Noninvasive CSF shunt patency evaluation by superb microvascular imaging

Noninvasive CSF shunt patency evaluation by superb microvascular imaging

Occlusion of a ventriculoperitoneal shunt system is a potentially life-threatening complication in patients suffering from hydrocephalus. However, there is no imaging established as standard approach in this acute setting. In the present study, we evaluate the use of superb microvascular imaging for...

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Bibliographic Details
Published in:Neurosurgical review Vol. 46; no. 1; p. 190
Main Authors: Putzer, D., Brawanski, K., Verius, M., Oberherber, H., Thome, C., Gizewski, E. R., Gruber, H.
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-08-2023
Subjects:
Angiography
Computer Simulation
Humans
Hydrocephalus - diagnostic imaging
Hydrocephalus - etiology
Hydrocephalus - surgery
Medicine
Medicine & Public Health
Neurosurgery
Ventriculoperitoneal Shunt - adverse effects
CSF flow measurement
VP shunt obstruction
VP shunt sonography
Shunt diagnostics
CSF shunt flow evaluation
VP shunt dysfunction
Superb microvascular ultrasound
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Description
Summary:Occlusion of a ventriculoperitoneal shunt system is a potentially life-threatening complication in patients suffering from hydrocephalus. However, there is no imaging established as standard approach in this acute setting. In the present study, we evaluate the use of superb microvascular imaging for investigation of the patency of ventriculoperitoneal shunt systems. Simulation of low flow rates of cerebrospinal fluid through a small diameter CSF shunt system was performed in a dedicated phantom in order to proof the principle of superb microvascular imaging (SMI) being feasible for the measurement of slow CSF flow through the dedicated CSF shunt system. SMI is able to detect low flow rates in CSF shunt systems effectively and fast. Visualization of a Duplex ultrasound flow and Doppler wave pattern in the VP shunt system after the reservoir has been pressed confirms patency. SMI is an effective method for evaluating CSF shunt patency and diagnosing shunt obstruction. This bears the potential to facilitate evaluation of clinically symptomatic VP shunt patients in an acute setting. Further evaluation of ultrasound flow patterns is granted.
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ISSN:1437-2320
0344-5607
1437-2320
DOI:10.1007/s10143-023-02090-5