The use of magnetic resonance imaging to assess slow fluid flow in a model cerebrospinal fluid shunt system

Edmund Frank, Michael Buonocore, Larry Hein

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Cerebrospinal fluid (CSF) shunt malfunction in patients with hydrocephalus is common and can result in prolonged hospitalisation, operative exploration or progressive neurologic damage. The evaluation of shunt function usually requires invasive techniques that can be inaccurate or cause complications. Magnetic Resonance Imaging (MRI), which has been used to study both intraluminal blood flow and intraventricular CSF flow, may offer an alternative noninvasive test of shunt function. The MR characteristics of flow related enhancement were studied in a model shunt system. A special section of tubing for MRI was inserted into the system proximal to the valve. Flow through the system could be varied from 0 to 20 ml/h. Multiple spin echo images were made (TR2000, TE20) transverse to the specialised tubing. The intensity of the intraluminal MR signal at specific locations along this tubing and from a 'no flow' standard were measured. The signal intensity varied as a linear function of flow rate from 2.5 ml/h to 20 ml/h. These results suggest that MRI has potential for evaluating the slow flows in CSF shunts.

Original languageEnglish (US)
Pages (from-to)53-57
Number of pages5
JournalBritish Journal of Neurosurgery
Volume4
Issue number1
DOIs
StatePublished - 1990

Fingerprint

Cerebrospinal Fluid Shunts
Magnetic Resonance Imaging
Hydrocephalus
Nervous System
Cerebrospinal Fluid
Hospitalization

Keywords

  • Cerebrospinal fluid
  • Cerebrospinal fluid shunt
  • Magnetic resonance imaging
  • Shunt malfunction

ASJC Scopus subject areas

  • Clinical Neurology
  • Surgery

Cite this

The use of magnetic resonance imaging to assess slow fluid flow in a model cerebrospinal fluid shunt system. / Frank, Edmund; Buonocore, Michael; Hein, Larry.

In: British Journal of Neurosurgery, Vol. 4, No. 1, 1990, p. 53-57.

Research output: Contribution to journalArticle

Frank, Edmund ; Buonocore, Michael ; Hein, Larry. / The use of magnetic resonance imaging to assess slow fluid flow in a model cerebrospinal fluid shunt system. In: British Journal of Neurosurgery. 1990 ; Vol. 4, No. 1. pp. 53-57.
@article{6ced45247198408d885182bdf38e056b,
title = "The use of magnetic resonance imaging to assess slow fluid flow in a model cerebrospinal fluid shunt system",
abstract = "Cerebrospinal fluid (CSF) shunt malfunction in patients with hydrocephalus is common and can result in prolonged hospitalisation, operative exploration or progressive neurologic damage. The evaluation of shunt function usually requires invasive techniques that can be inaccurate or cause complications. Magnetic Resonance Imaging (MRI), which has been used to study both intraluminal blood flow and intraventricular CSF flow, may offer an alternative noninvasive test of shunt function. The MR characteristics of flow related enhancement were studied in a model shunt system. A special section of tubing for MRI was inserted into the system proximal to the valve. Flow through the system could be varied from 0 to 20 ml/h. Multiple spin echo images were made (TR2000, TE20) transverse to the specialised tubing. The intensity of the intraluminal MR signal at specific locations along this tubing and from a 'no flow' standard were measured. The signal intensity varied as a linear function of flow rate from 2.5 ml/h to 20 ml/h. These results suggest that MRI has potential for evaluating the slow flows in CSF shunts.",
keywords = "Cerebrospinal fluid, Cerebrospinal fluid shunt, Magnetic resonance imaging, Shunt malfunction",
author = "Edmund Frank and Michael Buonocore and Larry Hein",
year = "1990",
doi = "10.3109/02688699009000682",
language = "English (US)",
volume = "4",
pages = "53--57",
journal = "British Journal of Neurosurgery",
issn = "0268-8697",
publisher = "Informa Healthcare",
number = "1",

}

TY - JOUR

T1 - The use of magnetic resonance imaging to assess slow fluid flow in a model cerebrospinal fluid shunt system

AU - Frank, Edmund

AU - Buonocore, Michael

AU - Hein, Larry

PY - 1990

Y1 - 1990

N2 - Cerebrospinal fluid (CSF) shunt malfunction in patients with hydrocephalus is common and can result in prolonged hospitalisation, operative exploration or progressive neurologic damage. The evaluation of shunt function usually requires invasive techniques that can be inaccurate or cause complications. Magnetic Resonance Imaging (MRI), which has been used to study both intraluminal blood flow and intraventricular CSF flow, may offer an alternative noninvasive test of shunt function. The MR characteristics of flow related enhancement were studied in a model shunt system. A special section of tubing for MRI was inserted into the system proximal to the valve. Flow through the system could be varied from 0 to 20 ml/h. Multiple spin echo images were made (TR2000, TE20) transverse to the specialised tubing. The intensity of the intraluminal MR signal at specific locations along this tubing and from a 'no flow' standard were measured. The signal intensity varied as a linear function of flow rate from 2.5 ml/h to 20 ml/h. These results suggest that MRI has potential for evaluating the slow flows in CSF shunts.

AB - Cerebrospinal fluid (CSF) shunt malfunction in patients with hydrocephalus is common and can result in prolonged hospitalisation, operative exploration or progressive neurologic damage. The evaluation of shunt function usually requires invasive techniques that can be inaccurate or cause complications. Magnetic Resonance Imaging (MRI), which has been used to study both intraluminal blood flow and intraventricular CSF flow, may offer an alternative noninvasive test of shunt function. The MR characteristics of flow related enhancement were studied in a model shunt system. A special section of tubing for MRI was inserted into the system proximal to the valve. Flow through the system could be varied from 0 to 20 ml/h. Multiple spin echo images were made (TR2000, TE20) transverse to the specialised tubing. The intensity of the intraluminal MR signal at specific locations along this tubing and from a 'no flow' standard were measured. The signal intensity varied as a linear function of flow rate from 2.5 ml/h to 20 ml/h. These results suggest that MRI has potential for evaluating the slow flows in CSF shunts.

KW - Cerebrospinal fluid

KW - Cerebrospinal fluid shunt

KW - Magnetic resonance imaging

KW - Shunt malfunction

UR - http://www.scopus.com/inward/record.url?scp=0025240792&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025240792&partnerID=8YFLogxK

U2 - 10.3109/02688699009000682

DO - 10.3109/02688699009000682

M3 - Article

C2 - 2334529

AN - SCOPUS:0025240792

VL - 4

SP - 53

EP - 57

JO - British Journal of Neurosurgery

JF - British Journal of Neurosurgery

SN - 0268-8697

IS - 1

ER -