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7611467 |
Method and apparatus for extracting an envelope curve of a spectrogram
A method and apparatus for extracting an envelope curve of a spectrogram, for use in measurement of blood flow velocity by using spectral Doppler techniques, the method comprising steps of:...
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7611464 |
Method for processing Doppler signal gaps
A method for processing Doppler signal gaps may include receiving Doppler signals during Doppler signal acquisition to obtain data of in-phase (I) component and quadrate (Q) component signals of...
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7604599 |
Systems and methods for using dynamic vascular assessment to improve vascular stent placement, application, design and marketing
The invention relates to systems and methods for assessing blood flow in single or multiple vessels and segments, for assessing vascular health, for conducting clinical trials, for screening...
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7604598 |
Apparatus, system and method for evaluation of esophageal function
A method, system and apparatus for ultrasonically imaging boli that are swallowed, as they are passed through the esophagus. The trajectories of the boli are tracked, and image data corresponding...
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7594890 |
Multi-axial uterine artery identification, characterization, and occlusion devices
A system is provided for compressing one or both of the uterine arteries of a patient which is at least in part shaped to complement the shape of the exterior of the cervix, which allows the system...
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7591787 |
Method for removing Doppler angle ambiguity
A method of measuring blood flow including several steps. In an initial step a first ultrasound beam is oriented in a direction substantially perpendicular to the direction of the blood flow to be...
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7588538 |
Ultrasonic diagnostic equipment and image processing apparatus
After the establishment of the saturation state of a contrast medium which has flowed into a subject for scanning inside a patient given the contrast medium, scan is performed under a high acoustic...
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7569016 |
Ultrasonic diagnostic apparatus
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...
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7563229 |
Method and apparatus for automatically measuring delay of tissue motion and deformation
System and method for automatically measuring the delay of tissue motion and deformation. For example, asynchrony may be measured between the left and right ventricles and within the left...
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7547284 |
Bilateral differential pulse method for measuring brain activity
A method of measuring human brain activity includes the steps of simultaneously measuring pulses at two locations on a human subject that each receives blood from a different carotid artery that...
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7537568 |
Doppler ultrasound method and apparatus for monitoring blood flow
A pulse Doppler ultrasound system and associated methods are described for monitoring blood flow. A graphical information display includes simultaneously displayed depth-mode and spectrogram...
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7536043 |
Flow representation method and system for medical imaging
Flow is represented by a synthesized or artificial pattern. Motion is visualized by apparent displacement of pixels from one frame to the next. An artificial pattern is introduced in order to...
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7534209 |
Device and method for mapping and tracking blood flow and determining parameters of blood flow
Provided herein is a method for use in medical applications that permits affordable three-dimensional imaging of blood flow using a low-profile easily-attached transducer pad, real-time blood-flow...
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7513871 |
Blood flow analysis system
A portable apparatus for conveying blood flow parameters to a user, the apparatus comprising: a transducer device for providing for Doppler monitoring of flows within a patient; a processing unit...
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7503896 |
Method and apparatus for the noninvasive assessment of hemodynamic parameters including blood vessel location
A method and apparatus for determining the mean arterial blood pressure (MAP) of a subject during tonometric conditions. In one embodiment, the apparatus comprises one or more pressure and...
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7425198 |
Method and apparatus for automatic location of blood flow with Doppler ultrasound
A method and apparatus for combining therapeutic pulsed or continuous-wave ultrasound with diagnostic pulsed ultrasound are described. In both a therapeutic mode and in a diagnostic mode, the...
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7374539 |
Method and apparatus for predicting material hypertension during pregnancy using coherence analysis of material and fetal blood velocity waveforms
An embodiment of a method of predicting maternal hypertension during pregnancy is disclosed. The method may include measuring a maternal blood velocity waveform and measuring a fetal blood velocity...
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7341562 |
Modulation and analysis of cerebral perfusion in epilepsy and other neurological disorders
A system including an implantable neurostimulator device capable of modulating cerebral blood flow to treat epilepsy and other neurological disorders. In one embodiment, the system is capable of...
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7338450 |
Method and apparatus for performing CW doppler ultrasound utilizing a 2D matrix array
An ultrasound system is provided comprising an ultrasound probe having a 2D matrix of transducer elements transmitting a continuous wave (CW) Doppler transmit signal into an object of interest. The...
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7331928 |
Ultrasonic doppler bloodstream measurement device
The present invention is for an ultrasonic Doppler blood flow measurement device with which high-speed computation is possible, even when a memory having the characteristic of different read/write...
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7309313 |
Vascular disease examining system and bypass vascular diagnosing device
Disclosed are a vascular disease examination system capable of examining and diagnosing vascular diseases such as arterial obliteration by determining the feature quantities of blood flow velocity...
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7270635 |
Flow-rate conservative doppler estimate
A new method is introduced to evaluate the flow through a constriction based on Doppler data and the principle of mass conservation. This principle, properly inserted within a combination of data...
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7238158 |
Pulse interleaving in doppler ultrasound imaging
Ultrasonic acoustic imaging finds many uses, particularly in the field of non-invasive medical testing. Detection of Doppler shifted acoustic frequencies permits observation of flow of a...
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7229412 |
Viewing system having means for processing a sequence of ultrasound images for performing a quantitative estimation of flow in a body organ
A medical ultrasound viewing system for processing a sequence of three-dimensional (3-D) ultrasound images far performing a quantitative estimation of a flow through a body organ comprising means...
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7223365 |
Device and method for detecting the coagulation functions of global, especially primary hemostasis
A method and a device are provided for examining the properties of the global, in particular the primary, hemostasis functions in whole blood or platelet-rich plasma. A volumetric blood flow is...
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7223242 |
Ultrasound imaging system
The present invention is directed to an ultrasound imaging system and method for Doppler processing of data. The ultrasonic imaging system efficiently addresses the data computational and...
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7203534 |
Method of assisting orientation in a vascular system
The invention relates to a method of forming a very accurate vascular map or road map to be associated with the current X-ray image during an invasive vascular intervention. The vascular map is...
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7201758 |
Repairing procedure for the treatment of superficial and/or perforant venous insufficiency of the lower limbs by means of the application of clips, stoppers and/or artificial valves
A repairing procedure for treating Superficial and/or Perforant Venous Insufficiency of the lower limbs, by means of the application of Clips, Stoppers and/or Artificial Valves. The procedure...
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7200431 |
Implantable blood flow monitoring system
An implantable blood flow monitoring system for providing synchronized blood vessel flow and myocardial wall contractility data to an external monitor independent of transcutaneous leads....
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7165010 |
Vessel evaluation methods, apparatus, computer-readable media and signals
Methods, apparatuses, media and signals for evaluating a vessel. One method includes receiving at least one measurement of a physical dimension of the vessel, and producing an indication of...
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7147602 |
Blood rheology measuring apparatus
A blood rheology measuring apparatus has a measuring portion for measuring blood circulation information inside of a living body from outside of the living body. The blood circulation information...
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7120440 |
Velocity estimation apparatus and method using level crossing rate
Disclosed is a velocity estimator using a level crossing rate. The velocity estimator comprises a power calculator for calculating power values of a signal received from a mobile terminal; a mean...
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7104958 |
Systems and methods for investigating intracranial pressure
The invention relates to systems and methods for assessing blood flow in single or multiple vessels and segments, for assessing vascular health, for conducting clinical trials, for screening...
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7066888 |
Method and apparatus for determining an ultrasound fluid flow centerline
A method and associated apparatus are disclosed for determining the location of an effective center of fluid flow in a vessel using an ultrasound apparatus. Ultrasound energy is propagated along an...
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7044913 |
Ultrasonic diagnosis apparatus
An ultrasonic diagnosis apparatus comprises an ultrasound probe, a transmitter (including a transmitting pulse generator and a transmitting beamformer), a receiver (including a preamplifier and a...
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7037267 |
Medical diagnostic methods, systems, and related equipment
A medical diagnostic method, system and related equipment particularly adapted to diagnose disorders of the blood circulation serving the head and neck, and especially the brain. A preferred use of...
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6955648 |
Precision brain blood flow assessment remotely in real time using nanotechnology ultrasound
The present invention relates generally to systems and methods for assessing blood flow in blood vessels, for assessing vascular health, for conducting clinical trials, for screening therapeutic...
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6942617 |
Automatic stone-tracking system
A tracking system for stone treatment by extracorporeal shock wave lithotripsy includes a data processing unit, a motion controller, a servo-moving platform, a stone image-processing module, a...
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6939308 |
Acoustic sensor array for non-invasive detection of coronary artery disease
Methodology for determining the bounds of a patient's acoustic window is described. Medical application acoustic array designs with apertures accommodated by patient acoustic windows and merged...
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6912471 |
Processing method for a volume dataset
A volume dataset describes at least one tubular vessel and its environment. For processing the volume dataset, an operating point is first defined. A computer then determines slice planes...
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6905469 |
Method and apparatus for improving the accuracy with which the speed of a fluid is measured
The present invention relates to a method and associated apparatus for improving the accuracy with which the speed of a fluid, such as a liquid, in particular blood flowing in a duct, such as a...
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6840956 |
Systems and methods for deploying a biosensor with a stent graft
A stent graft includes a tubular prosthetic graft, a support structure expandable between contracted and enlarged conditions, and a biosensor attached thereto. The biosensor may be directly...
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6814702 |
Apparatus for measuring hemodynamic parameters
The present invention is directed toward an ultrasonography apparatus for measuring and/or monitoring hemodynamic activity, such as blood flow. The present invention comprises a doppler ultrasound...
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6796944 |
Display for subtraction imaging techniques
A method and apparatus for displaying reference background and flow ultrasound images. The method comprises: transmitting at least first and second broadband pulses to a common transmit focal...
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6782284 |
Method and apparatus for semi-automatic aneurysm measurement and stent planning using volume image data
An apparatus for measuring parameters preparatory to a stent replacement of an aneurytic blood vessel in a patient ( 26 ) includes a computed tomography (CT) scanner ( 10 ) that acquires image data...
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6780155 |
Method and system for ultrasound blood flow imaging and volume flow calculations
An ultrasound imaging method and system includes a two-dimensional array transducer scanhead coupled to a beamformer. The beamformer and scanhead obtain signals corresponding to ultrasound echoes...
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6776761 |
Hollow microspheres with controlled fragility for medical use
A composition for ultrasonic imaging is described having a microbubble population of controlled fragility. The microbubbles comprise an outer shell and a hollow core. The ratio of shell thickness...
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6773400 |
Noninvasive transcranial doppler ultrasound face and object recognition testing system
A non-invasive method and system to determine face and object processing in a human subject, said method with high temporal resolution, user-friendly and portable, including steps of obtaining a...
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6770034 |
Ultrasonic diagnostic apparatus
The present invention provides an ultrasonic diagnostic apparatus. The ultrasonic diagnostic apparatus comprises an ultrasonic probe ( 1 ) for transmitting ultrasonic pulses into a living body and...
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6733455 |
System and method for adaptive clutter filtering in ultrasound color flow imaging
An adaptive clutter filtering for ultrasound color flow imaging is provided including an iterative algorithm that is used to select the best clutter filter for each packet of color flow data. If...
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