100 results about "Intravascular imaging" patented technology

A system includes a processor circuit that receives intravascular imaging data from an intravascular imaging catheter, an x-ray image from an x-ray imaging device, and intravascular pressure data from an intravascular pressure-sensitive guidewire. The processor circuit correlates the intravascular imaging data and the intravascular pressure data with locations along a body lumen shown in the x-ray image. The processor circuit generates a longitudinal view of the body lumen based on the intravascular imaging data and outputs a screen display including the longitudinal view of the body lumen with an overlaid graphic representation corresponding to the intravascular pressure measurements.

A system includes a processor circuit that receives intravascular imaging data from an intravascular imaging catheter, an x-ray image from an x-ray imaging device, and intravascular pressure data from an intravascular pressure-sensing guidewire. The processor circuit correlates the intravascular imaging data and the intravascular pressure data to locations along a body lumen shown in the x-ray image. The processor circuit generates a longitudinal view of the body lumen based on the intravascular imaging data and outputs a screen display including the longitudinal view of the body lumen with an overlaid graphical representation corresponding to the intravascular pressure measurements.

An apparatus includes a processor configured for communication with an intravascular imaging catheter and a display. The processor controls the catheter to obtain intravascular images while the catheter is moved through a blood vessel including a lesion. The processor generates, based on the images, a comparison view for planning a stent to provide treatment for the lesion including a first stent option area and a second stent option area displayed simultaneously on the display. The first stent option area includes a visual representation of the blood vessel, a first virtual stent with a first length, intravascular images or metrics associated with the first stent length. The second stent option area includes the visual representation of the blood vessel, a second virtual stent overlaid on the visual representation and comprising a different, second length; and intravascular images or metrics associated with the second stent length.

The utility model belongs to the technical field of interventional catheters, and discloses an interventional intravascular imaging catheter. The interventional intravascular imaging catheter comprises a catheter body, an imaging component and a shaft sleeve, the catheter body comprises a shell and a sheathing canal assembly, the near end of the sheathing canal assembly is connected into the far end of the shell, the imaging component is arranged in the catheter body and can rotate relative to the catheter body and move in the axial direction of the catheter body, and the imaging component comprises an optical fiber plug and an imaging assembly; the optical fiber plug is located in the shell, the near end of the imaging assembly is inserted into the optical fiber plug, the far end of the imaging assembly penetrates through the shell and extends into the far end of the sheathing canal assembly, and the shaft sleeve is fixedly arranged in the shell and arranged outside the imaging assembly in a sleeving mode. According to the interventional intravascular imaging catheter, the shaft sleeve can support the imaging assembly to a certain degree, jumping of the imaging assembly in the whole high-speed rotation withdrawing process is reduced as much as possible, and therefore lens shaking at the far end of the imaging assembly is reduced, and imaging quality is guaranteed.

The invention provides an image processing method and device, electronic equipment and a computer readable medium, and relates to the technical field of intravascular imaging. The method is applied to an intravascular ultrasound system and comprises the following steps: responding to a switching action of a time gain compensation switch, and recording the action time and the gain level of the switching action; acquiring echo data corresponding to the action time; determining target noise data corresponding to the gain level from a preset time gain compensation switching noise table; subtracting the noise data from the echo data to obtain final image data; according to the method and the device, the time of the switching action of the time gain compensation switch and the corresponding gain level are positioned, the noise data are determined in the preset time gain compensation switching noise table, and the noise data are correspondingly subtracted from the echo data, so that the influence of noise is eliminated, and the user experience is improved.

An intravascular imaging system includes an imaging catheter, a first imaging device that is translatable and rotatable within the imaging catheter and a second imaging device that is translatable and rotatable within the imaging catheter. A connector assembly is disposed adjacent to a proximal end region of the imaging catheter and is configured to connect the imaging catheter to a control unit. The connector assembly includes a first pair of electrical connectors for connecting the first imaging device to the control unit and a second pair of electrical connectors for connecting the second imaging device to the control unit. The imaging catheter may further include an optical imaging device and an optical fiber cable that extends between the optical imaging device and the connector assembly.

In an exemplary example, methods and systems are disclosed herein for treating vascular disease by implanting a stent within a vessel and using intravascular imaging to determine and ensure that the stent is properly implanted and produces the desired and effective results. For example, a system can obtain optical shape sensing data and intravascular imaging data of a vessel. The system can process the optical shape sensing data and the intravascular imaging data to generate three-dimensional models and images of the vessel immediately before and after the stent is implanted in the vessel and make an exact comparison of the before and after images to ensure that the stent is properly implanted and will produce or is producing the desired and effective results. The exact comparison can be based on a derived diameter associated with the location of the stent placement in the vessel, which is based on the generated pre- and post- three-dimensional models.

A neural network is trained for estimating patient hemodynamic data using a plurality of extravascular imaging data sets and a plurality of intravascular imaging data sets that are each co-registered to a corresponding extravascular imaging data set. A plurality of hemodynamic data sets are provided, each hemodynamic data set co-registered with the corresponding extravascular imaging data set. The neural network learns what hemodynamic data to expect for a given intravascular imaging data set. An intravascular imaging event is subsequently performed in which an intravascular imaging element is translated within a blood vessel of the patient to produce one or more intravascular images. The neural network uses its training to predict hemodynamic values corresponding to the one or more intravascular images from the intravascular imaging event, and the one or more intravascular images are outputted in combination with the predicted hemodynamic values.

The present disclosure provides a system for localizing the position of an endovascular probe and collecting high-resolution images of the anatomy surrounding the probe. In particular, a switchable endovascular imaging antenna / probe and related devices are disclosed, which are conveniently switchable between a configuration that allows the localization with high precision of the distal tip of an endovascular probe, and another configuration that allows imaging in the locality of the probe tip. Embodiments are also disclosed capable of delivering ablation therapy.

An intravascular imaging system includes an imaging catheter, a first imaging device that is translatable and rotatable within the imaging catheter and a second imaging device that is translatable and rotatable within the imaging catheter. A connector assembly is disposed adjacent to a proximal end region of the imaging catheter and is configured to connect the imaging catheter to a control unit. The connector assembly includes a first pair of electrical connectors for connecting the first imaging device to the control unit and a second pair of electrical connectors for connecting the second imaging device to the control unit. The imaging catheter may further include an optical imaging device and an optical fiber cable that extends between the optical imaging device and the connector assembly.

The invention discloses a laser-induced shock wave balloon device integrated with optical coherence tomography and a using method thereof, and belongs to the technical field of medical instruments. A laser-induced shock wave balloon device integrated with optical coherence tomography comprises a balloon assembly, and a laser, optical coherence tomography equipment and a console which are connected with the balloon assembly, a micro electric push rod and a micro motor are matched with a concave refractor, so that the focusing and irradiation positions of laser can be flexibly adjusted, the integrated device can perform intravascular imaging and calcified plaque fragmentation treatment at the same time, on one hand, the calcified plaque can be accurately positioned, an accurate basis is provided for subsequent treatment, and the treatment efficiency is improved. The risk caused by blind operation is avoided; on the other hand, compared with a traditional means, the laser-induced shock wave technology can more effectively break calcified plaques with high hardness and large toughness, and complications such as vascular interlayers or elastic retraction are reduced.

The present disclosure provides systems and methods for determining a mean transit time of a bolus within the blood vessel by passing the bolus through the blood vessel while an intravascular imaging probe is held stationary. The probe may collect a plurality of image frames as the bolus passes the probe. The cross-sectional area of the bolus within the images frames may be determined by segmenting each image frame by thresholding, creating a vessel mask, and creating a contrast mask by applying an element-wise AND operator to the thresholded image and the vessel mask. The cross-sectional area of the bolus for the image frames may be plotted on an area dilution curve. Various fits may be applied to and various points may be identified on the area dilution curve. The various fits and points may be used to determine the mean transit time.

An intravascular imaging device may include a shaft with proximal and distal end regions, and an imaging assembly movably disposed within the shaft. The imaging assembly may comprise a drive cable, a housing coupled to the drive cable's distal end, a transducer within the housing, and a coaxial cable extending through the drive cable and electrically coupled to the transducer. The coaxial cable may be electrically coupled to a connection point on an upper surface of the transducer and electrically coupled to the housing. The device may include different configurations of the coaxial cable, such as a first member electrically coupled to the connection point and a second member electrically coupled to the housing. The housing may have various regions, including a cavity for receiving the transducer.

The present disclosure provides to process intravascular images, such as intravascular ultrasound (IVUS) image frames, to detect stents represented in the images and to group detected stents into stent segments. The grouped stent segments can be visually represented as part of a graphical user interface (GUI) and a user can navigate through the stent segments via the GUI to review stent assessment information on a per stent segment basis.

A system includes a processor circuit in communication with an intraluminal imaging device and a laser atherectomy device. An intraluminal imaging procedure is performed within a lumen with the intraluminal imaging device. The processor circuit receives the intraluminal images acquired. The intraluminal images are analyzed to determine a tissue classification for each intraluminal image. One or more laser atherectomy settings are determined for each intraluminal image based on the tissue classification. The intraluminal images and corresponding tissue classifications and laser atherectomy settings are then associated with the location at which each intraluminal image was acquired along the lumen. A laser atherectomy procedure is then performed within the same lumen. As the laser atherectomy device is moved to positions within the vessel, the laser atherectomy setting associated with each position is retrieved from the memory and automatically applied to the laser atherectomy device.

To provide a suitable intravascular imaging display system.SOLUTION: An intravascular imaging display system having control circuitry and video output circuitry is provided. The video output circuit is configured to generate a display output including a user interface. The user interface includes a plurality of graphical elements associated with the vessel being imaged. The plurality of graphical elements includes a first detected feature portion defined by a first graphical indicator and a second detected feature portion defined by a second graphical indicator. The first graphic indicator is visually distinct from the second graphic indicator. The first detected feature portion and the second detected feature portion are assigned by the control circuit to indicate one or more locations along the vessel wall based on whether the attenuance of the ultrasound return signal exceeds a threshold.SELECTED DRAWING: Figure 1

An intravascular imaging device may include a shaft with proximal and distal end regions, and an imaging assembly movably disposed within the shaft. The imaging assembly may comprise a drive cable, a housing coupled to the drive cable's distal end, a transducer within the housing, and a coaxial cable extending through the drive cable and electrically coupled to the transducer. The coaxial cable may be electrically coupled to a connection point on an upper surface of the transducer and electrically coupled to the housing. The device may include different configurations of the coaxial cable, such as a first member electrically coupled to the connection point and a second member electrically coupled to the housing. The housing may have various regions, including a cavity for receiving the transducer.

Intravascular imaging devices as well as methods for making and using intravascular imaging devices are disclosed. An intravascular imaging device may include a catheter shaft including a hypotube region and an imaging window region. The hypotube region may include a slotted section having a plurality of slots formed therein. The slotted section may include a plurality of discrete zones including a first zone, a second zone disposed proximal of the first zone, a third zone disposed proximal of the second zone, a fourth zone disposed proximal of the third zone. An imaging core may be disposed within the catheter shaft.

To provide intraluminal ultrasound navigation guidance capable of accurate measurement and labeling, and related devices, systems, and methods.SOLUTION: Disclosed is an intraluminal ultrasound imaging system, comprising a processor circuit in communication with an intraluminal ultrasound imaging catheter, and configured to receive an intraluminal ultrasound image from the imaging catheter within a body lumen of a patient, the body lumen comprising a plurality of segments. The processor circuit is configured to identify a segment of the plurality of segments where the imaging catheter was located when the image was obtained, and output to a display a stylized figure of the body lumen including the plurality of segments, and an indicator identifying the segment in the stylized figure where the imaging catheter was located when the image was obtained.SELECTED DRAWING: Figure 5

The present disclosure provides for generating a graphical user interface to visually present stents detected from intravascular imaging frames and to provide navigation through the GUI among the plurality of detected stents to select one of the presented stents for evaluation. Furthermore, the present disclosure provides for updating the GUI to present evaluation metrics for the selected stent.

Systems and methods described herein relate to developing a virtual anatomical model of a coronary artery with specific conditions and related fluid properties, such as the velocity and viscosity of selected fluid, to provide accurate parameters for an intravascular imaging procedure. The resulting parameters may relate to the contrast agent volume, time for pullback of intravascular tool, and contrast agent injection force. The models may be patient specific, based on characteristics of a patient's artery. The systems and methods may be utilized for PCI planning, vascular device design and process optimization.

In exemplary examples, methods and systems for treating vascular disease by implanting a stent within the vasculature and using intravascular imaging to determine and ensure that the stent was property implanted and producing a desirable and effective results is disclosed herein. For example, a system may obtain optical shape sensing data and intravascular imaging data for a blood vessel. The system may process the optical shape sensing data and the intravascular imaging data to generate a three-dimensional model and image of the blood vessel immediately before and immediately after stent implantation into the blood vessel, and perform a precise comparison of the before and after images to ensure that the stent was properly implanted and will produce or is producing a desirable and effective result. The precise comparison may be based on a derived diameter associated with the location at which the stent is placed in the blood vessel based on the generated pre and post generated three-dimensional models.

A system is provided that includes a processor circuit in communication with an intravascular imaging catheter. The processor circuit is operable to: receive an intravascular imaging signal; perform, tissue characterization to identify a plaque component of the blood vessel; generate an intravascular image; receive an extravascular image of a blood vessel; co-register the intravascular image and the extravascular image to associate the intravascular image with a location of the blood vessel in the extravascular image; determine, if a spatial distribution of the plaque component within the intravascular image satisfies a criterion associated with the spatial distribution; and when the spatial distribution satisfies the criterion, output a screen display comprising: the extravascular image; and a first indicator at the location of the blood vessel in extravascular image. The first indicator is representative of the spatial distribution of the plaque component. Associated methods and devices are also provided.

The system includes a processor circuit that receives intravascular imaging data from the intravascular imaging catheter, x-ray images from the x-ray imaging device, and intravascular pressure data from the intravascular pressure-sensing guidewire. The processor circuit correlates the intravascular imaging data and the intravascular pressure data with positions along the body lumen indicated in the x-ray images. The processor circuit generates a longitudinal view of the body lumen based on the intravascular imaging data and outputs a screen display including the longitudinal view of the body lumen with a superimposed graphical representation corresponding to the intravascular pressure measurements.

Systems, devices, and methods for providing procedure-specific workflow guidance are provided. The workflow guidance may include providing selectable options on a display device to a user including a selectable option to select a target vessel and a prompt to move an intravascular imaging device within the selected target vessel. Imaging data is received from the intravascular imaging device within the selected target vessel. The workflow guidance may be used to identify an area of interest within the selected target vessel and automatically display vessel measurements corresponding with the area of interest on the display device.

The present invention provides intravascular imaging probes including a variety of material support members or bases, as well as related devices, systems, and methods. According to one embodiment, a lumenal intravascular ultrasound imaging catheter includes a flexible elongate member configured to be positioned within a body lumen of a patient, a support member coupled to a distal portion of the flexible elongate member, and an ultrasound scanner assembly positioned about the support member. The support member includes a hollow interior member comprising a first material, and a first annular member positioned about a periphery of the hollow interior member at a proximal portion of the hollow interior member. The first annular member extends radially outward from the hollow interior member and comprises a second material different from the first material.

In part, this invention relates to an automated method for detecting branching vessels in intravascular imaging using intravascular modal imaging such as OCT, IVUS, or other imaging modalities. In one embodiment, representations of A-lines and frames generated by the intravascular imaging system are used to identify candidate branches of the vessel. One or more operators (such as filters) can be applied to remove false positives associated with other detections.

One or more devices, systems, methods and storage mediums for performing photo-bleaching and / or performing intravascular imaging and / or optical coherence tomography (OCT) while detecting and / or characterizing one or more tissues are provided. Examples of applications include imaging, evaluating and diagnosing biological objects, such as, but not limited to, for Gastro-intestinal, cardio and / or ophthalmic applications, and being obtained via one or more optical instruments, such as, but not limited to, optical probes, catheters, capsules and needles (e.g., a biopsy needle). Preferably, the intravascular imaging devices, systems, methods, and storage mediums involve photo-bleaching feature(s) and / or include or involve a method, such as, but not limited to, using one or more images to detect and / or characterize the one or more tissues and / or to perform coregistration. Photo-bleached devices or systems may be used for improved imaging, including for fluorescence devices or systems.