bedside measurements of cerebral blood flow
Báo cáo y học: "Daily rhythm of cerebral blood flow velocity" pdf
Ngày tải lên :
10/08/2014, 09:20
... Wildschiodtz G: Human regional cerebral blood flow during rapid eye movement sleep J Cereb Blood Flow Metab 1991, 11:502-507 Meyer JS, Ishikawa Y, Hata T, Karacan I: Cerebral blood flow in normal and abnormal ... Wildschiodtz G: Human regional cerebral blood flow during Rapid Eye Movement Sleep J Cereb Blood Flow Metab 1991, 11:502-507 Madsen PL, Vorstrup S: Cerebral blood flow and metabolism during sleep ... Cosine Curve fit to Mean Cerebral Blood Flow Velocity (cm/sec) Time course of CBFV according to time of day Shown is a double plot of the group (n = 11) mean levels (+/- SEM) of CBFV (blue diamonds)...
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Báo cáo hóa học: " Review Article Multimodal Pressure-Flow Analysis: Application of Hilbert Huang Transform in Cerebral Blood Flow Regulation" docx
Ngày tải lên :
21/06/2014, 22:20
... Wong, and H.-H Hu, “Frequency domain analysis of cerebral blood flow velocity and its correlation with arterial blood pressure,” Journal of Cerebral Blood Flow & Metabolism, vol 18, no 3, pp 311–318, ... “Endogenous circadian rhythm in an index of cardiac vulnerability independent of changes in behavior,” Proceedings of the National Academy of Sciences of the United States of America, vol 101, no 52, pp ... Proceedings of the National Academy of Sciences of the United States of America, vol 95, no 9, pp 4816–4821, 1998 [22] R Maestri, G D Pinna, A Accardo, et al., “Nonlinear indices of heart rate...
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Báo cáo y học: " Investigation of the cerebral blood flow of an Omani man with supposed ‘spirit possession’ associated with an altered mental state : a case report" docx
Ngày tải lên :
11/08/2014, 14:21
... culture-specific idioms of distress [5] To our knowledge, no study has examined whether possessive states can be related to indices of cerebral blood flow This paper presents a case study of an Omani man ... history of a recent change in personality and impairment of sensory perception The patient complained of abnormal auditory experiences when alone He also complained that the appearance of his ... scores were in the clinically abnormal range, with a total score of less than 19 Blood tests revealed normal complete blood count, blood biochemistry, thyroid functions and lipid levels Brain perfusion...
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Báo cáo y học: "Changes of uterine blood flow after vaginal radical trachelectomy (VRT) in patients with early-stage uterine invasive cervical cancer"
Ngày tải lên :
25/10/2012, 11:48
... network of vessels No difference between the patients could be detected for the blood flow distribution Are these networks of new vessels sufficient for the maintenance of pregnancy? A decrease of blood ... contributor of blood flow to the uterus In this study, 3D CT scans also showed sufficient blood flow to the uterine body through both ovarian arteries, the remaining ascending branches of uterine ... growth of both patients Patient received emergent cesarean section at 24 weeks of gestation because of sudden premature rupture of the membrane Therefore the birth weight 263 of the child of patient...
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báo cáo hóa học: " Relationship between oxygen supply and cerebral blood flow assessed by transcranial Doppler and near – infrared spectroscopy in healthy subjects during breath – holding" doc
Ngày tải lên :
19/06/2014, 10:20
... regional cerebral blood flow constitutes the basis of the so called BOLD effect (Blood Oxygenation Level Dependent) and, hence, of the functional magnetic resonance [1] Thus, the assessment of cerebral ... assessment of cerebral hemodynamics, transcranial Doppler ultrasonography (TCD) plays a fundamental role [2,3] By means of TCD it is possible to measure the cerebral arteries blood flow velocity ... mean CBFVs Envelope of two waves of CBFV derived by a TCD scan of the left MCA of a healthy subject The figure reports the indications of the peak systolic velocity value (PV), of the end diastolic...
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Báo cáo y học: "The role of ATP and adenosine in the control of hepatic blood flow in the rabbit liver in vivo" pps
Ngày tải lên :
13/08/2014, 13:20
... changes in HA or PV blood flow could again be recorded as absolute values from the precalibrated electromagnetic flow meters Dose-response curves of changes in blood flow vs dose of drug injected ... recorded as absolute flow values from the precalibrated electromagnetic flow probes Hepatic blood flow was then restored by removal of the vascular clamp on the PV, and reapplication of the anastomotic ... allowed diversion of mesenteric blood flow to the systemic circulation as required A clamp was placed on the cross limb of the "H" to restore portal flow Pre-calibrated electromagnetic flow probes...
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Cardiovascular magnetic resonance imaging in the assesment of myocardial blood flow, viability, and diffuse fibrosis in congenital and acquired heart disease
Ngày tải lên :
20/05/2016, 20:50
... Page | I Table of Contents Table of Contents II List of Figures V List of Tables VIII INTRODUCTION 1.1 The Importance of Myocardial ... with an incidence of approximately 188.1 per 100,000 children younger than four years of age, and a male-tofemale ratio of 1.5:1 (Kato 2010) KD is associated with the development of coronary artery ... in a myocardial region of interest Replenishment of this same region with gas-filled bubbles (i.e myocardial opacification) will provide a measure of myocardial blood flow (Wei et al., 1998;...
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báo cáo hóa học:" SPECT/CT-plethysmography – non-invasive quantitation of bone and soft tissue blood flow" ppt
Ngày tải lên :
20/06/2014, 01:20
... growth, remodeling and repair of bone require delivery of nutrients and oxygen through blood flow to bone tissue [21] Interruption of normal bone and soft tissue blood flow has been shown to be responsible ... intuitive to us Our measurements cannot differentiate muscle from skin blood flow, thus SBF refers to both The resolution of the method, which supposedly determines a metric of blood flow in the bone, ... upper limb, RLL-right lower limb, LLL-left lower limb FL-total limb blood flow, FB-bone blood flow, FS blood flow in the soft tissue compartment Data is expressed as mean ± SEM Click here for...
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Báo cáo y học: " Bench-to-bedside review: A possible resolution of the glucose paradox of cerebral ischemia" pdf
Ngày tải lên :
12/08/2014, 18:21
... glucose paradox of cerebral ischemia The CT hypothesis is consequently being offered to explain this paradox instead of the lactic acidosis hypothesis Summary The glucose paradox of cerebral ischemia, ... not provide the proof that CT is the culprit of the glucose paradox phenomenon A more direct approach must be taken to demonstrate the complicity of CT Hence, either blockade of CT biosynthesis, ... the onset of ischemia, showed a significantly lower degree of delayed neuronal damage postischemia in comparison with control rats Hippocampal levels of lactate Figure The effects of glucose...
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Báo cáo y học: "Correlation of exhaled breath temperature with bronchial blood flow in asthma" pptx
Ngày tải lên :
12/08/2014, 18:21
... Time (ms) Figure for Method the measurement of bronchial blood flow (Qaw) Method for the measurement of bronchial blood flow (Qaw) Subjects inhale 60% of their vital capacity from a reservoir containing ... measurement of Qaw produces results which include the contribution of the dead space and trachea blood flow to the total bronchial blood flow We acknowledge that the trachea may not be the main site of ... to the bronchial blood flow Qaw was expressed as µl/ml/min representing the volume of blood per volume of dead space per time Previous studies have used dimethyl ether instead of acetylene for...
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Báo cáo y học: "Effect of a lung recruitment maneuver by high-frequency oscillatory ventilation in experimental acute lung injury on organ blood flow in pigs" ppsx
Ngày tải lên :
12/08/2014, 23:24
... both ventilatory modes The cerebral blood flow, myocardial blood flow, renal blood flow, and blood flow of the jejunum, however, were not reduced during stepwise increases of the mean airway pressure ... ventricular blood flow did not vary during Pmean variations Renal blood flow did not change during increases of Pmean and showed no differences between HFOV and PCV Jejunal blood flow showed ... negative influence upon blood flow to the brain, the kidneys, the jejunum and the heart The stabilization of organ blood flows may be due to the absence of severe changes of systemic hemodynamics...
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Báo cáo y học: "Effect of a lung recruitment maneuver by high-frequency oscillatory ventilation in experimental acute lung injury on organ blood flow" pdf
Ngày tải lên :
12/08/2014, 23:24
... both ventilatory modes The cerebral blood flow, myocardial blood flow, renal blood flow, and blood flow of the jejunum, however, were not reduced during stepwise increases of the mean airway pressure ... ventricular blood flow did not vary during Pmean variations Renal blood flow did not change during increases of Pmean and showed no differences between HFOV and PCV Jejunal blood flow showed ... negative influence upon blood flow to the brain, the kidneys, the jejunum and the heart The stabilization of organ blood flows may be due to the absence of severe changes of systemic hemodynamics...
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Báo cáo khoa học: "Effects of dopexamine on the intestinal microvascular blood flow and leucocyte activation in a sepsis model in rats" pptx
Ngày tải lên :
13/08/2014, 02:24
... Page of (page number not for citation purposes) of the laser penetration depth of about 1–2 mm, IMBF reflects the blood flow in the whole gut wall In contrast, FCD reflects only the perfusion of ... and heart rate Page of (page number not for citation purposes) In one half of the animals of each group, LDF was performed The other half of the animals underwent examination of leucocyte adherence ... compression or traction of the gut Pilot experiments have demonstrated that low dosages of enbucrilate not influence intestinal blood flow or intestinal function The position of the probe was not...
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Báo cáo khoa học: "Vasopressin in vasodilatory shock: ensure organ blood flow, but take care of the heart" ppsx
Ngày tải lên :
13/08/2014, 03:20
... almost 50% of the causes of death in patients with advanced vasodilatory shock [5] Considering the heart as the obviously most vulnerable link of the cardiovascular chain, it must be one of our goals ... effects on the heart itself (exponential elevation of oxygen demand due to increases in heart rate or triggering of tachyarrhythmias, induction of myocardial stunning at high dosages [12]) Recent ... experiment Nonetheless, this study underlines important points of hemodynamic management in vasodilatory shock: Systemic blood flow must be ensured to guarantee adequate organ perfusion as reflected...
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Báo cáo y học: "Effects of Sophora japonica flowers (Huaihua) on cerebral infarction" pdf
Ngày tải lên :
13/08/2014, 14:20
... the consumption of oxygen to protect cardiac function [30,31] The anti-hemorrhagic effect of quercetin (water extracts of the buds of Sophora japonica) was due to stabilization of capillary integrity ... reduction in cerebral infarction size and its effects on platelet aggregation and cardiovascular function Page of 4 10 11 12 Abbreviations MCAO: middle cerebral artery occlusion; EGB 761: extract of Ginkgo ... Medicine 2010, 5:34 http://www.cmjournal.org/content/5/1/34 Page of Table Possible pharmacological actions of Sophora japonica on cerebral infarction Pharmacological actions Related components...
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Báo cáo y học: "Differential influence of arterial blood glucose on cerebral metabolism following severe traumatic brain injury" pptx
Ngày tải lên :
13/08/2014, 15:21
... Taeger K, Brawanski A: Monitoring of cerebral oxygen metabolism in the jugular bulb: reliability of unilateral measurements in severe head injury J Cereb Blood Flow Metab 1998, 18:332-343 Parkin ... for pre-defined arterial blood glucose values in a total of 69 patients with severe TBI In addition, post hoc analysis of influence of time, different lesions, side of jugular venous catheter ... propofol are known to dosedependently suppress neuronal activity and cerebral metabolism [28] To avoid difficult interpretation of the cerebral metabolic parameters due to differing depth of sedation...
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Báo cáo y học: " Extension of Murray''''s law using a non-Newtonian model of blood flow" pptx
Ngày tải lên :
13/08/2014, 16:21
... function of the length lk of the vessel k and the properties of blood, Qκ is the mass flow rate of blood and Rκ is the radius of the vessel k The parameters a and b are only function of the fluid ... Behavior of Blood In PhD Thesis University of Pittsburgh, Pittsburgh, PA; 1996 Sequeira A, Janela J: An Overview of Some Mathematical Models of Blood Rheology In A Portrait of State -of- the-Art ... sort of maintenance cost of the blood volume In other words, the metabolic rate of energy required to maintain the volume of blood The cost function can be written as: The second derivative of...
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ROLE OF ADENOSINE A1 RECEPTORS IN NATIVE CORONARY ATHEROSCLEROSIS, IN-STENT STENOSIS, AND CORONARY BLOOD FLOW REGULATION IN METABOLIC SYNDROME AND EXERCISE
Ngày tải lên :
24/08/2014, 13:30
... receptors contribution to coronary blood flow 67 3.4.4 Adenosine A1 receptors contribution to coronary blood flow 68 3.4.5 Comparison of coronary blood flow in control and dyslipidemic ... pharmacological antagonism of A1R holds promise for treatment of CAD Michael S Sturek, PhD, Chair vi TABLE OF CONTENTS LIST OF TABLES xiv LIST OF FIGURES xv LIST OF ABBREVIATIONS ... and regulation of coronary blood flow (CBF) We utilized the Ossabaw swine model of metabolic syndrome (MetS) to test the hypothesis that A1R activation contributes to development of CAD, in-stent...
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Rheological aspect of cell free layer formation in micro blood flow experimental and numerical study
Ngày tải lên :
09/09/2015, 10:14
... important determinant of blood flow In particular, its impact on blood circulation would be more significant in micro -blood flow than in macro -blood flowsince the ratio of CFL width to vessel ... 16 Figure I-7: Flow chart of CHAPTER II 17 Figure I-8: Flow chart of CHAPTER III 18 Figure I-9: Flow chart of CHAPTER IV 19 Figure I-10: Flow chart of CHAPTER V ... multidisciplinary study on the suspension of blood, which includes blood rheology, cell mechanics and physiology Blood, a vital fluid of humans, is a concentrated suspension of cells and cell fragments in...
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