Physically-constrained modeling of a heart in medical imaging

摘要

Physically-constrained modeling of a heart is provided. Patient-specific data may be used to estimate heart anatomy locations. A model is applied to the data for estimation. For increased accuracy of estimation, the biomechanics of the heart, such as the valve, may be used to constrain the estimation. By applying a dynamic system between estimated anatomy locations of different times, the locations may be deformed or refined. The modeled heart and/or valve may be used to estimate hemodynamics. The resulting velocities or other motion information may be used to emulate ultrasound Doppler imaging for comparing with acquired ultrasound Doppler data. The comparison may validate the modeling.

主权项

1. A method for physically-constrained imaging a heart, the method comprising:
acquiring first and second medical diagnostic data representing a patient with a medical scanner; estimating, with a processor, first anatomy locations of a valve of the patient from the first medical diagnostic data of the patient at a first time; estimating, with the processor, second anatomy locations of the valve of the patient from the second medical diagnostic data of the patient at a second time different than the first time; altering the first anatomy locations for the first time as a function of the second anatomy locations and a biomechanical model relating physical mechanics of the valve from the first and second times; altering the second anatomy locations for the second time as a function of the first anatomy locations and the biomechanical model; and generating an image as a function of the altered first or second anatomy locations.