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Related Experiment Video

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Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation
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Paediatric haemodynamic modelling: development and experimental validation using quantitative flow MRI.

Parvin Mohammadyari1, Giacomo Gadda2, Angelo Taibi1

  • 1Department of Physics and Earth Sciences, University of Ferrara, Via Giuseppe Saragat, 1, 44122, Ferrara, Italy.

European Radiology Experimental
|March 17, 2020
PubMed
Summary

This study developed a novel mathematical model for pediatric cardiovascular circulation, crucial for understanding congenital vascular disease. The model accurately simulates blood flow and pressure in the brain and neck for children.

Keywords:
Blood pressureCardiovascular systemComputer simulationHemodynamicsPediatrics

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Area of Science:

  • Biomedical Engineering
  • Cardiovascular Physiology
  • Pediatric Medicine

Background:

  • Congenital vascular disease is a major cause of death in children.
  • Existing hemodynamic research primarily focuses on adult circulation.
  • There is a critical need for specialized models of pediatric cardiovascular systems.

Purpose of the Study:

  • To develop and calibrate a mathematical model of cardiovascular circulation specifically for pediatric subjects.
  • To adapt and refine an existing adult circulation model for pediatric applications.
  • To calculate blood flow rates and pressures within the brain and neck vasculature of children.

Main Methods:

  • A computational model simulating 76 major arteries and veins in the brain and neck was developed.
  • Magnetic Resonance Imaging (MRI) data from 29 pediatric volunteers (aged 12 ± 5 years) were utilized.
  • Age-dependent physiological parameters (heart rate, flow rate, vessel area, blood pressure) were extracted and used for model calibration.

Main Results:

  • The model demonstrated an 88% correlation with MRI data.
  • Simulations showed a 16% decrease in mean internal jugular vein pressure in pediatric subjects compared to adults.
  • The study highlights age-related differences in vascular stiffness affecting blood flow and pressure.

Conclusions:

  • A validated mathematical model for pediatric head and neck blood circulation has been established.
  • The model offers detailed insights into both arterial and venous hemodynamics in children.
  • This tool can aid in the study of pediatric cardiovascular conditions and inform clinical practice.