Blood flow study in a stenosed carotid bifurcation
The goal of this work is the use of anatomically realistic blood flow simulations by the finite element method derived from in vivo medical imaging to obtain patient-specific flow phenomena associated with the atherosclerosis disease. A good agreement between ultrasound imaging data and computational simulated results was achieved.
Structured mesh generation from doppler ultrasound images
Non-invasive ultrasound imaging of human arteries is a widely form used for medical diagnosis of arterial diseases, like atherosclerosis. The objective of this paper is to present a methodology for patient-specific construction of a structured mesh of the carotid artery bifurcation from images obtained with Doppler ultrasound techniques.
Comparison of different methods of heart rate entropy analysis during acute anoxia superimposed on a chronic rat model of pulmonary hypertension
Acute life-threatening situations are particularly critical when superimposed on chronic diseases. The objective of this study was the assessment of heart rate (HR) dynamics during episodes of acute anoxia superimposed on a rat model of chronic pulmonary hypertension. In 10 adult Wistar rats, five weeks after pulmonary hypertension induction with Monocrotaline, we analysed eight 1-min HR segments, during episodes of baseline, mechanical ventilation and acute anoxia, using linear indices, appr...