Key result
A constrained dynamic time warping model for IVUS effectively measured transverse and axial blood flow velocities up to 75.5 cm/s with a spatial resolution of up to 10 μm.
Why the study?
Accurately measuring transverse and axial blood flow velocities in small, deeply embedded blood vessels remains a significant challenge.
Population
Microchannel with a 3 mm inner diameter
Comparison
Triangular constrained dynamic time warping model with cumulative decorrelation using a 50 MHz IVUS system
Design
In vitro validation study
Authors
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Offers a proof-of-concept for advanced IVUS hemodynamic assessment; leaves open.
A novel constrained dynamic time warping model for IVUS signals enables highly accurate, high-resolution measurement of transverse and axial blood flow velocities in an in vitro model.
Shi et al. (2025) studied this question. Constrained dynamic time warping and cumulative decorrelation of IVUS signals vs. Traditional decorrelation methods was evaluated on Transverse and axial blood flow velocities and velocity profiles. A constrained dynamic time warping model for IVUS effectively measured transverse and axial blood flow velocities up to 75.5 cm/s with a spatial resolution of up to 10 μm.
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