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AssigneesGeneral Electric Company, Jasbir S. Sra
InventorsRégis Vaillant, Jasbir Singh Sra, Jean Cousty, François Kotian
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An imaging system for use in a medical intervention procedure is disclosed. A first image acquisition system of a first modality employing a catheter at an anatomical region of a patient is configured to produce a first image of the anatomical region using fluoroscopy, the first image comprising a set of fluoroscopy projection images. A second image acquisition system of a second different modality is configured to generate a 3D model of the anatomical region. An anatomical reference system is common to both the first and second image acquisition systems. A processing circuit is configured to process executable instructions for registering the 3D model with the fluoroscopy image in response to the common reference system and discernible parameters associated with the catheter in both the first and second image acquisition systems.
An imaging system for use in a medical intervention procedure, comprising:
A method of registering a 3D model of an anatomical region of a patient with projection images of the same from an interventional fluoroscopy system, the method comprising:
A computer program product for registering a 3D model of an anatomical region of a patient with projection images of the same from an interventional fluoroscopy system, the product comprising:
An imaging system for use in a medical intervention procedure, comprising
A computer program product for registering a 3D model of an anatomical region of a patient with projection images of the same from an interventional fluoroscopy system, the product comprising:
Dependencies are inferred from the claim text.
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Computed tomography [CT]: transmission computed tomography [CT]
Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment: arrangements…
Displaying means of special interest: adapted to display 3D data
Specially adapted for specific body parts; specially adapted for specific clinical applications: for diagnosis of the heart
Term ended 14 Jul 2026 (estimated)
This invention relates generally to a medical imaging system, and more particularly to a method and apparatus for registering 3D models of anatomical regions with projection images of the same.
During a number of interventional procedures related to the improvement of electrical therapy in the heart, the physician has to manipulate catheters and/or leads inside the heart chambers. An example of the two most complex and common procedures include atrial fibrillation (AF) ablation, and bi-ventricular pacing.
Atrial fibrillation, an arrhythmia in which the atria (upper chambers of the heart) stop contracting as they fibrillate, is the most common of the heart rhythm problems. In United States alone it is estimated that there are over 2 million people who have atrial fibrillation. Present data suggest that it is the most common arrhythmia-related cause of hospital admissions. Patients with AF tend to have a high incidence of such complications as stroke and congestive heart failure. Premature atrial contractions may act as triggers and initiate paroxysms of AF. These premature atrial contractions have been shown to predominantly originate in the pulmonary veins from the left atrium. Since infrequent and non reproducible premature atrial contractions may limit the utility of ablating trigger sites, a variety of surgical and catheter techniques have been used to isolate the pulmonary veins from the left atrium.
Referring now to the figures, which are exemplary embodiments, and wherein like elements are numbered alike:
FIG. 1 depicts a generalized schematic of an imaging system for use in a medical intervention procedure;
FIG. 2 depicts an expanded view of a portion of the system of FIG. 1;
By using the imaging capabilities of the CT and registering these images with X-ray fluoroscopy images, pulmonary veins and other areas involved with initiating and sustaining AF may be more precisely and easily isolated, thereby improving the success rate from a radiofrequency catheter procedure.
Embodiments of the invention disclosed herein provide also a system and method by which 3D models of anatomical structures, such as the coronary sinus and left ventricle for example, may be registered with fluoroscopy images, thereby allowing the pacing and/or defibrillation leads to be navigated and placed at the most appropriate site, which should assist in improving the effectiveness of Bi-V or LV pacing.
Further embodiments of the invention include using the motion of the catheter placed in the coronary sinus to help appropriate registration and to determine and synchronize the movement of the 3D model of the heart chamber with the catheter movement.