Search Results - "Alperin, N."

MRI evidence of impaired CSF homeostasis in obesity-associated idiopathic intracranial hypertension by Alperin, N, Ranganathan, S, Bagci, A M, Adams, D J, Ertl-Wagner, B, Saraf-Lavi, E, Sklar, E M, Lam, B L

“…Impaired CSF homeostasis and altered venous hemodynamics are proposed mechanisms for elevated pressure in IIH. However, the lack of ventricular expansion…”
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Automated Quantitation of Spinal CSF Volume and Measurement of Craniospinal CSF Redistribution following Lumbar Withdrawal in Idiopathic Intracranial Hypertension by Alperin, N, Bagci, A M, Lee, S H, Lam, B L

“…Automated methods for quantitation of tissue and CSF volumes by MR imaging are available for the cranial but not the spinal compartment. We developed an…”
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Decreased Craniocervical CSF Flow in Patients with Normal Pressure Hydrocephalus: A Pilot Study by Stöcklein, S M, Brandlhuber, M, Lause, S S, Pomschar, A, Jahn, K, Schniepp, R, Alperin, N, Ertl-Wagner, B

“…Normal pressure hydrocephalus is characterized by systolic peaks of raised intracranial pressure, possibly due to a reduced compliance of the spinal CSF…”
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Aqueductal Stroke Volume: Comparisons with Intracranial Pressure Scores in Idiopathic Normal Pressure Hydrocephalus by Ringstad, G, Emblem, K E, Geier, O, Alperin, N, Eide, P K

“…Aqueductal stroke volume from phase-contrast MR imaging has been proposed for predicting shunt response in normal pressure hydrocephalus. However, this…”
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Flow-area relationship in internal carotid and vertebral arteries by Cebral, J R, Castro, M A, Putman, C M, Alperin, N

“…Subject-specific computational and experimental models of hemodynamics in cerebral aneurysms require the specification of physiologic flow conditions. Because…”
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Automated quantitation of the posterior scleral flattening and optic nerve protrusion by MRI in idiopathic intracranial hypertension by Alperin, N, Bagci, A M, Lam, B L, Sklar, E

“…Subjective determination of the posterior sclera flattening and optic nerve protrusion in MRI is challenging because of the 3D nature of the globe morphology…”
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Automated posterior cranial fossa volumetry by MRI: applications to Chiari malformation type I by Bagci, A M, Lee, S H, Nagornaya, N, Green, B A, Alperin, N

“…Quantification of PCF volume and the degree of PCF crowdedness were found beneficial for differential diagnosis of tonsillar herniation and prediction of…”
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Multiparametric evaluation of preoperative MRI in early stage breast cancer: prognostic impact of peri-tumoral fat by Obeid, J.-P., Stoyanova, R., Kwon, D., Patel, M., Padgett, K., Slingerland, J., Takita, C., Alperin, N., Yepes, M., Zeidan, Y. H.

“…Purpose Obesity is associated with adverse outcomes in breast cancer patients. Fat-specific cytokines (adipokines) have been proposed as key drivers of breast…”
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Multiparametric Evaluation of Preoperative MRI in Early-Stage Breast Cancer: Prognostic Impact of Peritumoral Fat by Obeid, J.P, Stoyanova, R, Patel, M, Padgett, K.R, Slingerland, J, Takita, C, Pollack, A, Alperin, N, Yepes, M, Zeidan, Y

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MR-Intracranial pressure (ICP): a method to measure intracranial elastance and pressure noninvasively by means of MR imaging: baboon and human study by Alperin, N J, Lee, S H, Loth, F, Raksin, P B, Lichtor, T

“…To develop a noninvasive method for intracranial elastance and intracranial pressure (ICP) measurement. Intracranial volume and pressure changes were…”
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Angular Momentum of Topologically Structured Darkness by Alperin, Samuel N, Siemens, Mark E

“…We theoretically analyze and experimentally measure the extrinsic angular momentum contribution of topologically structured darkness found within fractional…”
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Assessment of Craniospinal Pressure-Volume Indices by WAHLIN, A, AMBARKI, K, BIRGANDER, R, ALPERIN, N, MALM, J, EKLUND, A

“…The PVI(CC) of the craniospinal compartment defines the shape of the pressure-volume curve and determines the damping of cyclic arterial pulsations. Despite no…”
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MRI study of cerebral blood flow and CSF flow dynamics in an upright posture: the effect of posture on the intracranial compliance and pressure by Alperin, N, Hushek, S G, Lee, S H, Sivaramakrishnan, A, Lichtor, T

“…Postural related changes in cerebral hemodynamics and hydrodynamics were studied using Magnetic Resonance Imaging (MRI) measurements of cerebral blood flow and…”
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Hydrodynamic modeling of cerebrospinal fluid motion within the spinal cavity by Loth, F, Yardimci, M A, Alperin, N

“…The fluid that resides within cranial and spinal cavities, cerebrospinal fluid (CSF), moves in a pulsatile fashion to and from the cranial cavity. This motion…”
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Emergence and Ordering of Polygonal Breathers in Polariton Condensates by Alperin, Samuel N., Berloff, Natalia G.

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Quantum Turbulent Structure in Light by Alperin, Samuel N, Grotelueschen, Abigail L, Siemens, Mark E

“…The infinite superpositions of random plane waves are known to be threaded with vortex line singularities which form complicated tangles and obey strict…”
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The role of multimorbidity and socio-economic characteristics as potential risk factors for Long Covid: evidence from the multilevel analysis of the Survey of Health, Ageing and Retirement in Europe’s corona surveys (2020–2021) by Wilk, Piotr, Moran, Valerie, Alperin, Maria N Pi, Bohn, Torsten, Fagherazzi, Guy, Zeegers, Maurice P, Ruiz-Castell, Maria

“…Abstract Background A substantial proportion of individuals continue experiencing persistent symptoms following the acute stage of their Covid-19 illness…”
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O.025 Noninvasive intracranial compliance from MRI-based measurements of transcranial blood and CSF Ffows: Indirect vs. direct approach by Alperin, N, Tang, R.W

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Evidence for the importance of extracranial venous flow in patients with idiopathic intracranial hypertension (IIH) by Alperin, N, Lee, S H, Mazda, M, Hushek, S G, Roitberg, B, Goddwin, J, Lichtor, T

“…Idiopathic intracranial hypertension (IIH) is characterized by increased ICP without evidence for intracranial mass lesion. Although the pathogenesis remains…”
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Post-cranioplasty cerebrospinal fluid hydrodynamic changes: Magnetic resonance imaging quantitative analysis by Dujovny, M., Fernandez, P., Alperin, N., Betz, W., Misra, Mukesh, Mafee, M.

“…The syndrome ofthe trephined has been described in many patients with cranial defects as an indication for cranioplasty. Cerebral blood flow changes, the…”
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