Left atrial appendage assessment method
AssigneeSiemens Medical Solutions USA, Inc.
InventorsGareth Funka-Lea, Athira Jane Jacob, Paul Klein
Life of this patent
Estimating the term…
Abstract
Systems and methods for left atrial appendage closure device specification from two dimensional (2D) Intracardiac Echo imaging (ICE). In an imaging procedure, 2D ICE is used to acquire images of the left atrium of a patient. A model of the left atrium is generated from the images of the left atrium. The model of the left atrium is used to validate subsequent imaging of the left atrial appendage of the patient. Anatomical measurements from the validated subsequent imaging may be used to select or specify a left atrial appendage closure device in order to, for example, treat atrial fibrillation patients.
Claims12
A method for left atrial appendage assessment, the method comprising:
- acquiring a plurality of images of a left atrium of a patient;
- generating a model of the left atrium from the plurality of images of the left atrium;
- acquiring a plurality of images of a left atrial appendage of the patient;
- determining, based on the model, if the plurality of images of the left atrial appendage are sufficient to accurately estimate a specification of an appropriate left atrial appendage closure device by estimating a probability that a diameter of a left atrial appendage ostia has been measured to a predefined accuracy based on a geometric uncertainty in the model and a position of an image frame relative to the model;
- and
- computing and providing, when the probability meets a threshold, an anatomical measurement of the left atrial appendage or providing, when the probability does not meet the threshold, instructions for an operator to acquire additional images of the left atrial appendage, wherein the instructions identify a target catheter position to acquire a subsequent image and are based on one or more simulated alternative views generated from the model.
A non-transitory computer implemented storage medium that stores machine-readable instructions executable by at least one processor for left atrial appendage assessment, the machine-readable instructions comprising:
- acquiring a plurality of images of a left atrium of a patient;
- generating a model of the left atrium from the plurality of images of the left atrium;
- acquiring a plurality of images of a left atrial appendage of the patient;
- determining, based on the model, if the plurality of images of the left atrial appendage are sufficient to accurately estimate a specification of a left atrial appendage closure device by estimating a probability that a diameter of a left atrial appendage ostia has been measured to a predefined accuracy based on a geometric uncertainty in the model and a position of an image frame relative to the model;
- and
- computing and providing, when the plurality of images of the left atrial appendage are sufficient, an anatomical measurement of the left atrial appendage or providing, and when the plurality of images are not sufficient, instructions for an operator to acquire additional images of the left atrial appendage, wherein the instructions identify a target catheter position to acquire a subsequent image and are based on one or more simulated alternative views generated from the model.
Dependencies are inferred from the claim text.