Abstract:
The invention relates to systems and methods for three dimensional imaging of tissue. The invention provides systems and methods to provide a representation of tissue from three-dimensional data that includes intravascular imaging data as well as data representing a shape of the intravascular imaging probe. Device of the invention combine a shape-sensing mechanism with an intravascular intervention catheter.
Abstract:
The present invention generally relates to optical circuits for mitigating power loss in medical imaging systems and methods for using such circuits. Circuits of the invention can involve a first optical path, a second optical path, and a means for recombining an optical signal transmitted through the first and second optical paths by sequentially gating the first and second optical paths to a single output.
Abstract:
The invention generally relates to an optical coherence tomography system that is reconfigurable between two different imaging modes and methods of use thereof.
Abstract:
Devices and methods of the invention provide for imaging an object within a body lumen. In certain aspects, a device for intraluminal imaging of the invention includes an elongate body defining a longitudinal axis, and a linear-array of imaging elements located on the body along the longitudinal axis.
Abstract:
The invention provides systems and methods for assessing the vasculature of a subject. In certain aspects, systems and methods of the invention involve receiving functional flow data of a subject via a data collector co-located with a radiopaque label, receiving imaging data of the vasculature including the radiopaque label, generating a vasculature map corresponding to the functional flow data, and displaying the vasculature map image on a monitor.
Abstract:
The invention relates to medical intervention systems with integrated imaging and microsurgery subsystems, in which the microsurgery subsystem employs hardware that is used for imaging in the imaging subsystem to provide a stabilization feedback loop to prevent unwanted vibrations or motions in a microsurgery tool.
Abstract:
The invention relates to systems and methods for the operation of three-dimensional imaging systems. Systems and methods of the invention are operable to display an image of tissue, receive a selection of points from within the image, establish a boundary corresponding to the selected points, and capture a three-dimensional image of the tissue within the designated boundary
Abstract:
This invention relates generally to the detection of objects, such as stents, within intraluminal images using principal component analysis and/or regional covariance descriptors. In certain aspects, a training set of pre-defined intraluminal images known to contain an object is generated. The principal components of the training set can be calculated in order to form an object space. An unknown input intraluminal image can be obtained and projected onto the object space. From the projection, the object can be detected within the input intraluminal image. In another embodiment, a covariance matrix is formed for each pre-defined intraluminal image known to contain an object. An unknown input intraluminal image is obtained and a covariance matrix is computed for the input intraluminal image. The covariances of the input image and each image of the training set are compared in order to detect the presence of the object within the input intraluminal image.
Abstract:
Systems and methods for aiding users in viewing, assessing and analyzing images, especially images of lumens and medical devices contained within the lumens. Systems and methods for interacting with images of lumens and medical devices, for example through a graphical user interface.