Assessing cerebrospinal fluid flow connectivity using 3D gradient echo phase contrast velocity encoded MRI
(2011) In Physiological Measurement 32(4). p.407-421- Abstract
- The aim of this study is to investigate the feasibility of using three-directional velocity encoded 3D gradient echo (GE) phase contrast (PC) imaging to assess cerebrospinal fluid (CSF) flow connectivity in the human brain. Five healthy volunteers were scanned using low velocity sensitivity (V-enc = 0.04-0.05 m s(-1)). Flow-time curves were compared to standard 2D PC scans. The 3D data were used to reconstruct in vivo CSF flow volumes based on time-averaged phase-difference information, and the patency of the CSF flow pathways was assessed using nearest-neighbour connectivity. A pulsatile flow phantom was used to gauge the measurement accuracy of the CSF flow volumes at low flow velocities. Flow connectivity from the lateral ventricles... (More)
- The aim of this study is to investigate the feasibility of using three-directional velocity encoded 3D gradient echo (GE) phase contrast (PC) imaging to assess cerebrospinal fluid (CSF) flow connectivity in the human brain. Five healthy volunteers were scanned using low velocity sensitivity (V-enc = 0.04-0.05 m s(-1)). Flow-time curves were compared to standard 2D PC scans. The 3D data were used to reconstruct in vivo CSF flow volumes based on time-averaged phase-difference information, and the patency of the CSF flow pathways was assessed using nearest-neighbour connectivity. A pulsatile flow phantom was used to gauge the measurement accuracy of the CSF flow volumes at low flow velocities. Flow connectivity from the lateral ventricles down to the cisterna magna was successfully demonstrated in all volunteers. The phantom tests showed a good distinction between the flow cavities and the background noise. 3D PC imaging results in CSF flow waveforms with similar pulsatility but underestimated peak velocities compared to 2D PC data. 3D time-resolved velocity encoded GE imaging has successfully been applied to assess CSF flow connectivity in normal subjects. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1926443
- author
- Odeen, Henrik LU ; Uppman, Martin LU ; Markl, Michael and Spottiswoode, Bruce S.
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- phase contrast, velocity encoding, cerebrospinal fluid, angiography
- in
- Physiological Measurement
- volume
- 32
- issue
- 4
- pages
- 407 - 421
- publisher
- IOP Publishing
- external identifiers
-
- wos:000288510700004
- scopus:79952957837
- pmid:21343652
- ISSN
- 0967-3334
- DOI
- 10.1088/0967-3334/32/4/003
- language
- English
- LU publication?
- yes
- id
- 32560134-1f65-4efc-bcdf-78f821619241 (old id 1926443)
- date added to LUP
- 2016-04-01 10:09:45
- date last changed
- 2022-01-25 20:19:57
@article{32560134-1f65-4efc-bcdf-78f821619241,
abstract = {{The aim of this study is to investigate the feasibility of using three-directional velocity encoded 3D gradient echo (GE) phase contrast (PC) imaging to assess cerebrospinal fluid (CSF) flow connectivity in the human brain. Five healthy volunteers were scanned using low velocity sensitivity (V-enc = 0.04-0.05 m s(-1)). Flow-time curves were compared to standard 2D PC scans. The 3D data were used to reconstruct in vivo CSF flow volumes based on time-averaged phase-difference information, and the patency of the CSF flow pathways was assessed using nearest-neighbour connectivity. A pulsatile flow phantom was used to gauge the measurement accuracy of the CSF flow volumes at low flow velocities. Flow connectivity from the lateral ventricles down to the cisterna magna was successfully demonstrated in all volunteers. The phantom tests showed a good distinction between the flow cavities and the background noise. 3D PC imaging results in CSF flow waveforms with similar pulsatility but underestimated peak velocities compared to 2D PC data. 3D time-resolved velocity encoded GE imaging has successfully been applied to assess CSF flow connectivity in normal subjects.}},
author = {{Odeen, Henrik and Uppman, Martin and Markl, Michael and Spottiswoode, Bruce S.}},
issn = {{0967-3334}},
keywords = {{phase contrast; velocity encoding; cerebrospinal fluid; angiography}},
language = {{eng}},
number = {{4}},
pages = {{407--421}},
publisher = {{IOP Publishing}},
series = {{Physiological Measurement}},
title = {{Assessing cerebrospinal fluid flow connectivity using 3D gradient echo phase contrast velocity encoded MRI}},
url = {{http://dx.doi.org/10.1088/0967-3334/32/4/003}},
doi = {{10.1088/0967-3334/32/4/003}},
volume = {{32}},
year = {{2011}},
}