Adaptive Hybrid of Color Doppler and Ultrasound Speckle Image Velocimetry for the Accurate Measurement of Blood Flow
In this study, adaptive hybrid (AH) scheme is proposed to enhance the measurement accuracy of conventional CD method to acquire the 2-dimensional velocity field of blood flows. It can offer the assistance of the velocity field information measured preliminarily using ultrasound speckle image velocimetry (SIV) technique. Consequently, erroneous vectors in the CD results were replaced with the SIV results. The performance of the proposed AH method was validated by varying flow rate and insonation angle. We compared the AH method with the CD and SIV methods in an agarose vessel model. In vitro validation experiment demonstrated that the proposed AH method can measure a 2-dimensional velocity field with improved accuracy. In vivo validation was conducted for venous flow in the human great saphenous vein. These datasets offer the in vitro and in vivo experimental results for the validation of its performances. The AH method was confirmed by checking constant volumetric flow rate under in vivo conditions.
These datasets are calculated by using the program MATLAB R2017b (MathWorks corp.) and written down directly
- In vitro validation in accordance with flow rate.xlsx (19.42 kB)
- In vivo flow rate results in accordance with each location.xlsx (11.40 kB)
- in vivo velocity profile in accordance with each location.xlsx (42.01 kB)