ESTIMATION OF A MECHANICAL PROPERTY OF ANATOMY FROM MEDICAL SCAN DATA

摘要

A mechanical property of anatomy is estimated from a patient in vivo, such as estimating a patient-specific material property of a valve. A morphological model is used to determine anatomy dynamics. A biomechanical model, using the anatomy dynamics, predicts the dynamics, based, at least in part, on one or more material properties. Using an inverse solution based on comparison of dynamics predicted by the biomechanical model and the dynamics determined from the morphological model, values for the material properties are determined.

主权项

1. A method for estimating a mechanical property of anatomy, the method comprising:
estimating, by a processor, first anatomy locations of a valve of a patient from first medical imagedata of the patient at a first time; estimating, by the processor, second anatomy locations of the valve of the patient from second medical image data of the patient at a second time different than the first time, the second anatomy locations being for a same anatomy of the valve as the first anatomy locations; modeling, by the processor, the valve with a biomechanical model, which is a function of the mechanical property and a displacement of the first anatomy locations to the second anatomy locations; and inversely solving, by the processor, for a value of the mechanical property of the valve as a function of the biomechanical model and a similarity of the displacement with displacement output by the biomechanical model.