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Arterial spin-labeling perfusion MR imaging demonstrates regional cbf decrease in idiopathic normal pressure hydrocephalus

Virhammar, J.; Laurell, K.; Ahlgren, A. LU and Larsson, E. M. (2017) In American Journal of Neuroradiology 38(11). p.2081-2088
Abstract

BACKGROUND AND PURPOSE: Regional cerebral blood flow has previously been studied in patients with idiopathic normal pressure hydrocephalus with imaging methods that require an intravenous contrast agent or expose the patient to ionizing radiation. The purpose of this study was to assess regional CBF in patients with idiopathic normal pressure hydrocephalus compared with healthy controls using the noninvasive quantitative arterial spin-labeling MR imaging technique. A secondary aim was to compare the correlation between symptom severity and CBF. MATERIALS AND METHODS: Differences in regional cerebral perfusion between patients with idiopathic normal pressure hydrocephalus and healthy controls were investigated with pseudocontinuous... (More)

BACKGROUND AND PURPOSE: Regional cerebral blood flow has previously been studied in patients with idiopathic normal pressure hydrocephalus with imaging methods that require an intravenous contrast agent or expose the patient to ionizing radiation. The purpose of this study was to assess regional CBF in patients with idiopathic normal pressure hydrocephalus compared with healthy controls using the noninvasive quantitative arterial spin-labeling MR imaging technique. A secondary aim was to compare the correlation between symptom severity and CBF. MATERIALS AND METHODS: Differences in regional cerebral perfusion between patients with idiopathic normal pressure hydrocephalus and healthy controls were investigated with pseudocontinuous arterial spin-labeling perfusion MR imaging. Twenty-one consecutive patients with idiopathic normal pressure hydrocephalus and 21 age- and sex-matched randomly selected healthy controls from the population registry were prospectively included. The controls did not differ from patients with respect to selected vascular risk factors. Twelve different anatomic ROIs were manually drawn on coregistered FLAIR images. The Holm-Bonferroni correction was applied to statistical analyses. RESULTS: In patients with idiopathic normal pressure hydrocephalus, perfusion was reduced in the periventricular white matter (P < .001), lentiform nucleus (P < .001), and thalamus (P < .001) compared with controls. Cognitive function in patients correlated with CBF in the periventricular white matter (r = 0.60, P < .01), cerebellum (r = 0.63, P < .01), and pons (r = 0.71, P < .001). CONCLUSIONS: Using pseudocontinuous arterial spin-labeling, we could confirm findings of a reduced perfusion in the periventricular white matter, basal ganglia, and thalamus in patients with idiopathic normal pressure hydrocephalus previously observed with other imaging techniques.

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Contribution to journal
publication status
published
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in
American Journal of Neuroradiology
volume
38
issue
11
pages
8 pages
publisher
American Society of Neuroradiology
external identifiers
  • scopus:85034610340
  • wos:000415996600018
ISSN
0195-6108
DOI
10.3174/ajnr.A5347
language
English
LU publication?
yes
id
4e7a7a8b-6387-46fd-96db-e347836b6beb
date added to LUP
2017-12-18 15:12:04
date last changed
2018-01-16 13:28:18
@article{4e7a7a8b-6387-46fd-96db-e347836b6beb,
  abstract     = {<p>BACKGROUND AND PURPOSE: Regional cerebral blood flow has previously been studied in patients with idiopathic normal pressure hydrocephalus with imaging methods that require an intravenous contrast agent or expose the patient to ionizing radiation. The purpose of this study was to assess regional CBF in patients with idiopathic normal pressure hydrocephalus compared with healthy controls using the noninvasive quantitative arterial spin-labeling MR imaging technique. A secondary aim was to compare the correlation between symptom severity and CBF. MATERIALS AND METHODS: Differences in regional cerebral perfusion between patients with idiopathic normal pressure hydrocephalus and healthy controls were investigated with pseudocontinuous arterial spin-labeling perfusion MR imaging. Twenty-one consecutive patients with idiopathic normal pressure hydrocephalus and 21 age- and sex-matched randomly selected healthy controls from the population registry were prospectively included. The controls did not differ from patients with respect to selected vascular risk factors. Twelve different anatomic ROIs were manually drawn on coregistered FLAIR images. The Holm-Bonferroni correction was applied to statistical analyses. RESULTS: In patients with idiopathic normal pressure hydrocephalus, perfusion was reduced in the periventricular white matter (P &lt; .001), lentiform nucleus (P &lt; .001), and thalamus (P &lt; .001) compared with controls. Cognitive function in patients correlated with CBF in the periventricular white matter (r = 0.60, P &lt; .01), cerebellum (r = 0.63, P &lt; .01), and pons (r = 0.71, P &lt; .001). CONCLUSIONS: Using pseudocontinuous arterial spin-labeling, we could confirm findings of a reduced perfusion in the periventricular white matter, basal ganglia, and thalamus in patients with idiopathic normal pressure hydrocephalus previously observed with other imaging techniques.</p>},
  author       = {Virhammar, J. and Laurell, K. and Ahlgren, A. and Larsson, E. M.},
  issn         = {0195-6108},
  language     = {eng},
  month        = {11},
  number       = {11},
  pages        = {2081--2088},
  publisher    = {American Society of Neuroradiology},
  series       = {American Journal of Neuroradiology},
  title        = {Arterial spin-labeling perfusion MR imaging demonstrates regional cbf decrease in idiopathic normal pressure hydrocephalus},
  url          = {http://dx.doi.org/10.3174/ajnr.A5347},
  volume       = {38},
  year         = {2017},
}