The Effects of Positioning on the Volume/Location of the Internal Jugular Vein Using 2-Dimensional Tracked Ultrasound

Wang, Wanyu; Liao, Xinyang; Chen, Elvis C. S.; Moore, John; Baxter, Jamie; Peters, Terry M.; Bainbridge, Daniel

doi:10.1053/j.jvca.2019.08.049

Cited by 7 publications

(14 citation statements)

References 33 publications

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“…No previous study has compared CSA between men and women during acute manipulations of central blood volume; however, the loss of separation at the final stage of LBNP was likely due to a floor effect as the smaller male veins approached collapse prior to those of the women. Between study differences in resting IJV might be the result of the variable geometry along the length of the IJV (Wang et al, 2020 ) and requires further study. In addition, possible mechanisms for differences observed between men and women in CSA should be further explored, especially considering research has previously suggested distensibility was similar between men and women (Mortensen et al, 1990 ).…”

Section: Discussionmentioning

confidence: 99%

“…Internal jugular vein (IJV) volume is an important indicator of central blood volume and venous congestion in physiological manipulations, spaceflight, and pathological conditions such as heart failure (Arbeille et al, 2015 ; Pellicori et al, 2021 ; Wang et al, 2020 ). Regular monitoring of IJV volume may help guide treatment of hypovolemic and hypervolemic conditions (Antonelli et al, 2007 ; Pellicori, Kaur, et al, 2015 ).…”

Section: Introductionmentioning

confidence: 99%

“…The most common surrogate for IJV volume is vessel cross‐sectional area (CSA) measured with 2D ultrasound, though 3D ultrasound techniques have also been developed (Arbeille et al, 2017 ; Groves et al, 2020 ). Importantly, however, while venous ultrasound is non‐invasive, its reproducibility is sensitive to anatomical location (Wang et al, 2020 ) and hold down pressure, thus requiring a trained operator and limiting the clinical utility to acute‐care settings. Recent advances in optical imaging have enabled non‐contact jugular venous assessment to help alleviate these barriers.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Sex‐dependent jugular vein optical attenuation and distension during head‐down tilt and lower body negative pressure

Patterson

Amelard

Saarikoski

et al. 2022

Physiological Reports

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Non‐contact coded hemodynamic imaging (CHI) is a novel wide‐field near‐infrared spectroscopy system which monitors blood volume by quantifying attenuation of light passing through the underlying vessels. This study tested the hypothesis that CHI‐based jugular venous attenuation (JVA) would be larger in men, and change in JVA would be greater in men compared to women during two fluid shift challenges. The association of JVA with ultrasound‐based cross‐sectional area (CSA) was also tested. Ten men and 10 women completed three levels of head‐down tilt (HDT) and four levels of lower body negative pressure (LBNP). Both JVA and CSA were increased by HDT and reduced by LBNP (all p < 0.001). Main effects of sex indicated that JVA was higher in men than women during both HDT ( p = 0.003) and LBNP ( p = 0.011). Interaction effects of sex and condition were observed for JVA during HDT ( p = 0.005) and LBNP ( p < 0.001). We observed moderate repeated‐measures correlations ( r rm ) between JVA and CSA in women during HDT ( r rm = 0.57, p = 0.011) and in both men ( r r m = 0.74, p < 0.001) and women ( r rm = 0.66, p < 0.001) during LBNP. While median within‐person correlation coefficients indicated an even stronger association between JVA and CSA, this association became unreliable for small changes in CSA. As hypothesized, JVA was greater and changed more in men compared to women during both HDT and LBNP. CHI provides a non‐contact method of tracking large changes in internal jugular vein blood volume that occur with acute fluid shifts, but data should be interpreted in a sex‐dependent manner.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sex‐dependent jugular vein optical attenuation and distension during head‐down tilt and lower body negative pressure

Patterson

Amelard

Saarikoski

et al. 2022

Physiological Reports

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“…3D location of the target is an important technology along with the rapid development of wireless communication technology in the era of big data [1], which is developed in the study of accurate 3D location of the target under NLOS recently. 3D location technology has been widely applied to many fields such as Google Maps, GPS, and other guided systems.…”

Section: Introductionmentioning

confidence: 99%

“…e difficulties of target location lie in how to get accurate 3D location of the target in unstable and unreliable external network environment and how to improve the robustness of locating. ere are many reasons for 3D localization errors of the target [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Modified Least Squares Algorithm for Three-Dimensional Target Location Based on Wireless Communication Base Stations

Zhang

Liu

2020

Complexity

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The observed values of time of arrival (TOA) for the radio signals between the target and the wireless communication base stations are mainly affected by signal non-line-of-sight (NLOS) propagation in target location. TOA with NLOS makes a lot of signal noises and propagation delays, that is, location errors. For the first time, this paper focuses on the problem of modifying the Z-axis location coordinates in three-dimensional (3D) target location. A novel algorithm is proposed by establishing the modified least squares 3D location model for the accurate target location. Meanwhile, an optimal base station selection strategy is proposed by using the spectral clustering algorithm, which is based on the spatial distribution of the base stations. Compared with the existing algorithms, the proposed algorithm in this paper has better performance on the accurate target 3D location in real scenes, which has a high value of practical application. The simulations illustrate that the location error of the proposed algorithm is smaller than those of other existing algorithms based on the same simulation data and conditions.

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Position- and posture-dependent vascular imaging—a scoping review

van Zandwijk,

Simmering,

Schuurmann

et al. 2023

Eur Radiol

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Objectives Position- and posture-dependent deformation of the vascular system is a relatively unexplored field. The goal of this scoping review was to create an overview of existing vascular imaging modalities in different body positions and postures and address the subsequent changes in vascular anatomy. Methods Scopus, Medline, and Cochrane were searched for literature published between January 1, 2000, and June 30, 2022, incorporating the following categories: image modality, anatomy, orientation, and outcomes. Results Out of 2446 screened articles, we included 108. The majority of papers used ultrasound (US, n = 74) in different body positions and postures with diameter and cross-sectional area (CSA) as outcome measures. Magnetic resonance imaging (n = 22) and computed tomography (n = 8) were less frequently used but allowed for investigation of other geometrical measures such as vessel curvature and length. The venous system proved more sensitive to postural changes than the arterial system, which was seen as increasing diameters of veins below the level of the heart when going from supine to prone to standing positions, and vice versa. Conclusions The influence of body positions and postures on vasculature was predominantly explored with US for vessel diameter and CSA. Posture-induced deformation and additional geometrical features that may be of interest for the (endovascular) treatment of vascular pathologies have been limitedly reported, such as length and curvature of an atherosclerotic popliteal artery during bending of the knee after stent placement. The most important clinical implications of positional changes are found in diagnosis, surgical planning, and follow-up after stent placement. Clinical relevance statement This scoping review presents the current state and opportunities of position- and posture-dependent imaging of vascular structures using various imaging modalities that are relevant in the fields of clinical diagnosis, surgical planning, and follow-up after stent placement. Key Points • The influence of body positions and postures on the vasculature was predominantly investigated with US for vessel diameter and cross-sectional area. • Research into geometrical deformation, such as vessel length and curvature adaptation, that may be of interest for the (endovascular) treatment of vascular pathologies is limited in different positions and postures. • The most important clinical implications of postural changes are found in diagnosis, surgical planning, and follow-up after stent placement.

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The Effects of Positioning on the Volume/Location of the Internal Jugular Vein Using 2-Dimensional Tracked Ultrasound

Cited by 7 publications

References 33 publications

Sex‐dependent jugular vein optical attenuation and distension during head‐down tilt and lower body negative pressure

Sex‐dependent jugular vein optical attenuation and distension during head‐down tilt and lower body negative pressure

Modified Least Squares Algorithm for Three-Dimensional Target Location Based on Wireless Communication Base Stations

Position- and posture-dependent vascular imaging—a scoping review

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