the biomedical tissue on the basis of the statistic amount information, and further creates an identification probability map for determining the identification degree of the biomedical tissue on the basis of the statistic amount information and the identification map. The medical image processing device acquires imaging information based on the multi-energy imaging, identifies the type of the biomedical tissue on the basis of the identification map, determines the identification degree on the basis of the identification probability map and displays in accordance with the identification.

Medical image processing device, method for processing medical image and program

An image display apparatus according to the invention comprises reading section () which reads in an image data set of a subject acquired by a medical imaging apparatus () from a data recording device () which stores the image data set; input sections () which input a desired object organ to the read-in image data set; object organ extracting section () which extracts the inputted object organ; reference position setting section () which sets a reference position for producing an unfolded image in the circumferential direction of the bore of the extracted object organ; calculating device () which calculates pixel information in the circumferential direction of the bore of the object organ from the set reference position; and image display section () which displays the calculated pixel information in the circumferential direction of the bore of the object organ.

Image display apparatus and program

Provided is an X-ray CT apparatus which can perform CT scan of multi-energy scanning at a high speed and can obtain an image having an excellent substance distinguishing ability. The X-ray CT apparatus includes: means to continuously perform a first CT scanning using a first X-ray energy and a second CT scanning using a second X-ray energy without interrupting CT scan; means to transit the X-ray energy emitted from the X-ray during a transition period TR including an end of the first CT scanning and a beginning of the second CT scanning from the first X-ray energy to the second X-ray energy; and means to compensate the scan data in the transition period by the opposing data in the residual scan period so as to reconstruct an image.

An X-ray CT apparatus comprising: a scanner unit for rotating one or more X-ray sources for applying X-ray beams having different energy spectra to an object, and detectors disposed opposed to the X-ray sources for detecting transmitted X-ray data on the object, around the object while applying X-rays, reconstructing means for reconstructing a tomogram of the object by acquiring transmitted X-ray data on the object including the two or more different energy spectra by using the scanner, and display means for displaying the reconstructed tomogram; the X-ray CT apparatus further comprising input means for inputting information on an identification tissue of the object to be identified and a separate tissue to be separated from the identification tissue from the tomogram and scanning condition determining means for determining the scanning condition for identifying the identification tissue from the tomogram. With this, an optimum scanning condition of a multi-energy X-ray CT apparatus can be determined.

An image diagnosis supporting system comprising a means for reading in image data representative of the image of a subject acquired by a medical imaging apparatus, a means for detecting an abnormal shadow candidate satisfying at least one of a plurality of criteria for abnormal shadow criteria from the image thus read in, and a means for displaying the image thus read in and a marker indicative of the abnormal shadow candidate thus detected in a superimposed state. The image diagnosis supporting system is further provided with a means for setting criteria supporting judgment of the abnormal shadow candidate detected by the abnormal shadow candidate detecting means as judgment supporting criteria, and a control means for displaying the judgment supporting criteria thus set, the abnormal shadow candidate and the marker simultaneously on the display means. Accordingly, it is possible to support the user in accurately judging the type of an abnormal shadow candidate.

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Tokyo, Japan

Takayuki Kadomura