Accuracy of four-dimensional phase-contrast velocity mapping for blood flow visualizations: a phantom study

Accuracy of four-dimensional phase-contrast velocity mapping for blood flow visualizations: a phantom study

Accuracy of four-dimensional phase-contrast velocity mapping for blood flow visualizations: a phantom study

Accuracy of four-dimensional phase-contrast velocity mapping for blood flow visualizations: a phantom study.

BACKGROUND Time-resolved three-dimensional, three-directional phase-contrast magnetic resonance velocity mapping (4D PC-MRI) is a powerful technique to depict dynamic blood flow patterns in the human body. However, the impact of phase background effects on flow visualizations has not been thoroughly studied previously, and it has not yet been experimentally demonstrated to what degree phase off...

Computational simulations of nanoparticle transport in a three-dimensional capillary network

Objective(s): Multifunctional nanomedicine is the new generation of medicine, which is remarkably promising and associated with the minimum toxicity of targeted therapy. Distribution and transport of nanoparticles (NPs) in the blood flow are essential to the evaluation of delivery efficacy. Materials and Methods: In the present study, we initially designed a phantom based on Murray’s mini...

Accuracy and limitations of vector flow mapping: left ventricular phantom validation using stereo particle image velocimetory

BACKGROUND The accuracy of vector flow mapping (VFM) was investigated in comparison to stereo particle image velocimetry (stereo-PIV) measurements using a left ventricular phantom. VFM is an echocardiographic approach to visualizing two-dimensional flow dynamics by estimating the azimuthal component of flow from the mass-conservation equation. VFM provides means of visualizing cardiac flow, but...