Doppler Sonography of Blood Flow Velocity in the Vertebral Arteries of Preterm and Term Neonates

Windschall, Daniel; Hoekstra, Katrin; Haase, Roland

doi:10.7863/ultra.15.09061

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…The brain vasculature is an intricate network of blood vessels that can range from millimeters to micrometers in diameter, with a blood flow that can reach 42 cm s -1 for the larger arteries. [40,41] This network is often afflicted by life-threatening aneurysms or thrombi formation that require challenging endovascular manner navigation. Approximately 85% of aneurysms are located in the anterior circulation of the Circle of Willis, [42] which supplies blood to the brain and the surrounding structures.…”

Section: Navigation Of Brain Arteriesmentioning

confidence: 99%

A Human‐Scale Clinically Ready Electromagnetic Navigation System for Magnetically Responsive Biomaterials and Medical Devices

Gervasoni,

Pedrini,

Rifai

et al. 2024

Advanced Materials

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Magnetic navigation systems are used to precisely manipulate magnetically responsive materials enabling the realization of new minimally invasive procedures using magnetic medical devices. Their widespread applicability has been constrained by high infrastructure demands and costs. we report on a portable electromagnetic navigation system, the Navion, which is capable of generating a large magnetic field over a large workspace. The system is easy to install in hospital operating rooms and transportable through healthcare facilities, aiding in the widespread adoption of magnetically responsive medical devices. First, we introduce our design and implementation approach for the system and characterize its performance. Next, we demonstrate in vitro navigation of different microrobot structures using magnetic field gradients and rotating magnetic fields. Spherical permanent magnets, electroplated cylindrical microrobots, microparticle swarms, and magnetic composite bacteria‐inspired helical structures are investigated. we also demonstrate the navigation of magnetic catheters in two challenging endovascular tasks: (1) an angiography procedure and (2) deep navigation within the circle of Willis. Catheter navigation is demonstrated in a porcine model in vivo to perform an angiography under magnetic guidance.This article is protected by copyright. All rights reserved

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Section: Navigation Of Brain Arteriesmentioning

confidence: 99%

A Human‐Scale Clinically Ready Electromagnetic Navigation System for Magnetically Responsive Biomaterials and Medical Devices

Gervasoni,

Pedrini,

Rifai

et al. 2024

Advanced Materials

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show abstract

Transcranial Doppler and computed tomography angiography for detecting cerebral vasospasm post-aneurysmal subarachnoid hemorrhage

et al. 2022

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Doppler Sonography of Blood Flow Velocity in the Vertebral Arteries of Preterm and Term Neonates

Abstract: Sonography is an excellent tool for examining blood flow in the basilar and vertebral arteries of premature and term neonates. Mean systolic and diastolic blood flow velocities in the vertebral arteries increase significantly with age.

Cited by 2 publications

References 22 publications

A Human‐Scale Clinically Ready Electromagnetic Navigation System for Magnetically Responsive Biomaterials and Medical Devices

A Human‐Scale Clinically Ready Electromagnetic Navigation System for Magnetically Responsive Biomaterials and Medical Devices

Transcranial Doppler and computed tomography angiography for detecting cerebral vasospasm post-aneurysmal subarachnoid hemorrhage

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