Relevant bibliographies by topics / Intracranial blood volume waves

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Academic literature on the topic 'Intracranial blood volume waves'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Intracranial blood volume waves"

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Hayashi, Minoru, Hidenori Kobayashi, Yuji Handa, Hirokazu Kawano, and Masanori Kabuto. "Brain blood volume and blood flow in patients with plateau waves." Journal of Neurosurgery 63, no. 4 (1985): 556–61. http://dx.doi.org/10.3171/jns.1985.63.4.0556.

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✓ Plateau waves, characterized by acute transient rises of the intracranial pressure (ICP), are accompanied by a marked decrease of the cerebral perfusion pressure. Patients with plateau waves, however, often show no clinical symptoms of ischemia of the brain stem, such as vasopressor response or impairment of consciousness during the waves. The authors studied brain blood volume and blood flow with dynamic computerized tomography using rapid-sequence scanning in patients with plateau waves identified during continuous ICP recording. Following an intravenous bolus injection of contrast medium,
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Czosnyka, Marek, Piotr Smielewski, Stefan Piechnik, et al. "Hemodynamic characterization of intracranial pressure plateau waves in head-injured patients." Journal of Neurosurgery 91, no. 1 (1999): 11–19. http://dx.doi.org/10.3171/jns.1999.91.1.0011.

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Object. Plateau waves of intracranial pressure (ICP) are often recorded during intensive care monitoring of severely head injured patients. They are traditionally interpreted as meaningful secondary brain insults because of the dramatic decrease in cerebral perfusion pressure (CPP). The aim of this study was to investigate both the hemodynamic profile and the clinical consequences of plateau waves.Methods. One hundred sixty head-injured patients were studied using continuous monitoring of ICP; almost 20% of these patients exhibited plateau waves. In 96 patients arterial pressure, ICP, and tran
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Ursino, Mauro, and Carlo Alberto Lodi. "A simple mathematical model of the interaction between intracranial pressure and cerebral hemodynamics." Journal of Applied Physiology 82, no. 4 (1997): 1256–69. http://dx.doi.org/10.1152/jappl.1997.82.4.1256.

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Ursino, Mauro, and Carlo Alberto Lodi. A simple mathematical model of the interaction between intracranial pressure and cerebral hemodynamics. J. Appl. Physiol. 82(4): 1256–1269, 1997.—A simple mathematical model of intracranial pressure (ICP) dynamics oriented to clinical practice is presented. It includes the hemodynamics of the arterial-arteriolar cerebrovascular bed, cerebrospinal fluid (CSF) production and reabsorption processes, the nonlinear pressure-volume relationship of the craniospinal compartment, and a Starling resistor mechanism for the cerebral veins. Moreover, arterioles are co
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Hayashi, Minoru, Hisamasa Ishii, Yuji Handa, Hidenori Kobayashi, Hirokazu Kawano, and Masanori Kabuto. "Role of the medulla oblongata in plateau-wave development in dogs." Journal of Neurosurgery 67, no. 1 (1987): 97–101. http://dx.doi.org/10.3171/jns.1987.67.1.0097.

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✓ Plateau waves reflect both dilatation of the cerebral vessels and an increase in the cerebral blood volume under increased intracranial pressure (ICP). They are often associated with changes in arterial blood pressure (BP) and respiration, suggesting a role of the brain stem in their development. In experiments conducted on dogs in which intracranial hypertension was induced by occluding the neck veins, the authors stimulated the brain-stem reticular formation in the medulla oblongata and caudal pons to identify the brain sites that produce plateau-like responses. A rise in ICP was observed
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Beqiri, Erta, Marek Czosnyka, Afroditi D. Lalou, et al. "Influence of mild-moderate hypocapnia on intracranial pressure slow waves activity in TBI." Acta Neurochirurgica 162, no. 2 (2019): 345–56. http://dx.doi.org/10.1007/s00701-019-04118-6.

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Abstract Background In traumatic brain injury (TBI) the patterns of intracranial pressure (ICP) waveforms may reflect pathological processes that ultimately lead to unfavorable outcome. In particular, ICP slow waves (sw) (0.005–0.05 Hz) magnitude and complexity have been shown to have positive association with favorable outcome. Mild-moderate hypocapnia is currently used for short periods to treat critical elevations in ICP. Our goals were to assess changes in the ICP sw activity occurring following sudden onset of mild-moderate hypocapnia and to examine the relationship between changes in ICP
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Austin, George M., George M. Austin, Wouter Schievink, and Richard Williams. "Controlled Pressure-Volume Factors in the Enlargement of Intracranial Aneurysms." Neurosurgery 24, no. 5 (1989): 722–30. http://dx.doi.org/10.1227/00006123-198905000-00011.

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ABSTRACT Pressure-volume relations were investigated on a model aneurysm wall made of elastic tissue and collagen. The model wall had a Young's Modulus of 2 × 107 dynes/cm2, approximating the elastance of fresh aneurysm walls obtained at autopsy. The model wall was fixed over the top of a glass T-tube, 6 mm in diameter. Pressure pulse waves of water or outdated human blood entered at the bottom of the T-tube and exited by way of a controlled resistance, while pressure was monitored by a strain gauge and recorded on an ink writer from the other arm. Incremental increases in systolic pressure pr
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Luciano, Mark G., Stephen M. Dombrowski, Sara Qvarlander, et al. "Novel method for dynamic control of intracranial pressure." Journal of Neurosurgery 126, no. 5 (2017): 1629–40. http://dx.doi.org/10.3171/2016.4.jns152457.

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OBJECTIntracranial pressure (ICP) pulsations are generally considered a passive result of the pulsatility of blood flow. Active experimental modification of ICP pulsations would allow investigation of potential active effects on blood and CSF flow and potentially create a new platform for the treatment of acute and chronic low blood flow states as well as a method of CSF substance clearance and delivery. This study presents a novel method and device for altering the ICP waveform via cardiac-gated volume changes.METHODSThe novel device used in this experiment (named Cadence) consists of a small
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Schmidt, Bernhard, Marek Czosnyka, Jens Jürgen Schwarze, et al. "Cerebral Vasodilatation Causing Acute Intracranial Hypertension: A Method for Noninvasive Assessment." Journal of Cerebral Blood Flow & Metabolism 19, no. 9 (1999): 990–96. http://dx.doi.org/10.1097/00004647-199909000-00006.

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Deep spontaneous vasodilatatory events are frequently recorded in various cerebral diseases, causing dramatic increases (A-waves) in intracranial pressure (ICP) and subsequently provoking ischemic brain insults, The relationship between fluctuations in CBF, ICP, and arterial blood pressure (ABP) is influenced by properties of cerebrovascular control mechanisms and the cerebrospinal pressure-volume compensation, The goal of this study was to construct a mathematical model of this relationship and to assess its ability to predict the occurrence and time course of A-waves, A group of 17 severely
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Ursino, Mauro, and Patrizia Di Giammarco. "A mathematical model of the relationship between cerebral blood volume and intracranial pressure changes: The generation of plateau waves." Annals of Biomedical Engineering 19, no. 1 (1991): 15–42. http://dx.doi.org/10.1007/bf02368459.

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Langvatn, Erlend Aambø, Radek Frič, Bernt J. Due-Tønnessen, and Per Kristian Eide. "Intracranial volume versus static and pulsatile intracranial pressure values in children with craniosynostosis." Journal of Neurosurgery: Pediatrics 24, no. 1 (2019): 66–74. http://dx.doi.org/10.3171/2019.2.peds18767.

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OBJECTIVEReduced intracranial volume (ICV) and raised intracranial pressure (ICP) are assumed to be principal pathophysiological mechanisms in childhood craniosynostosis. This study examined the association between ICV and ICP and whether ICV can be used to estimate the ICP.METHODSThe authors analyzed ICV and ICP measurements from children with craniosynostosis without concurrent hydrocephalus and from age-matched individuals without craniosynostosis who underwent diagnostic ICP measurement.RESULTSThe study included 19 children with craniosynostosis (mean age 2.2 ± 1.9 years) and 12 reference
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Dissertations / Theses on the topic "Intracranial blood volume waves"

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Chomskis, Romanas. "Programinė įranga cerebralinės kraujotakos autoreguliacijos stebėsenos signalų analizei." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070108_175459-97039.

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Newly created software is presented in magister degree thesis. The software was created for the innovative non–invasive cerebral blood flow autoregulation monitor which has no analogy in the global high tech market. It will be possible at first time to get diagnostic information about the cerebral blood flow autoregulation status of patient with severe brain injuries using such non–invasive monitoring technology in clinical practice. That will help with the individual treatment decision making. Clinical studies were conducted in neurosurgical intensive care units using created software. It has
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Behrens, Anders. "Measurements in Idiopathic Normal Pressure Hydrocephalus : Computerized neuropsychological test battery and intracranial pulse waves." Doctoral thesis, Umeå universitet, Klinisk neurovetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-96195.

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Idiopathic Normal Pressure Hydrocephalus (INPH) is a condition affecting gait, cognition and continence. Radiological examination reveals enlarged ventricles of the brain. A shunt that drains CSF from the ventricles to the abdomen often improves the symptoms. Much research on INPH has been focused on identifying tests that predict the outcome after shunt surgery. As part of this quest, there are attempts to find measurement methods of intracranial parameters that are valid, reliable, tolerable and safe for patients. Today's technologies for intracranial pressure (ICP) measurement are invasive,
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Saladin, Lisa Kristine. "The effects of vasopressin on intracranial pressure, cerebral blood flow and cerebral blood volume in the rat." 1990. http://hdl.handle.net/1993/17291.

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Books on the topic "Intracranial blood volume waves"

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Sharma, Deepak, and Julia Metzner. Nontraumatic Intracranial Hemorrhage. Edited by Matthew D. McEvoy and Cory M. Furse. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780190226459.003.0062.

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Nontraumatic subarachnoid, intraventricular, or intraparenchymal hemorrhage can be caused by either rupture of an aneurysm or arteriovenous malformation or by coagulopathy, hypertension, or vasculitis. Pituitary apoplexy results from spontaneous hemorrhage or infarction into a pituitary tumor. Additionally, anesthesiologists must be prepared to manage intraoperative bleeding during craniotomies. Successful management of nontraumatic intracranial hemorrhage requires (1) careful preoperative evaluation and preparation considering extracranial manifestations of intracranial bleeding; (2) administ
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Whittle, Ian. Raised intracranial pressure, cerebral oedema, and hydrocephalus. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780198569381.003.0604.

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The brain is protected by the cranial skeleton. Within the intracranial compartment are also cerebrospinal fluid, CSF, and the blood contained within the brain vessels. These intracranial components are in dynamic equilibrium due to the pulsations of the heart and the respiratory regulated return of venous blood from the brain. Normally the mean arterial blood pressure, systemic venous pressure, and brain volume are regulated to maintain physiological values for intracranial pressure, ICP. There are a range of very common disorders such as stroke, and much less common, such as idiopathic intra
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Howe, Peter. Craniosynostosis Repair. Oxford University Press, 2013. http://dx.doi.org/10.1093/med/9780199764495.003.0028.

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Craniosynostosis is a condition in which one or more of the fibrous sutures in an infant skull fuses prematurely. This may lead to restricted skull and brain growth and elevated intracranial pressure. Many children with craniosynostosis undergo corrective cranioplasty in infancy, an age when the skull is relatively large in proportion to the rest of the body. Depending on the operation, it is common for blood loss to be substantial and exceed the child's estimated blood volume (EBV). Managing this blood loss is challenging and requires careful planning for fluid and blood product administratio
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Leys, Didier, Charlotte Cordonnier, and Valeria Caso. Stroke. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199687039.003.0067_update_002.

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Stroke is a major public health issue. Many are treatable in the acute stage, provided patients are admitted soon enough. The overall incidence of stroke in Western countries is approximately 2400 per year per million inhabitants, and 80% are due to cerebral ischaemia. The prevalence is approximately 12 000 per million inhabitants. Stroke is associated with increased long-term mortality, handicap, cognitive and behavioural impairments, recurrence, and an increased risk of other types of vascular events. It is of major interest to take the heterogeneity of stroke into account, because of differ
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Leys, Didier, Charlotte Cordonnier, and Valeria Caso. Stroke. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199687039.003.0067.

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Stroke is a major public health issue. Many are treatable in the acute stage, provided patients are admitted soon enough. The overall incidence of stroke in Western countries is approximately 2400 per year per million inhabitants, and 80% are due to cerebral ischaemia. The prevalence is approximately 12 000 per million inhabitants. Stroke is associated with increased long-term mortality, handicap, cognitive and behavioural impairments, recurrence, and an increased risk of other types of vascular events. It is of major interest to take the heterogeneity of stroke into account, because of differ
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Leys, Didier, Charlotte Cordonnier, and Valeria Caso. Stroke. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199687039.003.0067_update_001.

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Stroke is a major public health issue. Many are treatable in the acute stage, provided patients are admitted soon enough. The overall incidence of stroke in Western countries is approximately 2400 per year per million inhabitants, and 80% are due to cerebral ischaemia. The prevalence is approximately 12 000 per million inhabitants. Stroke is associated with increased long-term mortality, handicap, cognitive and behavioural impairments, recurrence, and an increased risk of other types of vascular events. It is of major interest to take the heterogeneity of stroke into account, because of differ
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Book chapters on the topic "Intracranial blood volume waves"

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Rosner, M. J. "Cyclic CSF Pressure Waves Causally Relate to Systemic Arterial Blood Pressure." In Intracranial Pressure VIII. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77789-9_89.

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Dirnagl, U., C. Garner, R. Haberl, D. Mautner, P. Schmiedek, and K. M. Einhäupl. "Correlation Between B-Waves and Intracranial Pressure — Volume Relationships." In Intracranial Pressure VII. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-73987-3_58.

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Newell, D. W., R. Aaslid, R. Stooss, and H. J. Reulen. "Spontaneous Fluctuations in Cerebral Blood Flow as a Cause of B Waves." In Intracranial Pressure VIII. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77789-9_91.

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Ishikawa, M., H. Handa, S. Yoshida, O. Hirai, and K. Imadaka. "Continuous Measurement of Local Cerebral Blood Volume by Reflectance Photometry." In Intracranial Pressure VI. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-70971-5_74.

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Roberts, P. A., S. C. Kim, P. Tompkins, and M. Pollay. "Brain Blood Volume and Cerebral Hemodynamics in the Anesthetized Rat." In Intracranial Pressure VIII. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77789-9_144.

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Roberts, P. A., J. E. Moragne, G. Williams, et al. "The Effect of Rapid Mannitol Infusion on Cerebral Blood Volume." In Intracranial Pressure VII. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-73987-3_123.

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Marmarou, A., and A. Wachi. "Blood Volume Responsivity to ICP Change in Head Injured Patients." In Intracranial Pressure VII. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-73987-3_179.

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Kojima, T., K. Iwat, and K. Tamai. "Change of Cerebral Electrophysiological Activity, Regional Cerebral Blood Flow and Regional Cerebral Blood Volume in Acute Intracranial Hypertension." In Intracranial Pressure VIII. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77789-9_52.

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Bouma, G. J., J. P. Muizelaar, R. Schuurman, P. Fatouros, and A. Marmarou. "Cerebral Blood Volume in Acute Head Injury: Relationship to CBF and ICP." In Intracranial Pressure VIII. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77789-9_115.

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Hirai, O., H. Handa, and M. Ishikawa. "Cerebral Blood Volume as Another Cause of Intracranial Hypertension Following Cold-Induced Edema." In Intracranial Pressure VI. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-70971-5_27.

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Conference papers on the topic "Intracranial blood volume waves"

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Shahsavari, Sima, and Tomas McKelvey. "Harmonics tracking of intracranial and arterial blood pressure waves." In 2008 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2008. http://dx.doi.org/10.1109/iembs.2008.4649745.

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Irene, Kezia, M. Anwar Ma'sum, Reyhan Eddy Yunus, and Wisnu Jatmiko. "Segmentation and Approximation of Blood Volume in Intracranial Hemorrhage Patients Based on Computed Tomography Scan Images Using Deep Learning Method." In 2020 International Workshop on Big Data and Information Security (IWBIS). IEEE, 2020. http://dx.doi.org/10.1109/iwbis50925.2020.9255593.

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Tulshibagwale, Nikhil, and Stephen P. Gent. "Simulating Coil Embolization Treatments of Intracranial Aneurysms Using Computational Fluid Dynamics." In 2019 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/dmd2019-3222.

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In this study, a commercially available computational fluid dynamics (CFD) program was used to simulate coil embolization techniques, standard coiling (SC) and stent-assisted coiling (SAC), in simplified vessels that are representative of vessels found in the brain. The test models included a curved vessel, ranging from 3mm to 4mm in diameter. The vessel was afflicted with a spherical aneurysm, ranging from 8mm to 16mm in diameter. The four test cases were simulated without treatment, with SC treatment, and with SAC treatment, for a total of twelve simulations. The parameters of interest were
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Nakayama, Toshio, Shinkyu Jeong, Srinivas Karkenahalli, and Makoto Ohta. "Development of Stent Strut Pattern for Cerebral Aneurysm." In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30592.

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Background and purpose: Stent implantation (stenting) in intracranial arteries is termed as endovascular treatment. The number of such cases has been increasing worldwide because the surgical damage resulting from stenting seem to be less than that of other treatments. The role of stenting for cerebral aneurysms is to reduce the blood flow speed in cerebral aneurysms. We have developed a computational fluid dynamics (CFD) system using a realistic stent and blood vessel and have studied the effect of the stent. Results of our study showed the stent strut pattern and stenting position to be very
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Shah, Alok S., Brian D. Stemper, Narayan Yoganandan, and Barry S. Shender. "Quantification of Shockwave Transmission Through the Cranium Using an Experimental Model." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14356.

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Studies have hypothesized mechanisms for brain injury resulting from exposure to blast waves. Theories include shockwaves increasing fluid pressure within brain tissue by transmitting through bones and blood vessels 1, indirect brain tissue damage due to ischemia from pulmonary blast injury 2, and formation of mechanical stresses that can result in tissue distortion 3. Mechanical damage to brain tissue can occur due to skull flexure resulting in loads typically seen in impact-induced injury 4 or axonal shearing/stretching, due to linear or rotational accelerations resulting in Diffuse Axonal I
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Tubaldi, Eleonora, Marco Amabili, and Michael P. Paidoussis. "Nonlinear Response of Shells Conveying Pulsatile Flow With Pulse-Wave Propagation." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66840.

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In deformable shells conveying pulsatile flow, oscillatory pressure changes cause local movements of the fluid and shell wall, which propagate downstream in the form of a wave. In biomechanics, it is the propagation of the pulse that determines the pressure gradient during the flow at every location of the arterial tree. In this study, a woven Dacron vascular prosthesis is modelled as a transversely isotropic circular cylindrical shell described by means of nonlinear Novozhilov shell theory. Flexible boundary conditions are considered to simulate connection with the remaining tissue. Nonlinear
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