Blood Vessel Cross-Section Modeling for Pressure Difference Accuracy

The patent segments the blood vessel modeling process into multiple components: obtaining image data, generating spatial models at different positions, establishing cross-section models at multiple time points, and integrating plaque characteristics. This segmentation allows each component to be processed independently and systematically, improving overall modeling accuracy while managing complexity through structured decomposition.

The patent performs preliminary actions by first obtaining image data and generating spatial models before calculating blood flow pressure differences. Cross-section models are established at multiple time points in advance, and plaque characteristics are identified beforehand, so that when pressure difference calculation is needed, all necessary data and models are already prepared, improving accuracy without adding computational complexity during the final calculation phase.

The patent merges multiple cross-section models obtained at different time points during the cardiac cycle into a comprehensive model. By combining information from multiple time points, the method captures the dynamic changes of blood vessels throughout the cardiac cycle, significantly improving modeling accuracy. The merging process integrates spatial and temporal information to create a more complete representation of blood vessel geometry.

The patent applies periodic action by obtaining image data and generating cross-section models at multiple specific time points within the periodic cardiac cycle. This periodic sampling captures the rhythmic changes in blood vessel geometry that occur with each heartbeat, ensuring that the model reflects the true dynamic behavior of the vessels without requiring continuous imaging.

The patent applies local quality by specifically incorporating plaque characteristics into the cross-section models at the locations where plaques are present, rather than uniformly complicating the entire modeling process. The method identifies plaque regions and enhances the modeling detail locally in those areas, improving pressure difference calculation accuracy where it matters most while keeping the rest of the modeling process relatively simple.

The patent introduces cross-section models as intermediary structures that bridge the gap between simple imaging data and complex hemodynamic calculations. These intermediary models incorporate plaque characteristics and serve as a mediator that translates image data into accurate pressure difference calculations, simplifying the overall process while improving accuracy.