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Splenic Blood Flow Increases after Hypothermic Stimulus (Cold Pressor Test): A Perfusion Magnetic Resonance Study
Joint Authors
Catalano, Carlo
Rosato, E.
Francone, Marco
Carbone, Iacopo
Galea, Nicola
Cundari, Giulia
Borrazzo, Cristian
Pambianchi, Giacomo
Bracci, Angelica
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-05-23
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The Cold Pressor Test (CPT) is a novel diagnostic strategy to noninvasively assess the myocardial microvascular endothelial-dependent function using perfusion magnetic resonance imaging (MRI).
Spleen perfusion is modulated by a complex combination of several mechanisms involving the autonomic nervous system and vasoactive mediators release.
In this context, the effects of cold temperature on splenic blood flow (SBF) still need to be clarified.
Ten healthy subjects were studied by MRI.
MRI protocol included the acquisition of GRE T1-weighted sequence (“first pass perfusion”) during gadolinium administration (0.1mmol/kg of Gd-DOTA at flow of 3.0 ml/s), at rest and after CPT.
Myocardial blood flow (MBF) and SBF were measured by applying Fermi function deconvolution, using the blood pool input function sampled from the left ventricle cavity.
MBF and SBF values after performing CPT were significantly higher than rest values (SBF at rest: 0.65 ± 0.15 ml/min/g Vs.
SBF after CPT: 0.90 ± 0.14 ml/min/g, p: <0.001; MBF at rest: 0.90 ± 0.068 ml/min/g Vs.
MBF after CPT: 1.22 ± 0.098 ml/min/g, p<0.005).
Both SBF and MBF increased in all patients during the CPT.
In particular, the CPT-induced increase was 43% ± 29% for SBF and 36.5% ± 17% for MBF.
CPT increases SBF in normal subjects.
The characterization of a standard perfusion response to cold might allow the use of the spleen as reference marker for the adequacy of cold stimulation during myocardial perfusion MRI.
American Psychological Association (APA)
Galea, Nicola& Cundari, Giulia& Borrazzo, Cristian& Pambianchi, Giacomo& Bracci, Angelica& Rosato, E.…[et al.]. 2019. Splenic Blood Flow Increases after Hypothermic Stimulus (Cold Pressor Test): A Perfusion Magnetic Resonance Study. BioMed Research International،Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1127912
Modern Language Association (MLA)
Galea, Nicola…[et al.]. Splenic Blood Flow Increases after Hypothermic Stimulus (Cold Pressor Test): A Perfusion Magnetic Resonance Study. BioMed Research International No. 2019 (2019), pp.1-7.
https://search.emarefa.net/detail/BIM-1127912
American Medical Association (AMA)
Galea, Nicola& Cundari, Giulia& Borrazzo, Cristian& Pambianchi, Giacomo& Bracci, Angelica& Rosato, E.…[et al.]. Splenic Blood Flow Increases after Hypothermic Stimulus (Cold Pressor Test): A Perfusion Magnetic Resonance Study. BioMed Research International. 2019. Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1127912
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1127912