PATIENT-SPECIFIC AUTOMATED TUNING OF BOUNDARY CONDITIONS FOR DISTAL VESSEL TREE

摘要

Boundary conditions for a distal vessel tree are modeled and tuned to a specific patient. Measurements from the patient are used to find reference compliance and resistance for the root of the distal vessel tree model. The reference compliance and resistance are used to tune properties of a structured tree model, such as by iteratively solving for the properties while matching the compliance and resistance of the structured tree model to the patient-specific reference compliance and reference resistance. The tuned structured tree is then used to calculate boundary conditions for computing flow of a scanned vessel of the patient.

主权项

1. A method for automated tuning of boundary conditions for a distal vessel tree, the method comprising:
acquiring scan data representing a vessel of a patient and one or more outlets of the vessel; modeling a distal vessel tree structure; tuning the modeling as a function of a match with one or more characteristics of the patient; determining, from the tuning, one or more boundary conditions for the respective one or more outlets based on a relationship between flow and pressure; computing a blood flow quantity for the vessel of the patient as a function of the boundary conditions; and displaying the blood flow quantity.