Class / Patent application number | Description | Number of patent applications / Date published |
600428000 | With triggering or gating device | 16 |
20080221445 | Gated optical coherence tomography (OCT) environmental chamber - Systems, methods, and other embodiments associated with gated optical coherence tomography (OCT) are described. One example method includes generating an image control signal to control an OCT apparatus to acquire an image of an embryonic heart at a specified point in time during a cardiac cycle of the embryonic heart. The method may also include controlling the OCT apparatus to acquire the image based on the image control signal. In different examples, the image may be acquired in vivo or from an excised heart that is paced. The OCT apparatus and the embryonic heart may be housed in an environmental chamber having a set of controllable environmental factors. Therefore, the method may include detecting and controlling the set of controllable environmental factors. | 09-11-2008 |
20080275337 | BREATHING DETECTION APPARATUS AND METHOD - A device is disclosed for remote monitoring of breathing movements of a patient, comprising a sender transmitting a microwave signal toward the patient, a receiver arranged to receive a signal reflected by the patient, and a processor. The processor mixes the received signal with the transmitted signal and with a signal in quadrature with the transmitted signal to determine a breathing frequency of the patient. In some embodiments, two signals at different frequencies are emitted toward the patient and processed in order to compensate for breathing patterns that are not uniquely resolvable at a single frequency. | 11-06-2008 |
20090221912 | Imaging and analysis of movement of erythrocytes in blood vessels in relation to the cardiac cycle - Apparatus ( | 09-03-2009 |
20110009743 | DYNAMIC RADIOGRAPHIC IMAGE OBTAINING METHOD AND APPARATUS - A method and apparatus for obtaining a dynamic radiographic image with enhanced resolution, in which an electrocardiogram of a subject is obtained, and five time phases are allocated to each cardiac beat period (1 second). The initial X-ray irradiation is performed at 1 | 01-13-2011 |
20110040178 | METHOD FOR 3-D DATA COLLECTION WITH A BIPLANE C-ARM SYSTEM WITH BIPLANE ACQUISITION MULTIPLEXING - A method for collecting three-dimensional data of an object from a series of projection images recorded by a biplane C-arm system is provided. A cardiac activity is recorded. The cardiac frequency and a start cardiac phase are determined for calculating parameters of the C-arm planes. The C-arm planes are set with the parameters and data is acquired in the start cardiac phase. The C-arm planes are uniformly rotated at a same speed in a forward motion over an angular area and record data at different angular areas at different cardiac phases. Data is acquired in the start cardiac phase after termination of the forward motion. The C-arm planes are uniformly rotated at a same speed in a backward motion over an angular area and records data at different angular areas at different cardiac phases. The captured data are reconstructed after termination of the backward motion upon completed acquisition. | 02-17-2011 |
20110275933 | MOTION COMPENSATION IN NUCLEAR IMAGING - The invention relates to methods and systems for compensating for respiratory motion of individuals during nuclear imaging. In some embodiments, the methods include obtaining data representing a reference respiratory state for the individual and obtaining data that represents a plurality of respiratory states that correspond to at least a portion of a cycle of respiration of the individual; comparing each of the plurality of respiratory states to a subset of the reference state data to obtain a motion estimate of each of the plurality of respiratory states; compensating for respiratory motion in each of the plurality of respiratory states based on the motion estimates to obtain motion-compensated respiratory state data; and constructing an image using the motion-compensated respiratory state data. | 11-10-2011 |
20120083690 | SYSTEM AND METHOD FOR ELECTROMAGNETIC IMAGING AND THERAPEUTICS USING SPECIALIZED NANOPARTICLES - Various systems and methods utilizing composite nanoparticles or other specialized nanoparticles in the context of electromagnetic tomography are described. A method for electromagnetic imaging includes imaging a biological tissue via an electromagnetic tomography system, recording electrical activity of the biological tissue via a biomedical electrical recording system, and correlating dielectric properties of the biological tissue with an electrical signal recorded by the biomedical electrical recording system. A method for electromagnetic imaging and therapeutics using composite nanoparticles includes imaging a biological tissue, via an electromagnetic tomography system, using a material in the composite nanoparticles, implementing a therapy, via a therapeutic application system, using a material in the composite nanoparticles, wherein the implementation is carried out at least partly on the basis of information received from the electromagnetic tomography system, assessing an effect of the therapy, and controlling further implementation of the therapy based on the assessment. | 04-05-2012 |
20120265063 | GATED OPTICAL COHERENCE TOMOGRAPHY (OCT) - Systems, methods, and other embodiments associated with gated optical coherence tomography (OCT) are described. One example method includes generating an image control signal to control an OCT apparatus to acquire an image of an embryonic heart at a specified point in time during a cardiac cycle of the embryonic heart. The method may also include controlling the OCT apparatus to acquire the image based on the image control signal. In different examples, the image may be acquired in vivo or from an excised heart that is paced. The OCT apparatus and the embryonic heart may be housed in an environmental chamber having a set of controllable environmental factors. Therefore, the method may include detecting and controlling the set of controllable environmental factors. | 10-18-2012 |
20130066198 | Contrast Agent Perfusion Adaptive Imaging System - An imaging system selects a medical imaging protocol using a repository of information associating multiple ranges of contrast agent peak time with corresponding different imaging protocols. An imaging protocol comprises a method for acquiring images using an imaging system and using data identifying at least one of (a) an imaging rate within an imaging scan cycle and (b) an interval between imaging scans. A contrast agent peak time comprises a time a contrast agent concentration substantially reaches a peak value in an anatomical region of interest of a patient relative to a time of start of contrast agent injection. A contrast agent peak time detector detects a contrast agent peak time. An imaging processor adaptively selects an imaging protocol from the imaging protocols in response to a comparison of a detected contrast agent peak time with at least one of the plurality of ranges. | 03-14-2013 |
20130211245 | DYNAMIC ACQUISITION SAMPLING RATE FOR COMPUTED TOMOGRAPHY PERFUSION (CTP) IMAGING - A method includes dynamically varying a data acquisition sample rate between at least two data acquisition sample rates during a contrast enhanced perfusion scan based on a level of contrast in image data generated during the scan. A system includes a computed tomography scanner and a console that controls the scanner based on a scan protocol, wherein the console dynamically varies a data acquisition sample rate of scanner during a contrast enhanced perfusion scan based on a level of contrast in the image data generated during the scan. A method for optimizing dose of a scan includes reducing a data acquisition sampling rate during at least a sub-portion of the scan in which a state of interest is not being scanned. | 08-15-2013 |
20140121510 | AGENT IMAGING | 05-01-2014 |
20140180083 | SYSTEM AND METHOD FOR FLUSH-TRIGGERED IMAGING - The invention generally relates to intravascular imaging and methods of improved image quality by triggering image operations with a vessel flush. The invention provides systems and methods for intravascular imaging in which a flush such as the influx of clear saline or radiopaque dye triggers the imaging operation. The flush is detected by a mechanism—such as a pressure sensor or optical device on the imaging catheter, an external angiography system, or other device—that uses detection as a trigger to initiate imaging. Thus, when the blood is flushed, the catheter automatically takes a picture of the vessel wall. | 06-26-2014 |
20140236003 | INTERFACING SYSTEMS, DEVICES, AND METHODS FOR OPTICAL IMAGING - An imaging interface for diffuse optical tomography of breast includes a plurality of concentric rings. Each concentric ring can include a plurality of optical input/output apertures arranged on a radially inner surface thereof. The rings can have different inner and outer diameters from each other and can be arranged in a stacked configuration. The rings can translate independently of each other along a central axis of the stack. During imaging the breast is inserted into an inner region of the stacked rings. The rings can be translated such that the optical input/output apertures are brought into touch contact (i.e., non-compressing contact) with the surface of the breast, so as to accommodate different size breasts. The rings may be translated such that the spacing between adjacent rings is increased for large breasts and reduced for smaller breasts. Rings may be removed or additional rings added to further accommodate additional breast sizes. | 08-21-2014 |
20140276029 | METHOD AND APPARATUS FOR DATA SELECTION FOR POSITRON EMISSION TOMOGRPAHY (PET) IMAGE RECONSTRUCTION - A method for selecting data to reconstruct a three-dimensional (3D) image of a subject of interest includes acquiring a 3D emission dataset of the subject of interest, acquiring a respiratory signal of the subject of interest, the respiratory signal including a plurality of respiratory cycles, and calculating a respiratory profile using the respiratory signal. The method further includes, for each respiratory cycle, generating a gating window, calculating a minimum total squared difference (TSD) between a plurality of phases in the respiratory profile and the same plurality of phases in the respiratory cycle, and positioning the gating window based on the TSD values calculated, and reconstructing a 3D image using only the emission data within the plurality of gated windows. A system and non-transitory computer readable medium are also described herein. | 09-18-2014 |
20160089100 | METHOD AND SYSTEM FOR DETERMINING A MEASUREMENT START TIME - A method is disclosed for determining a measurement start time for an imaging measurement via a medical imaging system depending on a course of concentration values of a contrast medium in a monitored region of an examination object over time. The method includes detecting the concentration values of the current concentration of the contrast medium in the monitored region at different successive detection times; determining a current examination-specific accumulation model curve on the basis of a course of the concentration values over time; and determining the measurement start time on the basis of the examination-specific accumulation model curve. A method for controlling a medical imaging system, a control device and a medical imaging system for implementing the method are further disclosed. | 03-31-2016 |
20160106382 | SYSTEMS AND RELATED METHODS FOR STATIONARY DIGITAL CHEST TOMOSYNTHESIS (S-DCT) IMAGING - Systems and related methods for stationary digital chest tomosynthesis (s-DCT) imaging are disclosed. In some aspects, systems include a stationary x-ray source array with an array of x-ray pixels configured to generate x-ray beams at different viewing angles relative to a subject to be imaged that is stationary, a stationary area x-ray detector configured to record x-ray projection images of the subject, a physiological gating apparatus for monitoring at least one physiological signal of the subject and defining a physiological phase and a time window based on the at least one physiological signal, and a computing platform configured to activate the x-ray pixels based on the physiological phase and the time window and upon receipt of the at least one physiological signal from the physiological gating apparatus in order to synchronize x-ray exposure with the at least one physiological signal of the subject. | 04-21-2016 |