A novel device for guiding ventriculostomy with transcranial ultrasound

A ventriculostomy is often performed to relieve symptoms of emergent hydrocephalus. This involves the placement of an external ventricular drain (EVD) into the cerebral ventricles to remove excess cerebrospinal fluid. Free-handed EVD cannulation results in high rates of misplacement (~50%), leading...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2014-04, Vol.135 (4_Supplement), p.2211-2211
Main Authors: Meral, Faik C., Persaud, Michael A., Silva, Aaron E., Mundra, Abhishek, Clement, Greg T., Vosburgh, Kirby G., White, Phillip J.
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A ventriculostomy is often performed to relieve symptoms of emergent hydrocephalus. This involves the placement of an external ventricular drain (EVD) into the cerebral ventricles to remove excess cerebrospinal fluid. Free-handed EVD cannulation results in high rates of misplacement (~50%), leading to an increased risk of iatrogenic complications. Extant technical approaches to improve ventriculostomy guidance are either too complex or inaccurate. We have investigated the possibility of a novel device to guide EVD placement using transcranial ultrasound. The device uses three specifically aligned transducers delivering pulse-echo 0.5-MHz ultrasound through the skull bone to detect and localize the targeted ventricle. It also incorporates a cannula guide that is registered with the ultrasound FOV to integrate guidance with surgery. Results from the design, fabrication, and testing of the prototype device with ex vivo human skulls and brain phantoms will be presented.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.4877219