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Splenic Blood Flow Increases after Hypothermic Stimulus (Cold Pressor Test): A Perfusion Magnetic Resonance Study
المؤلفون المشاركون
Catalano, Carlo
Rosato, E.
Francone, Marco
Carbone, Iacopo
Galea, Nicola
Cundari, Giulia
Borrazzo, Cristian
Pambianchi, Giacomo
Bracci, Angelica
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-7، 7ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-05-23
دولة النشر
مصر
عدد الصفحات
7
التخصصات الرئيسية
الملخص 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.
نمط استشهاد جمعية علماء النفس الأمريكية (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
نمط استشهاد الجمعية الأمريكية للغات الحديثة (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
نمط استشهاد الجمعية الطبية الأمريكية (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
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1127912
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