摘要:
A tomographic image and a tissue characteristic image that are in conformity with each other in terms of time-phase and positional relationships can be displayed superimposedly, thereby providing an excellent ultrasonic diagnostic apparatus that enables an easy and detailed observation of a relationship between a structure and a characteristic of a subject tissue. During an operation of ultrasonic wave transmission/reception (in a live mode), a control part (100) allows a tomographic image to be renewed continuously, displayed on a monitor (107), and stored in a tomographic image memory (110), while allowing an elastic modulus image as a tissue characteristic image to be renewed per heartbeat, displayed on the monitor, and stored in an elastic-modulus-image memory (111) as a tissue characteristic image memory. During a suspension of ultrasonic wave transmission/reception (in a cine mode), the control part (100) allows the elastic modulus image to be read out from the elastic-modulus-image memory and the tomographic image that is in synchronization with the elastic modulus image to be read out from the tomographic image memory, and allows these images to be displayed on the monitor.
摘要:
There is provided an excellent biological signal monitor device that allows a living tissue moving in accordance with a body motion or a vibration to be observed as if it were standing still. A reverse correction processing unit (114) subjects a B-mode image to reverse correction based on a movement amount of the living tissue detected by a movement amount detection unit (113), and outputs the B-mode image corresponding to the living tissue moving in accordance with a body motion as quasi-still image information. An arithmetic processing unit (115) subjects the quasi-still image information from the reverse correction processing unit (114) to arithmetic processing such as averaging and filter processing, so as to remove a random noise component. As a result, it is possible to display, for example, a contour portion of a blood vessel wall as the living tissue clearly.
摘要:
An ultrasonic diagnostic apparatus includes a transmission unit that transmits at least one ultrasonic pulse from a surface of a skin of a subject toward a blood vessel (21) thereof, a reception unit (3) that receives an ultrasonic echo reflected by the blood vessel and converts the same into an electric signal to obtain a signal of the ultrasonic echo along a depth direction from the surface of the skin, a movement detection unit (5) that analyzes a phase of the ultrasonic echo signal in a direction traversing the blood vessel so as to calculate a movement amount in each of a plurality of parts included in a blood vessel wall constituting the blood vessel and a vicinity of the blood vessel wall, and a boundary detection unit (7) that detects a boundary position between the blood vessel wall and a blood flow region (22) in a lumen of the blood vessel through which blood flows based on a variation in the calculated movement amount in each part. Instability occurring when a brightness signal in image data is used can be eliminated, so that a state of a blood vessel, such as an IMT value, can be measured correctly using ultrasonic waves.
摘要:
There are provided transmission means (1) for transmitting an ultrasonic signal from a surface of a skin of a subject toward a blood vessel (21) of the subject, reception means (3) for receiving a reflected ultrasonic echo and converting the ultrasonic echo into an electric signal to obtain the ultrasonic echo signal in a depth direction from the surface of the skin, movement detection means (5) for analyzing a phase of the ultrasonic echo signal in a direction traversing the blood vessel to calculate a movement amount in each of a plurality of regions including a blood vessel wall and a vicinity of the blood vessel wall, analysis means (7) for analyzing a state of the blood vessel based on a variation in the calculated movement amount in each of the regions, boundary position detection means (8) for detecting a boundary position between the blood vessel wall and a blood flow region of the blood vessel based on a result of the analysis by the analysis means, and stability judgment means (15) for comparing the detected boundary position with a detection result in a previous cycle.
摘要:
An ultrasonic detecting portion 1 that transmits an ultrasonic wave to a subject and receives a reflected wave therefrom, an image display portion 6 that has a diagnostic image display region 8 for displaying a diagnostic image based on an image signal from the ultrasonic detecting portion and displays a setting button 9 and a cursor 7 of a pointing device for making a selection of a setting condition, and a control portion 5 that has a function of setting and changing the setting condition based on an instruction to select the setting condition are provided. A function in which a pop-up menu opens by locating the cursor on the operation button, and a function in which an alternative in the pop-up menu is selected by locating the cursor on the alternative and the alternative that is selected last is confirmed by moving the cursor to a region outside the pop-up menu are provided. It is possible to select a parameter of the operation button solely with a cursor operation of the pointing device.
摘要:
The present invention aims at providing an ultrasonic diagnostic apparatus capable of acquiring more accurate tissue character values such as strain, an average elastic modulus, and an average viscosity.The ultrasonic diagnostic apparatus of the present invention detects tissue boundaries of a subject in accordance with a received signal based on an ultrasonic echo from a receiving section 103, by means of a boundary detection section 110; and tracks motions of the tissue boundaries of the subject by means of a tissue tracking section 108. A tissue character value computing section 109 computes tissue character values of the subject from the motions of the tissue boundaries of the subject tracked by the tissue tracking section 108 and a blood pressure value of the subject acquired from a blood pressure value acquisition section 112.
摘要:
The present invention aims at providing an ultrasonic diagnostic apparatus capable of displaying a stable spatial distribution of elastic characteristics for each hear beat without depending on the accuracy or stability of measurement of blood pressure and without involvement of measurement of blood pressure.In an ultrasonic diagnostic apparatus of the present invention, an ultrasonic reflected wave transmitted from an ultrasonic probe 13 and reflected by biomedical tissue is input to a computing section 19 by way of a receiving section 15, a delay time control section 16, a phase detection section 17, and a filter section 18. In accordance with the phase detection signal acquired from the phase detection section 17, the computing section 19 computes a relative elastic characteristic which is an elastic characteristic normalized by an elastic characteristic of an arbitrary reference area in the biomedical tissue. A distribution of relative elastic characteristics computed by the computing section is displayed on a display section 21.
摘要:
An ultrasonic diagnostic apparatus according to the present invention includes: a transmitting section 102 driving an ultrasonic probe; a receiving section 103 receiving an ultrasonic echo, produced by getting an ultrasonic wave reflected by a subject, at the probe to generate a received signal; a tissue tracking section 105 for tracking the motion of each tissue of the subject based on the received signal and outputting location tracking information; a radius and wall thickness calculating section calculating the radius and wall thickness of the blood vessel; a tissue attribute value calculating section 108 calculating radial and circumferential elasticities of the vascular wall of the vessel based on information about the blood pressure of the subject provided externally, the tracking information, and the radius and wall thickness of the vessel; and a display section 107 presenting the radial and circumferential elasticities. While the transmitting section and the receiving section are transmitting or receiving the ultrasonic wave, the tissue attribute value calculating section calculates the radial elasticities one after another based on the tracking information and the information about the blood pressure, and the display section presents the radial elasticities. But while the transmission and reception of the ultrasonic waves are suspended, the tissue attribute value calculating section calculates the circumferential elasticity based on the tracking information, the information about the blood pressure, and the radius and wall thickness of the blood vessel and the display section presents the circumferential elasticities.
摘要:
An ultrasonic diagnostic apparatus according to the present invention is designed to measure a vascular wall. The apparatus includes: a transmitting section that drives a probe to transmit an ultrasonic wave toward a subject including a blood vessel; a receiving section that receives an ultrasonic echo, produced by getting the ultrasonic wave reflected by the subject, at the probe to generate a received signal; a tomographic image processing section for generating an image signal based on the received signal to present the tomographic image of the subject on a display section; a first borderline generating section for determining a first type of borderline based on the tomographic image presented on the display section; and a second borderline generating section for generating at least one borderline of a second type by translating the first type of borderline.
摘要:
The present invention aims at providing an ultrasonic diagnostic apparatus capable of displaying a stable spatial distribution of elastic characteristics for each heart beat without depending on the measurement of blood pressure and the accuracy or stability of such measurement, where an ultrasonic wave transmitted from an ultrasonic probe 13 and reflected by biomedical tissue is input to a computing section 19 by way of a receiving section 15, a delay time control section 16, phase detection section 17 and filter section 18. In accordance with the phase detection signal acquired from the phase detection section 17, the computing section 19 computes a relative elastic characteristic which is an elastic characteristic normalized by an elastic characteristic of an arbitrary reference area in the biomedical tissue. A distribution of relative elastic characteristics computed by the computing section is displayed on a display section 21.