| 摘要 |
<p>A method for defining a three-dimensional surface of at least a portion of a patient's heart, based on data obtained by ultrasound imaging of the heart. The imaging is carried out over at least one cardiac cycle and provides a plurality of images in different image planes made with an ultrasound transducer (46) at known positions and orientations. At least three anatomical landmarks in these images are manually identified in each of the images. An ultrasound mesh model in which a three-dimensional abstract mesh defining an archetype shape (200) for a population of other hearts is developed. This abstract mesh has associated with it a covariance (204) that defines the extend of variation of control vertices in the mesh for the population of training data used to derive the mesh model (26). The mesh model (26) is rigidly aligned with the images of the patient's heart (190).</p> |
