Cerebrovascular reactivity measurements using simultaneous
Adult
Aged
Blood Flow Velocity
/ physiology
Brain
/ diagnostic imaging
Cerebrovascular Circulation
/ physiology
Cerebrovascular Disorders
/ diagnostic imaging
Female
Hematocrit
/ methods
Humans
Magnetic Resonance Imaging
/ methods
Male
Middle Aged
Oxygen Radioisotopes
/ metabolism
Positron-Emission Tomography
/ methods
Spin Labels
Time Factors
Water
/ metabolism
Cerebral blood flow
Cerebrovascular reactivity
Cerebrovascular reserve
Magnetic resonance imaging
PET/MRI
Positron emission tomography
Pseudo-continuous arterial spin labeling
Velocity selective arterial spin labeling
Journal
NeuroImage
ISSN: 1095-9572
Titre abrégé: Neuroimage
Pays: United States
ID NLM: 9215515
Informations de publication
Date de publication:
06 2021
06 2021
Historique:
received:
07
10
2020
revised:
28
02
2021
accepted:
04
03
2021
pubmed:
16
3
2021
medline:
15
10
2021
entrez:
15
3
2021
Statut:
ppublish
Résumé
Cerebrovascular reactivity (CVR) reflects the capacity of the brain to meet changing physiological demands and can predict the risk of cerebrovascular diseases. CVR can be obtained by measuring the change in cerebral blood flow (CBF) during a brain stress test where CBF is altered by a vasodilator such as acetazolamide. Although the gold standard to quantify CBF is PET imaging, the procedure is invasive and inaccessible to most patients. Arterial spin labeling (ASL) is a non-invasive and quantitative MRI method to measure CBF, and a consensus guideline has been published for the clinical application of ASL. Despite single post labeling delay (PLD) pseudo-continuous ASL (PCASL) being the recommended ASL technique for CBF quantification, it is sensitive to variations to the arterial transit time (ATT) and labeling efficiency induced by the vasodilator in CVR studies. Multi-PLD ASL controls for the changes in ATT, and velocity selective ASL is in theory insensitive to both ATT and labeling efficiency. Here we investigate CVR using simultaneous
Identifiants
pubmed: 33716155
pii: S1053-8119(21)00232-9
doi: 10.1016/j.neuroimage.2021.117955
pmc: PMC8272558
mid: NIHMS1714818
pii:
doi:
Substances chimiques
Oxygen Radioisotopes
0
Spin Labels
0
Water
059QF0KO0R
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
117955Subventions
Organisme : NINDS NIH HHS
ID : R00 NS102884
Pays : United States
Organisme : NIBIB NIH HHS
ID : R01 EB025220
Pays : United States
Informations de copyright
Copyright © 2021 The Author(s). Published by Elsevier Inc. All rights reserved.
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