摘要:
There is provided an ultrasonic diagnostic apparatus that can classify an elasticity image by using elasticity data of the elasticity image and image information and objectively estimate a progress state of a disorder. The ultrasonic diagnostic apparatus has an elasticity information calculator for calculating elasticity data of a biomedical tissue by using RF signal frame data from the inside of an object which is received by ultrasonic wave transmitting/receiving means, an elasticity image constructing unit for generating an elasticity image on the basis of a distortion amount and/or an elasticity modulus calculated by an elasticity information calculator, an elasticity image estimating unit 11 for generating estimation data for estimating the characteristic of a biomedical tissue on the basis of an elasticity image, and an image classifying unit 12 for classifying an elasticity image by using at least one of estimation data generated by the elasticity image estimating unit 11. A classification result of the classifying unit 12 is displayed on a display unit through a switching and displaying unit 14.
摘要:
A pressing device for smoothly performing pressing operation, an ultrasonic probe, and an ultrasonic diagnosis device. The pressing device has a balloon used installed on an ultrasonic transmission/reception surface of an ultrasonic probe and presses a subject by the balloon. The balloon has a hollow pressing section made of an elastic material, a tube for placing and discharging liquid from the pressing section, and an installation section contiguous to the peripheral edge of the pressing section and installing the pressing section onto the ultrasonic transmission/reception section of the ultrasonic probe. The inner diameter of the installation section or the pressing section is set smaller than the outer diameter of that section of the ultrasonic probe on which the installation section or the pressing section is installed. Because tension is applied to the pressing section, pressing operation can be started with a less amount of initial injection, and this makes the pressing operation smooth.
摘要:
A pressing device for smoothly performing pressing operation, an ultrasonic probe, and an ultrasonic diagnostic apparatus are provided. The pressing device has a balloon installed on an ultrasonic transmission/reception surface of an ultrasonic probe and presses an object to be examined by the balloon. The balloon has a hollow pressing unit made of an elastic material, a tube for charging/discharging liquid to/from the pressing unit, and an attachment part contiguous to the peripheral edge of the pressing unit and attaching the pressing unit to the ultrasonic transmission/reception unit of the ultrasonic probe. The inner diameter of the attachment part or the pressing unit is set smaller than the outer diameter of the part of the ultrasonic probe on which the attachment part is attached. Because tension is applied to the pressing unit, pressing operation can be started with a less amount of initial injection, and this makes the pressing operation smooth.
摘要:
An ultrasonic diagnostic apparatus for recognition helpful to diagnosis by giving and displaying a score serving as an index of diagnosis. An ultrasonic diagnostic apparatus comprises a displacement measuring section (109) for measuring the displacement of an organism tissue of a subject (100) according to a reflection echo signal received correspondingly when an ultrasonic wave is transmitted from a probe (101) to the subject (100), an elastic image creating section for creating an elastic image after determining the distortion amount or the elastic modulus from the displacement, and an image display (107) for displaying the elastic image. The ultrasonic diagnostic apparatus further comprises scoring means for specifying the distorted state or elastic state according to the information on the elastic image outputted from the elastic image creating section.
摘要:
An ultrasound diagnostic apparatus according to the present invention includes means for generating a tomographic image from a reflected echo signal received by the probe corresponding to an ultrasound wave transmitted by a probe put on an object to be examined, means for measuring a displacement of the object's tissue and calculating elasticity information on the basis of a reflected echo signal received from the object corresponding to an ultrasound wave transmitted while the pressure applied when the probe is put on the object is changed, and generating a color elasticity image from the elasticity information, means for generating a translucent image from the color elasticity image on the basis of image information of either the tomographic image or the color elasticity image, and overlapping the translucent image and the tomographic image, and means for displaying the combined image. With this structure, relation between the tissue and its elastic behavior can be properly diagnosed with the ultrasound diagnostic image.
摘要:
Considering that the frequency of the response signal from a contrast medium is distributed over a wide frequency range and the strength of the response signal is great, an ultrasonic enhanced-contrast imager is provided with a bandpass filter (34) for extracting a specific frequency component from a response signal received when an ultrasonic wave is radiated to an organism tissue containing a contrast medium. The imager is further provided with a means for limiting the bandwidth to a range from 1.2 f0 to 1.8 f0, not limiting it to the second harmonic 2f0 like in the prior art and a means for adding/subtracting the response signal obtained by applying a beam of ultrasonic wave of a first transmission waveform in a direction to/from the response signal obtained by applying in the same direction a beam of ultrasonic wave of a second transmission waveform the amplitude and frequency of which are modulated differently from those of the first transmission waveform. The response signal from the organic tissue can be discriminated from the second harmonic component contained in the response signal, and thereby the distribution of the contrast medium is clearly shown in the image.
摘要:
An ultrasound probe includes an ultrasound wave transmit/receive surface coming into contact with a contact surface of a subject, an ultrasound wave transmit/receive section which transmits an ultrasound wave to the subject via the ultrasound wave transmit/receive surface and the contact surface and receives an ultrasound wave reflected in the subject, and a pressing mechanism for performing a pressing operation for applying a pressure to the contact surface perpendicularly to the ultrasound wave transmit/receive surface via the ultrasound wave transmit/receive surface.
摘要:
An ultrasonic image 105, 106 is captured by an ultrasonic probe 104. A reference image 111 is obtained by extracting a tomographic image corresponding to the scan plane of the ultrasonic image from volume image data that is pre-obtained by a diagnostic imaging apparatus 102 and that is stored in a volume-data storing unit 107. The ultrasonic image and the reference image 111 are displayed on the same screen 114. In this case, of the reference image, a portion corresponding to the view area of the ultrasonic image is extracted and the resulting reference image having the same region as the ultrasonic image is displayed as a fan-shaped image.