| Patent application number | Description | Published |
|---|
| 20100061611 | CO-REGISTRATION OF CORONARY ARTERY COMPUTED TOMOGRAPHY AND FLUOROSCOPIC SEQUENCE - A method for displaying real-time imagery of coronary arteries including a chronic total occlusion (CTO) includes acquiring three-dimensional image data of coronary arteries using a three-dimensional medical imaging device, wherein the three-dimensional image data includes imagery of the CTO. A radiocontrast agent is administered to a patient. Real-time image data of the coronary arteries are acquired using one or more fluoroscopes. The real-time image data does not include imagery of the CTO and down-stream vessel structure. The three-dimensional image data is co-registered with the real-time image data using an image processing device within a vicinity of the CTO. The co-registered image data are displayed in real-time using a display device to accurately illustrate the location of the CTO within the context of the real-time image data. | 03-11-2010 |
| 20100272315 | Automatic Measurement of Morphometric and Motion Parameters of the Coronary Tree From A Rotational X-Ray Sequence - Automatic measurement of morphometric and motion parameters of a coronary target includes extracting reference frames from input data of a coronary target at different phases of a cardiac cycle, extracting a three-dimensional centerline model for each phase of the cardiac cycle based on the references frames and projection matrices of the coronary target, tracking a motion of the coronary target through the phases based on the three-dimensional centerline models, and determining a measurement of morphologic and motion parameters of the coronary target based on the motion. | 10-28-2010 |
| 20100290685 | FUSION OF 3D VOLUMES WITH CT RECONSTRUCTION - A method for registration of ultrasound device in three dimensions to a C-arm scan, the method including acquiring a baseline volume, acquiring images in which the ultrasound device is disposed, locating the device within the images, registering the location of the device to the baseline volume, acquiring an ultrasound volume from the ultrasound device, registering the ultrasound volume to the baseline volume, and performing fusion imaging to display a view of the ultrasound device in the baseline volume. | 11-18-2010 |
| 20100310140 | METHOD OF COMPENSATION OF RESPIRATORY MOTION IN CARDIAC IMAGING | 12-09-2010 |
| 20110052035 | Vessel Extraction Method For Rotational Angiographic X-ray Sequences | 03-03-2011 |
| 20110069063 | CATHETER RF ABLATION USING SEGMENTATION-BASED 2D-3D REGISTRATION - A method for registering a two-dimensional image of a cardiocirculatory structure and a three-dimensional image of the cardiocirculatory structure includes acquiring a three-dimensional image including the cardiocirculatory structure using a first imaging modality. The acquired three-dimensional image is projected into two-dimensions to produce a two-dimensional projection image of the cardiocirculatory structure. A structure of interest is segmented either from the three-dimensional image prior to projection or from the projection image subsequent to projection. A two-dimensional image of the cardiocirculatory structure is acquired using a second imaging modality. The structure of interest is segmented from the acquired two-dimensional image. A first distance map is generated based on the two-dimensional projection image and a second distance map is generated based on the acquired two-dimensional image. A registration of the three-dimensional image and the two-dimensional image is performed by minimizing a difference between the first and second distance maps. | 03-24-2011 |
| Patent application number | Description | Published |
|---|
| 20080219536 | REGISTRATION OF CT VOLUMES WITH FLUOROSCOPIC IMAGES - A method for registering images of multiple modalities includes acquiring first image of a subject using a first modality. A second image of the subject is acquired using a second modality. The first image includes greater structural detail of the subject than the second image and the second image is a video image including multiple image frames. The first and second images are registered based on an anatomical structure observable in the first image and a foreign object proximate to the anatomical structure observable in the second image. | 09-11-2008 |
| 20080270095 | METHOD AND APPARATUS FOR INTERACTIVE 4-DIMENSIONAL (4D) VIRTUAL ENDOSCOPY - A method of performing 4-dimensional virtual endoscopy includes acquiring a sequence of cardiac images of a patient's heart from an imaging device; acquiring an electrocardiographic signal exhibiting cardiac cycles of the heart; and utilizing the electrocardiographic signal to gate the images for deriving respective 3-dimensional views in succession at corresponding cardiac cycles, from respective cardiac images at a selected phase point common to each of the corresponding cardiac cycles. | 10-30-2008 |
| 20080275467 | Intraoperative guidance for endovascular interventions via three-dimensional path planning, x-ray fluoroscopy, and image overlay - A method for planning a path for an endovascular intervention includes acquiring and displaying 3D angiographic images; selecting a target on the displayed images; extracting a skeleton of a vascular tree from the displayed images; extracting a symbolic vessel path to the target based on the skeleton of the vascular tree; and overlaying and displaying the symbolic vessel path on 2D fluoroscopic images for guiding the endovascular intervention. | 11-06-2008 |
| 20090088830 | SYSTEM AND METHOD FOR INTRAOPERATIVE GUIDANCE OF STENT PLACEMENT DURING ENDOVASCULAR INTERVENTIONS - A method for guiding stent deployment during an endovascular procedure includes providing a virtual stent model of a real stent that specifies a length, diameter, shape, and placement of the real stent. The method further includes projecting the virtual stent model onto a 2-dimensional (2D) DSA image of a target lesion, manipulating a stent deployment mechanism to navigate the stent to the target lesion while simultaneously acquiring real-time 2D fluoroscopic images of the stent navigation, and overlaying each fluoroscopic image on the 2D DSA image having the projected virtual stent model image, where the 2D fluoroscopic images are acquired from a C-arm mounted X-ray apparatus, and updating the projection of the virtual stent model onto the fluoroscopic images whenever a new fluoroscopic image is acquired or whenever the C-arm is moved, where the stent is aligned with the virtual stent model by aligning stent end markers with virtual end markers. | 04-02-2009 |
| 20090092298 | METHOD FOR FUSING IMAGES ACQUIRED FROM A PLURALITY OF DIFFERENT IMAGE ACQUIRING MODALITIES - A method for fusing a plurality of images. The method includes: acquiring the plurality of images from a plurality of different modalities, each one of the images having a different reference space; and fusing the plurality of images into a common reference space, such common reference space being different from the reference space of each one of the plurality of acquired images. Thus, with such method, a unified process is provided for handling fusion across multiple clinical interventional and/or surgery (i.e., intra-operative) procedures. | 04-09-2009 |
| 20090141968 | CORONARY RECONSTRUCTION FROM ROTATIONAL X-RAY PROJECTION SEQUENCE - A method for three-dimensional reconstruction of a branched object from a rotational sequence of images of the branched object includes segmenting the branched object from each image of the sequence, extracting centerlines of the branched object, performing symbolic reconstruction via a stereo correspondence matching between the centerlines from different views of the sequence of images using a graph cut-based optimization, and creating a three-dimensional tomographic reconstruction of the branched object compensated for motion of the branched object between the images of the sequence. | 06-04-2009 |
| 20090214097 | METHOD FOR GENERATING ANALYTICAL TOOL FOR ANALYZING ABNORMALITIES IN HUMAN ORGANS - A method for providing a tool for analyzing an abnormality affixed to a human organ. The method includes: obtaining an image of the organ with the abnormality; separating the image of the abnormality from the image of the organ with the abnormality; mapping a surface of the separated image of the abnormality onto a homeomorphic equivalent template, such template being topologically equivalent to the surface. In one embodiment, the mapping is a continuous, bijective, mapping having a continuous inverse mapping characteristic. | 08-27-2009 |
