Phase-sensitive lateral motion estimator for measurement of artery-wall displacement--phantom study

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Hideyuki Hasegawa, Hiroshi Kanai

Abstract

Artery-wall motion due to the pulsation of the heart is often measured to evaluate mechanical properties of the arterial wall. Such motion is thought to occur only in the arterial radial direction because the main source of the motion is an increase of blood pressure. However, it has recently been reported that the artery also moves in the longitudinal direction. Therefore, a 2-D motion estimator is required even when the artery is scanned in the longitudinal direction because the arterial wall moves both in the radial (axial) and longitudinal (lateral) directions. Methods based on 2-D correlation of RF echoes are often used to estimate the lateral displacement together with axial displacement. However, these methods require much interpolation of the RF echo or correlation function to achieve a sufficient resolution in the estimation of displacement. To overcome this problem, Jensen et al. modulated the ultrasonic field in the lateral direction at a designed spatial frequency to use the lateral phase for the estimation of lateral motion. This method, namely, the lateral modulation method, generates complex signals whose phases change depending on the lateral motion. Therefore, the lateral displacement can be estimated with a go...Continue Reading

References

Jan 1, 1992·Ultrasound in Medicine & Biology·T LänneP Dahl
Jan 1, 1985·Ultrasound in Medicine & Biology·A P HoeksR S Reneman
Feb 1, 1994·Journal of Biomechanics·H M LoreeR T Lee
Jan 1, 1997·Ultrasound in Medicine & Biology·C L de KorteC T Lancée
May 5, 2000·Ultrasound in Medicine & Biology·J OphirT Varghese
Aug 23, 2001·Ultrasound in Medicine & Biology·J M MeindersA P Hoeks
Oct 26, 2005·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Magnus CinthioKjell Lindström
Feb 5, 2008·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·J A Jensen, P Munk
Nov 7, 2008·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Hideyuki Hasegawa, Hiroshi Kanai
Jan 8, 2009·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Hideyuki Hasegawa, Hiroshi Kanai

❮ Previous
Next ❯

Citations

Aug 7, 2012·Interface Focus·Chris L de KorteAnton F W van der Steen
Dec 17, 2009·Ultrasonics·H LiebgottP Delachartre
Feb 4, 2014·Journal of Biomechanics·H H G HansenC L de Korte
Sep 1, 2016·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Stein FekkesChris L de Korte
Nov 5, 2016·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Brecht HeydeGregg E Trahey

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

IEEE Transactions on Medical Imaging
Roch L MauriceGuy Cloutier
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Sanghamithra KorukondaMarvin M Doyley
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Matilda LarssonJan D'hooge
© 2022 Meta ULC. All rights reserved