Vector Flow Imaging Compared with Pulse Wave Doppler for Estimation of Peak Velocity in the Portal Vein

Andreas Hjelm Brandt; Ramin Moshavegh; Kristoffer Lindskov Hansen; Thor Bechsgaard; Lars Lönn; Jørgen Arendt Jensen; Michael Bachmann Nielsen

doi:10.1016/j.ultrasmedbio.2017.10.015

Vector Flow Imaging Compared with Pulse Wave Doppler for Estimation of Peak Velocity in the Portal Vein

Andreas Hjelm Brandt^*, Ramin Moshavegh, Kristoffer Lindskov Hansen, Thor Bechsgaard, Lars Lönn, Jørgen Arendt Jensen, Michael Bachmann Nielsen

^*Corresponding author for this work

Copenhagen University Hospital Herlev and Gentofte

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The study described here investigated whether angle-independent vector flow imaging (VFI) technique estimates peak velocities in the portal vein comparably to pulsed wave Doppler (PWD). Furthermore, intra- and inter-observer agreement was assessed in a substudy. VFI and PWD peak velocities were estimated with from intercostal and subcostal views for 32 healthy volunteers, and precision analyses were conducted. Blinded to estimates, three physicians rescanned 10 volunteers for intra- and inter-observer agreement analyses. The precision of VFI and PWD was 18% and 28% from an intercostal view and 23% and 77% from a subcostal view, respectively. Bias between VFI and PWD was 0.57 cm/s (p = 0.38) with an intercostal view and 9.89 cm/s (p

Original language	English
Journal	Ultrasound in Medicine and Biology
Volume	44
Issue number	3
Pages (from-to)	593-601
ISSN	0301-5629
DOIs	https://doi.org/10.1016/j.ultrasmedbio.2017.10.015
Publication status	Published - 2018

Keywords

Abdominal ultrasound
Agreement analysis
Portal vein
Precision analysis
Pulsed wave Doppler
Vector flow imaging
Vector velocity

Access to Document

10.1016/j.ultrasmedbio.2017.10.015

OpenUrl availability

Full text

Cite this

@article{3f4e44db8b75495cb509b9bc55fa9015,

title = "Vector Flow Imaging Compared with Pulse Wave Doppler for Estimation of Peak Velocity in the Portal Vein",

abstract = "The study described here investigated whether angle-independent vector flow imaging (VFI) technique estimates peak velocities in the portal vein comparably to pulsed wave Doppler (PWD). Furthermore, intra- and inter-observer agreement was assessed in a substudy. VFI and PWD peak velocities were estimated with from intercostal and subcostal views for 32 healthy volunteers, and precision analyses were conducted. Blinded to estimates, three physicians rescanned 10 volunteers for intra- and inter-observer agreement analyses. The precision of VFI and PWD was 18% and 28% from an intercostal view and 23% and 77% from a subcostal view, respectively. Bias between VFI and PWD was 0.57 cm/s (p = 0.38) with an intercostal view and 9.89 cm/s (p ",

keywords = "Abdominal ultrasound, Agreement analysis, Portal vein, Precision analysis, Pulsed wave Doppler, Vector flow imaging, Vector velocity",

author = "Brandt, {Andreas Hjelm} and Ramin Moshavegh and Hansen, {Kristoffer Lindskov} and Thor Bechsgaard and Lars L{\"o}nn and Jensen, {J{\o}rgen Arendt} and Nielsen, {Michael Bachmann}",

year = "2018",

doi = "10.1016/j.ultrasmedbio.2017.10.015",

language = "English",

volume = "44",

pages = "593--601",

journal = "Ultrasound in Medicine and Biology",

issn = "0301-5629",

publisher = "Elsevier",

number = "3",

}

TY - JOUR

T1 - Vector Flow Imaging Compared with Pulse Wave Doppler for Estimation of Peak Velocity in the Portal Vein

AU - Brandt, Andreas Hjelm

AU - Moshavegh, Ramin

AU - Hansen, Kristoffer Lindskov

AU - Bechsgaard, Thor

AU - Lönn, Lars

AU - Jensen, Jørgen Arendt

AU - Nielsen, Michael Bachmann

PY - 2018

Y1 - 2018

N2 - The study described here investigated whether angle-independent vector flow imaging (VFI) technique estimates peak velocities in the portal vein comparably to pulsed wave Doppler (PWD). Furthermore, intra- and inter-observer agreement was assessed in a substudy. VFI and PWD peak velocities were estimated with from intercostal and subcostal views for 32 healthy volunteers, and precision analyses were conducted. Blinded to estimates, three physicians rescanned 10 volunteers for intra- and inter-observer agreement analyses. The precision of VFI and PWD was 18% and 28% from an intercostal view and 23% and 77% from a subcostal view, respectively. Bias between VFI and PWD was 0.57 cm/s (p = 0.38) with an intercostal view and 9.89 cm/s (p

AB - The study described here investigated whether angle-independent vector flow imaging (VFI) technique estimates peak velocities in the portal vein comparably to pulsed wave Doppler (PWD). Furthermore, intra- and inter-observer agreement was assessed in a substudy. VFI and PWD peak velocities were estimated with from intercostal and subcostal views for 32 healthy volunteers, and precision analyses were conducted. Blinded to estimates, three physicians rescanned 10 volunteers for intra- and inter-observer agreement analyses. The precision of VFI and PWD was 18% and 28% from an intercostal view and 23% and 77% from a subcostal view, respectively. Bias between VFI and PWD was 0.57 cm/s (p = 0.38) with an intercostal view and 9.89 cm/s (p

KW - Abdominal ultrasound

KW - Agreement analysis

KW - Portal vein

KW - Precision analysis

KW - Pulsed wave Doppler

KW - Vector flow imaging

KW - Vector velocity

U2 - 10.1016/j.ultrasmedbio.2017.10.015

DO - 10.1016/j.ultrasmedbio.2017.10.015

M3 - Journal article

C2 - 29223701

SN - 0301-5629

VL - 44

SP - 593

EP - 601

JO - Ultrasound in Medicine and Biology

JF - Ultrasound in Medicine and Biology

IS - 3

ER -

Vector Flow Imaging Compared with Pulse Wave Doppler for Estimation of Peak Velocity in the Portal Vein

Abstract

Keywords

Access to Document

OpenUrl availability

Fingerprint

Cite this