Academic literature on the topic 'Circulation cérébrale'
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Journal articles on the topic "Circulation cérébrale"
Dupui, P., and G. Géraud. "Régulation de la circulation cérébrale." EMC - Neurologie 3, no. 2 (January 2006): 1–14. http://dx.doi.org/10.1016/s0246-0378(06)39083-5.
Full textFLORENCE, Geneviève. "La physiologie de la circulation cérébrale." Bulletin de l'Académie vétérinaire de France, no. 1 (2004): 19. http://dx.doi.org/10.4267/2042/47708.
Full textMonsuez, J. J. "Thomas Willis et la circulation cérébrale." Archives des Maladies du Coeur et des Vaisseaux - Pratique 2012, no. 213 (December 2012): 49–50. http://dx.doi.org/10.1016/s1261-694x(12)70450-9.
Full textPinard, E. "Monoxyde d'azote et régulation de la circulation cérébrale." Archives de Pédiatrie 3 (January 1996): S278—S279. http://dx.doi.org/10.1016/0929-693x(96)86067-2.
Full textBard, M., S. Soize, A. Thiriaux, and V. Legros. "Syndrome d’embolie graisseuse cérébrale post-traumatique." Médecine Intensive Réanimation 27, no. 5 (June 6, 2018): 479–83. http://dx.doi.org/10.3166/rea-2018-0038.
Full textBolshardy, N., E. Frebet, M. Guyon, G. Rezzadori, and A. Delhumeau. "Effets de la Position Génu Pectorale sur la Circulation Cérébrale." Annales Françaises d'Anesthésie et de Réanimation 12, no. 12 (1993): R255. http://dx.doi.org/10.1016/s0750-7658(16)30255-6.
Full textBossuet, Philippe, Jean Fuseri, Jean-Pierre Marc-Vergnes, Mokhtar Zagzoule, and Francis Cassot. "Étude physique et numérique de la circulation cérébrale en pathologie carotidienne." Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Astronomy 327, no. 10 (September 1999): 1039–46. http://dx.doi.org/10.1016/s1287-4620(00)87017-9.
Full textAtkinson, J., F. Dupuis, and J. M. Chillon. "Système rénine-angiotensine-aldostérone : vieux système mais piste stratégique de régulation de la circulation cérébrale." Annales Pharmaceutiques Françaises 65, no. 3 (May 2007): 195–202. http://dx.doi.org/10.1016/s0003-4509(07)90036-x.
Full textBrouh, Y., O. Paut, G. Léna, A. Paz-Paredes, and J. Camboulives. "Le syndrome du bébé secoué : amélioration de la circulation cérébrale après dérivation sous-durale externe chez un nourrisson de six mois." Annales Françaises d'Anesthésie et de Réanimation 21, no. 8 (October 2002): 676–80. http://dx.doi.org/10.1016/s0750-7658(02)00698-6.
Full textSoize, S., G. Gunning, K. McArdle, M. Mirza, M. Gilvarry, and L. Pierot. "Influence de la vitesse de retrait sur l’efficacité de la technique Apsiration-Retriever : étude sur modèle de circulation cérébrale in vitro avec différents thrombus." Journal of Neuroradiology 45, no. 2 (March 2018): 91–92. http://dx.doi.org/10.1016/j.neurad.2018.01.012.
Full textDissertations / Theses on the topic "Circulation cérébrale"
Clavier, Nathalie. "La Régulation de la circulation cérébrale dans les pathologies de réanimation." Paris 11, 1998. http://www.theses.fr/1998PA11T058.
Full textLe, Mée Fabrice. "Protection cérébrale par perfusion cérébrale sélective dans la chirurgie de la crosse aortique." Bordeaux 2, 1993. http://www.theses.fr/1993BOR23013.
Full textNourhashemi, Mina. "Analyse multimodale du couplage neurovasculaire chez le nouveau-né." Thesis, Amiens, 2018. http://www.theses.fr/2018AMIE0059/document.
Full textNeurovascular coupling (NVC) has become the key aspect for understanding brain function. A multimodal exploration would aim to identify the early NVC biomarkers and determine their predictive character. Paper (1): In this chapter, the photothermal interaction of NIR laser on human tissues were modelled in silico. The results demonstrated the safety of the noninvasive optical evaluation of the brain function and the maximum temperature increase was higher in the neonatal brain than in the adult brain. Paper (2 & 3): The main purpose of this thesis was to provide a multimodal view of the NVC and cerebrovascular regulation in the neonatal premature brain. Paper (2): Key findings included that rCBV and rCMRO2 have a predominant driving influence on rCBF at the resting-state in the preterm neonatal brain. Paper (3): The bursts of electroencephalographic activity in neonates in resting state were found to be coupled to a transient hemodynamic response involving different types of hemodynamic response including: (a) positive stereotyped hemodynamic responses (increases in HbO, decreases in HbR together with increases in CBF and CMRO2), (b) negative hemodynamic responses (increases in HbR, decreases in HbO together with decreases in CBF and CMRO2), (c) Increases and decreases in both HbO-HbR and CMRO2 together with no changes in CBF. The establishment of neurovascular coupling system was observed as a function of age. High coherence was observed between the cerebral hemodynamic (vascular) and electrical (neuronal) oscillations which was less in the non-encephalopathic newborns than in the two pathological groups
Chérif-Fakhfakh, Sarra. "Etudes expérimentale et numérique de l'écoulement du sang dans la macrocirculation cérébrale en pathologie carotidienne." Toulouse 3, 2002. http://www.theses.fr/2002TOU30231.
Full textChuquet, Julien. "Etude de l'implication de l'endothéline et de l'urotensine-II dans la circulation cérébrale et l'ischémie cérébrale focale chez le rat." Caen, 2003. http://www.theses.fr/2003CAEN2083.
Full textNasr, Nathalie. "L' autorégulation dynamique de la circulation cérébrale : étude physiopathologique dans les situations à risque cérébrovasculaire." Toulouse 3, 2011. http://thesesups.ups-tlse.fr/1469/.
Full textAutoregulation of cerebral blood flow is a homeostatic mechanism which limits the variations of cerebral blood flow when the arterial blood pressure (ABP) changes. The so-called static autoregulation refers to stability of cerebral blood flow when ABP is increased or reduced in a steady fashion on prolonged periods of time. The dynamic approach of cerebral autoregulation is based on the analysis of the rapid adaptive response of cerebral arteries to acute changes in ABP to restore cerebral blood flow to baseline. We assessed dynamic cerebral autoregulation (DCA) in three situations associated with an increased risk of cerebral ischemia: obstructive sleep apnea syndrome, Type 1 diabetes with cardiovascular autonomic neuropathy, and stenosis and occlusions of the cervical carotid artery due to atherosclerosis. DCA was assessed from slow changes in mean cerebral blood flow velocity and mean ABP which were analysed over time using a custom-made validated algorithm. We found a significant impairment of DCA in the three pathological situations that we addressed. In obstructive sleep apnea syndrome, DCA impairment was probably caused by the residual impact of hypercapnia because it correlated to the apnea-hypopnea index. In type 1 diabetes, DCA impairment correlated to the severity of cardiovascular autonomic neuropathy. In atherosclerotic stenosis and occlusions of the cervical carotid artery, DCA impairment inversely correlated to baroreflex sensitivity. In type 1 diabetes with cardiovascular autonomic neuropathy and in carotid atherosclerosis, our results suggest that sympathetic activity enhances DCA. Our research shows that the pathological situations and pathways that can alter DCA are numerous. The physiopathological changes associated with these medical situations can explain a reduction in cerebral vasomotor tone which is responsible for DCA impairment. Further studies are needed to assess the impact of DCA impairment on stroke risk
Chassagnon, Serge. "Imagerie de perfusion des crises épileptiques temporo-limbiques : zones épileptogènes et non épileptogènes." Université Louis Pasteur (Strasbourg) (1971-2008), 2006. https://publication-theses.unistra.fr/restreint/theses_doctorat/2006/CHASSAGNON_Serge_2006.pdf.
Full textTo assess the contribution of the ictal SPECT to the definition of the epileptogenic zone (EZ) prior to surgery in focal drug-resistant epilepsies, we investigated the effect of the variability of clinical and technical parameters upon patterns of perfusion, that could account for ictal cerebral blood flow (CBF) changes beyond the EZ. We studied CBF patterns in a rat model of amygdala-kindled seizures to assess the influence of the timing of injection of the tracer and the extent of seizure spread, with respect to a control group (interictal CBF measurements in kindled rats), during secondary generalized (SGS, n=26 fully-kindled rats) and focal seizures (FS, n=19 partially kindled rats), in 29 regions of interest, with the quantitative [14C]-iodoantipyrine autoradiographic method. During SGS, the correct lateralization and localization of the focus within limbic structures was only possible at early ictal and post-ictal times, in between we observed widespread rCBF increases. The switch from hyper to hypoperfusion was observed at the time of late ictal injection. The accurate localization of the EZ was obtained for the study of the more FS (stage 0). At stage 1 of the kindling, there was already widespread spreading of hyperperfusion. In humans, we studied 26 pairs of ictal and interictal SPECTs from patients with mesial temporal lobe epilepsy, classified in 3 groups according to the progression of ictal semiology. Using visual analysis of subtracted SPECTs (SISCOM) and group comparisons with a control group (using SPM), we observed more widespread combined hyper and hypoperfusion with the increasing complexity and duration of seizures at the time of the ictal SPECT. In the first group with motionless seizures, SISCOM analysis allowed correct localization of the focus in 4/8 patients, whereas SPM analysis failed to detect significant changes, due to individual variation, spatial normalization and small magnitude of CBF changes. In seizures with impairement of consciousness and automatisms (group 2) and dystonic posturing (group 3), SISCOM and SPM analysis showed antero-mesial temporal hyperperfusion (overlapping the EZ), extending to the insula, basal ganglia, and thalamus in the third group. Ictal hypoperfusion involved pre-frontal and parietal regions, the anterior and posterior cingulate gyri, with a greater extent in the 3rd group. In both human and animals studies, we observed a positive correlation between the spatial extent of composite patterns of hyper/hypoperfusion and the severity of seizures, as well as the recruitment of remote sub-cortical structures. We suggest that ictal purposeless human motor automatisms in MTLE results from the hypoactivity of the above mentioned set of hypoperfused areas, whose role in perceptual decision making and motor planning is transiently disrupted under the effect of hyperactive temporo-limbic structures
Callebert, Jacques. "Implication de l'adénosine et de la prostacycline dans la régulation métabolique de la circulation cérébrale." Paris 5, 1989. http://www.theses.fr/1989PA05P503.
Full textDesjardins, Michèle. "Imagerie multimodale des corrélats vasculaires du vieillissement cérébral." Paris 6, 2013. http://www.theses.fr/2013PA066774.
Full textSeveral decades of research have demonstrated that aging affects a multitude of components in the brain. In particular, evidence is accumulating on the relation between brain function and vascular health, including cerebral blood flow (CBF), which decreases with age, and cardiopulmonary health which could correlate with cognitive performance according to some studies. Several brain imaging techniques commonly used in research, such as the blood oxygenation level dependent signal in magnetic resonance imaging (BOLD-MRI), are based on the vascular correlates of neural activity. This makes them suitable tools for the study of the vascular effects of aging, which directly influence the measured signals. This thesis used several imaging modalities based on hemodynamics to study the effects of aging on the brain at different spatial scales, in humans and in an animal model, the rat. Initially, two-photon microscopy was used to measure the velocity of red blood cells (RBCs), the diameter and the density of capillaries and the local hematocrit in nearly 1000 capillaries in 12 young (3 months-old) and 12 aged anesthetized Long-Evans rats (24 months-old). We measured higher RBCs velocity and diameter in the capillaries of aged rats (by 48 and 7 % respectively), while the hematocrit and volumetric capillary density were lower (by 32 and 20 %). These results suggest that the decrease in CBF with age is due primarily to a decrease in vascular density. Second, MRI and time-resolved spectroscopy were used to measure the CBF, oxygenation (sO2) and total hemoglobin concentration (HbT) in the brains of young (18-30 years-old) and elderly (62-72 years-old) humans, in addition to the response to a cognitive Stroop task in terms of BOLD and CBF. Cardiorespiratory fitness was measured by a VO2max test. In the left prefrontal cortex activated by the Stroop task, we measured lower values of CBF (by 19%), sO2 (by 6%) and HbT (by 21%) in the elderly. In the older group, measures of sO2 were correlated with Stroop task cognitive performance and with VO2max, while CBF and HbT were not. These results suggest a protective effect of physical activity on cognitive health in aging, mediated by an improvement in cerebral oxygenation. Finally, the same groups of young and old rats were subjected to a vasodilating stimulus, hypercapnia, for measuring the hemodynamic response with several imaging modalities. The data demonstrated a decrease in the hemodynamic response to hypercapnia in terms of CBF, HbT and HbO (oxygenated hemoglobin) in aged rats, suggesting decreased vascular reactivity
Bossuet, Philippe. "Simulation in vitro de la macrocirculation cérébrale en pathologie carotidienne : comparaison aux données de la simulation numérique." Toulouse, INPT, 1997. http://www.theses.fr/1997INPT060H.
Full textBooks on the topic "Circulation cérébrale"
NATO Advanced Research Workshop on Regulatory Mechanisms of Neuron to Vessel Communication in the Brain. Regulatory mechanisms of neuron to vessel communication in the brain. Berlin: Springer-Verlag, 1989.
Find full textGert, Pfurtscheller, and Lopes da Silva, F. H., 1935-, eds. Functional brain imaging. Toronto: Hans Huber Publishers, 1988.
Find full textPorter, R. Exploring Brain Functional Anatomy with Positron Tomography. Wiley & Sons, Incorporated, John, 2014.
Find full textBook chapters on the topic "Circulation cérébrale"
Ter Minassian, Aram. "Métabolisme et circulation cérébrale: modifications liées à l’agression cérébrale." In La réanimation neurochirurgicale, 15–42. Paris: Springer Paris, 2007. http://dx.doi.org/10.1007/978-2-287-68199-8_1.
Full textTer Minassian, Aram. "Surveillance de la circulation cérébrale par Doppler transcrânien en réanimation neurochirurgicale." In La réanimation neurochirurgicale, 99–120. Paris: Springer Paris, 2007. http://dx.doi.org/10.1007/978-2-287-68199-8_6.
Full textAmiel-Tison, Claudine, and Julie Gosselin. "Circulation cérébrale." In Pathologie neurologique périnatale et ses conséquences, 23–27. Elsevier, 2010. http://dx.doi.org/10.1016/b978-2-294-70895-4.00003-7.
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