O. Bonnefous

Publications45
h-index12
Citations884
Highly Influential Citations23
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Time Domain Formulation of Pulse-Doppler Ultrasound and Blood Velocity Estimation by Cross Correlation
The Doppler effect is usually described as a frequency shift of the backscattered signals from moving targets with respect to the frequency transmitted. Recently, real-time blood flow imaging has… Expand
  • 314
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Measurement of the complete (3D) velocity vector of blood flows
  • O. Bonnefous
  • Physics
  • IEEE Ultrasonics Symposium Proceedings.
  • 2 October 1988
The transversal crossing of ultrasound beams by moving scatterers is studied to derive a process dedicated to transverse motion estimation. A 3D blood flow model is formulated, allowing the test of… Expand
  • 82
  • 5
Non invasive echographic techniques for arterial wall characterization
TLDR
The authors' goal is the definition of new vascular ultrasound modalities for the detection and the characterization of vascular diseases. Expand
  • 24
  • 2
A DSA-Based Method Using Contrast-Motion Estimation for the Assessment of the Intra-Aneurysmal Flow Changes Induced by Flow-Diverter Stents
BACKGROUND AND PURPOSE: Flow-diverter stents modify intra-aneurysmal blood flow and induce the progressive thrombosis of intracranial aneurysms followed by stable vascular reconstruction. The aim of… Expand
  • 77
  • 1
A New Velocity Estimator for Color Flow Mapping
Recently, real-time blood flow imaging became possible thanks to the development of a velocity estimator based on the phase-shift measurement of the successive echoes obtained from moving blood [ I].… Expand
  • 65
  • 1
Quantification of Internal Carotid Artery Flow with Digital Subtraction Angiography: Validation of an Optical Flow Approach with Doppler Ultrasound
BACKGROUND AND PURPOSE: Digital subtraction angiography is the reference standard technique to evaluate intracranial vascular anatomy and used on the endovascular treatment of vascular diseases. A… Expand
  • 33
  • 1
  • PDF
New TDI developments for vascular and cardiac applications
TLDR
Tissue Doppler imaging can show biomechanical properties of living tissues in both vascular and cardiac applications. Expand
  • 20
  • 1
Intra-Aneurysmal Flow Patterns: Illustrative Comparison among Digital Subtraction Angiography, Optical Flow, and Computational Fluid Dynamics
BACKGROUND AND PURPOSE: Digital subtraction angiography is the gold standard vascular imaging and it is used for all endovascular treatment of intracranial anerysms. Optical flow imaging has been… Expand
  • 17
  • 1
  • PDF
Blood flow and tissue motion with ultrasound for vascular applications
Abstract This paper provides a simple description of the fundamental principles of ultrasound vascular imaging. The mechanisms which govern the flow/pressure relationship are presented. The various… Expand
  • 12
  • 1
Arterial Wall Motion imaging: a new ultrasound approach to vascular characterization
Stroke, also known as cerebro-vascular accident (CVA), is the third leading cause of death and disability in the world. Treating the morbidity and mortality arising from stroke is estimated to… Expand
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