Ultrasound-guided peripheral intravenous cannulation

Knipe, Henry; Brideaux, Adam

doi:10.53347/rid-47036

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…The ability to visualize and locate blood vessels in patients non-invasively is important for a range of clinical applications, such as guiding transradial access 1,2 , and intravenous cannulation 3 . While optical methods can image superficial blood vessels, they often have poor contrast and resolution at depths greater than 1 mm [4][5][6] .…”

Section: Introductionmentioning

confidence: 99%

Optoacoustic imaging of coronary arteries for bypass surgery using a handheld lens-free probe

Or,

Levi,

Hazan

et al. 2023

Opto-Acoustic Methods and Applications in Biophotonics VI

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The rapid localization of blood vessels in patients is important in various clinical applications, such as catheterization procedures. While optical techniques, including visual inspection, are limited in their effectiveness at depths below 1 mm, ultrasound and optoacoustic tomography can be used at deeper depths but require a spacer between the tissue and transducer to visualize superficial structures. In this work, we introduce a portable handheld optoacoustic system that is capable of localizing blood vessels from the point of contact to a depth of 1 cm without the need for a spacer. The probe features a flat, lens-free ultrasound array which enables a largely depthindependent response, though at the cost of reduced elevational resolution. In contrast to lens-based probes, where acoustic signals from outside the focal region are distorted, the amplitude of the signal from our probe only varies with depth, resulting in an imaging quality that is largely depth-independent within the imaged region. Additionally, to facilitate miniaturization, dark-field illumination is used, whereby light scattering from the tissue is exploited to homogenize the sensitivity field.

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Section: Introductionmentioning

confidence: 99%

Optoacoustic imaging of coronary arteries for bypass surgery using a handheld lens-free probe

Or,

Levi,

Hazan

et al. 2023

Opto-Acoustic Methods and Applications in Biophotonics VI

View full text Add to dashboard Cite

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Hand-Held Optoacoustic System for the Localization of Mid-Depth Blood Vessels

Levi

Hazan

et al. 2022

Photonics

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The ability to rapidly locate blood vessels in patients is important in many clinical applications, e.g., in catheterization procedures. Optical techniques, including visual inspection, generally suffer from a reduced performance at depths below 1 mm, while ultrasound and optoacoustic tomography are better suited to a typical depth on the scale of 1 cm and require an additional spacer between the tissue and transducer in order to image the superficial structures at the focus plane. For this work, we developed a hand-held optoacoustic probe, designed for localizing blood vessels from the contact point down to a depth of 1 cm, without the use of a spacer. The probe employs a flat lens-free ultrasound array, enabling a largely depth-independent response down to a depth of 1 cm, at the expense of low elevational resolution. Specifically, while in lens-based probes, the acoustic signals from outside the focal region suffer from distortion, in our probe, only the amplitude of the signal varies with depth, thus leading to an imaging quality that is largely depth-independent in the imaged region. To facilitate miniaturization, dark-field illumination is used, whereby light scattering from the tissue is exploited to homogenize the sensitivity field.

show abstract

Ultrasound-guided peripheral intravenous cannulation

Cited by 2 publications

References 4 publications

Optoacoustic imaging of coronary arteries for bypass surgery using a handheld lens-free probe

Optoacoustic imaging of coronary arteries for bypass surgery using a handheld lens-free probe

Hand-Held Optoacoustic System for the Localization of Mid-Depth Blood Vessels

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