Estimation methods for flow imaging with high frequency ultrasound

Autor: Didier Vray, F.S. Foster, Walid Aoudi, Victor X. D. Yang, Herve Liebgott, Andrew Needles
Přispěvatelé: Centre de Recherche et d'Application en Traitement de l'Image et du Signal (CREATIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Supérieure Chimie Physique Électronique de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Imagerie Ultrasonore, Centre de Recherche en Acquisition et Traitement de l'Image pour la Santé (CREATIS), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Hospices Civils de Lyon (HCL)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Hospices Civils de Lyon (HCL)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2006
Předmět:
Acoustics and Ultrasonics
[SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging
Tracking (particle physics)
Sensitivity and Specificity
[SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph]
[PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph]
Speckle pattern
Imaging
Three-Dimensional
Optics
[INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing
[SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph]
Image Interpretation
Computer-Assisted
[INFO.INFO-IM]Computer Science [cs]/Medical Imaging
Perpendicular
[PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph]
Ultrasonography
Doppler
Color
Decorrelation
[SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]
Physics
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Mechanics of the fluids [physics.class-ph]
Phantoms
Imaging
business.industry
Plane (geometry)
[SPI.MECA.BIOM]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Biomechanics [physics.med-ph]
Reproducibility of Results
Arteries
Blood flow
Image Enhancement
[PHYS.MECA.ACOU]Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph]
Flow (mathematics)
[INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV]
[SDV.IB]Life Sciences [q-bio]/Bioengineering
Vector field
business
[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing
Algorithms
Blood Flow Velocity
Zdroj: Ultrasonics
Ultrasonics, Elsevier, 2006, 44, pp.135--140
ISSN: 0041-624X
DOI: 10.1016/j.ultras.2006.06.025
Popis: This article proposes to estimate slow blood flow with high frequency ultrasound imaging. The proposed technique combines 2 methods. First, a statistical method, called Speckle Flow Imaging (SFI) based on the analysis of changes in the speckle pattern along time, gives an index directly related to the total velocity vector. Secondly, a block matching approach estimates the in-plane velocity components. Results on calibrated flow sequences of blood mimicking fluid have shown good agreement with the statistical model. The quantification of flow is achieved with pulsed flow and is also angle independent when the flow is perpendicular to the ultrasound beam. Speckle Tracking has been evaluated on the same data and has shown good estimation of the in-plane velocity vector when the component of velocity perpendicular to the imaging plane is inferior to 1 mm/s. The results of these two methods permit the evaluation of the total 3D velocity field and the orthogonal velocity component relative to the imaging plane. This allows the quantification of blood flow (volumetric per time unit across the sequence).
Databáze: OpenAIRE
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