Patent classifications
A61B8/15
Ultrasonic diagnostic system and ultrasonic diagnostic method
An ultrasonic diagnostic system includes elements disposed around a subject to transmit and/or receive ultrasonic waves. A controller controls the elements so that some of the elements disposed in a first region transmit ultrasonic waves at a first angle to a diagnosis target in the subject, some of the elements disposed in a second region receive reflected waves of the ultrasonic waves, which are reflected from the diagnosis target at a second angle, and some of the elements disposed in a third region receive reflected waves of the ultrasonic waves, which are reflected from the diagnosis target at a third angle distinct from the second angle. An operator calculates a velocity vector of the diagnosis target using the reflected waves received by the some of the elements disposed in the second region and the reflected waves received by the some of the elements disposed in the third region.
Ultrasonic diagnostic system and ultrasonic diagnostic method
An ultrasonic diagnostic system includes elements disposed around a subject to transmit and/or receive ultrasonic waves. A controller controls the elements so that some of the elements disposed in a first region transmit ultrasonic waves at a first angle to a diagnosis target in the subject, some of the elements disposed in a second region receive reflected waves of the ultrasonic waves, which are reflected from the diagnosis target at a second angle, and some of the elements disposed in a third region receive reflected waves of the ultrasonic waves, which are reflected from the diagnosis target at a third angle distinct from the second angle. An operator calculates a velocity vector of the diagnosis target using the reflected waves received by the some of the elements disposed in the second region and the reflected waves received by the some of the elements disposed in the third region.
Apparatus and method for determining blood flow velocity
Apparatus and method comprising an ultrasound transmitter, for placement at a first location on the body of a subject, to emit an ultrasound pulse; an ultrasound receiver, for placement at a second location on the body, to detect an emitted ultrasound pulse; and a controller in communication with the transmitter and receiver. The controller causes an ultrasound pulse to be emitted by the transmitter; receives a measurement signal from the receiver; determines, based on the received measurement signal, a time of arrival at the receiver, T.sub.1 s of a first part of the emitted ultrasound pulse; determines, based on the received measurement signal, a time of arrival at the receiver, T.sub.2, of a second part of the ultrasound pulse; and calculates, using T.sub.1 and T.sub.2, a flow velocity of blood in a blood vessel between the first location and the second location.
Apparatus and method for determining blood flow velocity
Apparatus and method comprising an ultrasound transmitter, for placement at a first location on the body of a subject, to emit an ultrasound pulse; an ultrasound receiver, for placement at a second location on the body, to detect an emitted ultrasound pulse; and a controller in communication with the transmitter and receiver. The controller causes an ultrasound pulse to be emitted by the transmitter; receives a measurement signal from the receiver; determines, based on the received measurement signal, a time of arrival at the receiver, T.sub.1 s of a first part of the emitted ultrasound pulse; determines, based on the received measurement signal, a time of arrival at the receiver, T.sub.2, of a second part of the ultrasound pulse; and calculates, using T.sub.1 and T.sub.2, a flow velocity of blood in a blood vessel between the first location and the second location.
ULTRASOUND DIAGNOSTIC SYSTEM AND ULTRASOUND DIAGNOSTIC METHOD
An ultrasound diagnostic system includes a plurality of elements arranged around a test object and emitting and receiving ultrasound, a control unit controlling such that at least one of the elements emits ultrasound and at least some of the elements receive scattered waves, a collection unit collecting measurement data obtained from the elements, a calculation unit that calculates, for a plurality of division regions into which an imaging region is divided, a scattered sound pressure intensity of each division region based on a first factor and a second factor of the division region, the first factor being constituted by arrival times which are each a period from emission to reception of ultrasound that is emitted from a predetermined element, scattered by the test object in the division region, and received by a corresponding one of the plurality of elements, and an image generation unit that generates a scattering image.
PREDICTIVE USE OF QUANTITATIVE IMAGING
The present disclosure provides systems and methods for predicting a disease state of a subject using ultrasound imaging and ancillary information to the ultrasound imaging. At least two quantitative measurements of a subject, including at least one measurement taken using ultrasound imaging, as part of quantified information can be identified. One of the quantitative measurements can be compared to a first predetermined standard, included as part of ancillary information to the quantified information, in order to identify a first initial value. Further, another of the quantitative measurements can be compared to a second predetermined standard, included as part of the ancillary information, in order to identify a second initial value. Subsequently, the quantitative information can be correlated with the ancillary information using the first initial value and the second initial value to determine a final value that is predictive of a disease state of the subject.
PREDICTIVE USE OF QUANTITATIVE IMAGING
The present disclosure provides systems and methods for predicting a disease state of a subject using ultrasound imaging and ancillary information to the ultrasound imaging. At least two quantitative measurements of a subject, including at least one measurement taken using ultrasound imaging, as part of quantified information can be identified. One of the quantitative measurements can be compared to a first predetermined standard, included as part of ancillary information to the quantified information, in order to identify a first initial value. Further, another of the quantitative measurements can be compared to a second predetermined standard, included as part of the ancillary information, in order to identify a second initial value. Subsequently, the quantitative information can be correlated with the ancillary information using the first initial value and the second initial value to determine a final value that is predictive of a disease state of the subject.
Apparatus and methods for detecting increase in intracranial pressure
The disclosed subject matter related to methods and apparatus for determining brain swelling in a patient as well as predicting an increase in intracranial pressure in the patient. The apparatus can include a transducer such as an ultrasound transducer communicatively connected to a controller via wires or via wireless communications device(s). A monitor and/or alarm device can be provided to notify a practitioner when the controller has determined brain swelling is occurring and/or when an imminent increase in intracranial pressure is likely to occur.
Apparatus and methods for detecting increase in intracranial pressure
The disclosed subject matter related to methods and apparatus for determining brain swelling in a patient as well as predicting an increase in intracranial pressure in the patient. The apparatus can include a transducer such as an ultrasound transducer communicatively connected to a controller via wires or via wireless communications device(s). A monitor and/or alarm device can be provided to notify a practitioner when the controller has determined brain swelling is occurring and/or when an imminent increase in intracranial pressure is likely to occur.
Photoacoustic tracking and registration in interventional ultrasound
An ultrasound imaging system having real-time tracking and image registration includes a fiducial-marker system comprising an ultrasound transmitter structured to provide a localized ultrasound pulse at an optically observable localized spot on a body of interest. The system further includes an optical imaging system, a two-dimensional ultrasound imaging system, an optical image processing system, and an ultrasound image processing system. The ultrasound imaging system further includes a registration system configured to communicate with the optical image processing system and the ultrasound image processing system to receive information, the registration system being further configured to determine a coordinate transformation that registers the optical image with the two-dimensional ultrasound image based at least partially on information concerning the spatial locations determined for the combined ultrasound and optical fiducial marker observed in the optical image and in the two-dimensional ultrasound image.