Hitachi Medical Corporation

Hitachi, Ltd.

Fujifilm Corporation

Takehiro Tsujita

Tetsuya Hayashi

Tomofumi Nishiura

Yoko Horie

Maki Kuwayama

Kenta Inoue

A mark that identifies a lesion site is displayed on a tomographic image. A two-dimensional map and a graph are displayed regardless of whether or not the mark is displayed. The two-dimensional map represents lesion site probability distribution. The graph represents temporal change of lesion site probabilities.

Ultrasound diagnostic apparatus and ultrasound image processing method

An ultrasonic diagnostic device and ultrasonic three-dimensional image generation method generate a three-dimensional image by expressing interaction by dispersion, absorption, or the like of light in tissue or between tissues. The ultrasonic diagnostic device displays a three-dimensional image of a target object based on at least one piece of volume data among luminance volume data, blood flow volume data, and elasticity volume data. The ultrasonic diagnostic device includes: a light source setting unit to set light source data indicating characteristics of a light source set in a three-dimensional space; an optical characteristic setting unit to set characteristics of the volume data related to the light source; an illumination calculation unit calculates illumination of coordinates of the volume data based on the light source data and optical characteristics and generate illumination volume data based on calculated illumination; and a projection processing unit generates the three-dimensional image from the illumination volume data.

Ultrasonic diagnostic device and ultrasonic three-dimensional image generation method

According to one embodiment, a depth map used for a reflection model is generated based on a power image as a blood flow image. A reflection image is generated from the depth map according to the reflection model. By synthesizing the reflection imagewith the power image, a weighted power image is generated. Using the same method as described above, a weighted velocity image may be generated.

Blood flow image processing apparatus and blood flow image processing method

Provided is an ultrasound diagnostic apparatus capable of creating a three-dimensional image that expresses the shading effect due to leakage, absorption or others of light. The apparatus displays a three-dimensional image of an object based on luminance volume data, and includes: a light source information setting unit configured to set light source data indicating a property of a light source that is set in a three-dimensional space; an optical property setting unit configured to set a weight coefficient indicating an optical property of the luminance volume data with respect to the light source; an illuminance calculation unit configured to calculate an illuminance at a position corresponding to a coordinate of the luminance volume data, based on the optical data and the weight coefficient, and to create illuminance volume data based on the calculated illuminance; and a volume rendering unit configured to create the three-dimensional image from the data.

Ultrasound diagnostic apparatus and ultrasound three-dimensional image creation method

An ultrasound diagnostic apparatus includes a light source information setting unit setting light source data indicating a property of a light source irradiated to a cross section region of the object, an optical property setting unit setting a weight coefficient indicating an optical property of cross-section region data including intensity information on the cross section region to the light source, an illuminance slice data creation unit calculating illuminance at positions corresponding to coordinates of a plurality of the cross-section regions based on the light source data and the weight coefficient, and creating illuminance slice data of the plurality of the cross-section regions based on the calculated illuminance, and a composition unit compositing a two-dimensional cross-section image of the object from the plurality of illuminance slice data.

Ultrasound diagnostic apparatus and ultrasound two-dimensional cross-section image generation method

For generating ultrasonic projection images in which various kind of ultrasonic projection images have been appropriately combined, the invention is provided with: a storage unit that stores tomographic image volume data and elastic image volume data; a volume rendering unit that generates tomographic projection images by volume rendering on the basis of the tomographic image volume data; a display device that displays the ultrasonic projection images generated by the volume rendering unit; and an operation unit for inputting commands to control the volume rendering unit. For one of the rendering spaces partitioned by a cutting plane set in the rendering space by a command input from the operation unit, the volume rendering unit renders voxels of tomographic image volume data corresponding to the voxels of elastic image volume data that have elasticity values satisfying a set threshold value, and generates and displays the tomographic projection image on the display device.

Ultrasonic diagnostic apparatus and ultrasonic image display method

Provided is an ultrasonic diagnostic apparatus configured to appropriately display a region of interest that is intended to be observed in a 3-dimensional elastic image, and also provided is an ultrasonic image display method. The ultrasonic diagnostic apparatus includes an elastic opacity table creating section for creating, on the basis of the elasticity values, an elastic opacity table used for setting an opacity in the volume rendering of the elastic volume data.

In order to provide an ultrasonic diagnostic apparatus and an ultrasonic image display method for appropriately displaying a three-dimensional elastic image, a three-dimensional blood flow image, and a three-dimensional tomographic image such that the images can be separately recognized, the ultrasonic diagnostic apparatus includes projected image creation units that create a plurality of projected images from the plurality of types of volume data and a projected image combination unit that creates a composite projected image by combining the plurality of projected images on the basis of a predetermined combination rate, and the display unit displays the composite projected image.

In order to generate a three-dimensional tomographic image in which the visibility of specific tissue that an examiner wants is enhanced, an ultrasonic diagnostic apparatusof the present invention includes: an offset calculating sectionwhich increases or decreases the brightness value of each voxel according to the brightness value of each voxel of a three-dimensional tomographic image volume data. The amount of increase or decrease in the brightness value of each voxel of the offset calculating section is adjustable through a control panel, and a tomographic image volume rendering section generates the three-dimensional tomographic image on the basis of a three-dimensional tomographic image volume data in which the brightness value is offset by the offset calculating section.

Ultrasonic diagnostic apparatus, ultrasonic image processing apparatus, ultrasonic image processing program, and ultrasonic image generation method

An ultrasonic diagnostic apparatus is disclosed for imaging 3-dimensional images by irradiating ultrasonic waves to an object and reconstructing the 3-dimensional image. The ultrasonic diagnostic apparatus includes an ultrasonic probe for transmitting/receiving ultrasonic waves to/from an object to be examined, an ultrasonic image construction unit for constructing a 3-dimensional ultrasonic image based on the 3-dimensional ultrasonic image data from the ultrasonic signals received from the ultrasonic probe, and a display unit for displaying the 3-dimensional ultrasonic image. A position sensor is provided for detecting the position of the ultrasonic probe. A positional information analyzing unit stores the first position of the ultrasonic probe obtained from the position sensor and analyzes the positional relationship between the first position and the second position. The ultrasonic image construction unit converts the 3-dimensional ultrasonic image data obtained at the second position into a 3-dimensional ultrasonic image at the first position according to the positional relationship, thereby constructing the 3-dimensional ultrasonic image at the first position.

Growing community of inventors

Tokyo, Japan

Takehiro Tsujita