Search Results - "ORTEGA, H. V"

Algebraic solution and coherent states for the Dirac oscillator interacting with a topological defect by Salazar-Ramírez, M., Ojeda-Guillén, D., Morales-González, A., García-Ortega, V. H.

“… In this work we study and exactly solve the Dirac oscillator interacting with three different topological defects, namely the cosmic string spacetime ( Λ ∓…”
Get full text

Effects of Glyphosate on the Environment and Human Health by García-Villanueva, L. A., Cuapio-Ortega, V. H., Henández-Paniagua, I. Y., Fernández-Villagómez, G., Rodrigo-Ilarri, J., Rodrigo-Clavero, M. E., Andraca-Ayala, G. L., Hernández-Cruz, G. B., Banda-Santamaría, S.

“…Glyphosate is a herbicide of a wide spectrum that alters the production of amino acids in plants, leading to their death. Due to its properties, it is used to…”
Get full text

Anti-inflammatory activity of Mitraphylline isolated from Uncaria tomentosa bark by Rojas-Duran, R., González-Aspajo, G., Ruiz-Martel, C., Bourdy, G., Doroteo-Ortega, V.H., Alban-Castillo, J., Robert, G., Auberger, P., Deharo, E.

“…Uncaria tomentosa (Willd. ex Roem. & Schult.) DC. (Rubiaceae) is widely used by populations living in South America to treat many ailments associated with…”
Get full text

Intracranial aneurysms : flow analysis of their origin and progression by GONZALEZ, C. F, CHO, Y. I, ORTEGA, H. V, MORET, J

“…To explain the origin and growth of intracranial aneurysms using the hemodynamic data obtained from a computer simulation. Pulsatile flow in an intracranial…”
Get full text

Arterial Pseudostenosis on First-Pass Gadolinium-Enhanced Three-Dimensional MR Angiography: New Observation of a Potential Pitfall by Chiowanich, Peerapod, Mitchell, Donald G, Ortega, Hector V, Mohamed, Feroze

“…The purpose of this study was to determine the frequency of apparent stenosis of normal aortic branches in patients on first-pass gadolinium-enhanced…”
Get full text

Computer simulation helps predict cerebral aneurysms by ORTEGA, H. V

“…Researchers have recently proven the ability of computer simulation to predict the behaviour of cerebral aneurysms. Accurately simulating the flow of blood…”
Get full text

Carotid artery bifurcation: multiple-flip-angle, three-dimensional, time-of-flight MR angiographic technique by Faro, S H, Mohamed, F B, Chen, C Y, Ortega, H V, Vinitski, S

“…Multiple-flip-angle, three-dimensional, time-of-flight magnetic resonance (MR) angiography was performed in vitro and in vivo in the carotid artery…”
Get more information

A simple method to improve image nonuniformity of brain MR images at the edges of a head coil by MOHAMED, F. B, VINITSKI, S, FARO, S. H, ORTEGA, H. V, ENOCHS, S

“…One of the major sources of image nonuniformity in the high field MR scanners is the radiofrequency (RF) coil inhomogeneity. It degrades conspicuity of…”
Get full text

Low-artifact intravascular devices: MR imaging evaluation by Teitelbaum, G P, Ortega, H V, Vinitski, S, Stern, H, Tsuruda, J S, Mitchell, D G, Rifkin, M D, Bradley, Jr, W G

“…Flow-phantom magnetic resonance (MR) imaging, with use of both spin-echo (SE) and gradient-echo (GRE) techniques at 1.5 T, was performed on the percutaneous…”
Get more information

Carotid magnetic resonance angiography : improved image quality with dual 3-inch surface coils by FARO, S. H, VINITSKI, S, ORTEGA, H. V, MOHAMED, F. B, CHEN, C. Y, FLANDERS, A. E, GONZALES, C. F, ZIMMERMAN, R. A

“…Magnetic resonance angiography (MRA) hs inherent artifacts due to variation in velocity and direction of flowing blood in the carotid bulb and regions of…”
Get full text

Theory of ultrasound Doppler-spectra velocimetry for arbitrary beam and flow configurations by Censor, D., Newhouse, V.L., Vontz, T., Ortega, H.V.

“…In conventional ultrasound Doppler systems, the velocity component along the beam axis is derived from the observed frequency shift. Recently, it was verified…”
Get full text

Algebraic solution and coherent states for the Dirac oscillator interacting with a topological defect by Salazar-Ramírez, M, Ojeda-Guillén, D, Morales-González, A, García-Ortega, V. H

“…Eur. Phys. J. Plus (2019) 134: 8 In this work we study and exactly solve the Dirac oscillator with three different topological defects, namely the cosmic…”
Get full text

Technical Report Computer simulation helps predict cerebral aneurysms by Ortega, H. V.

“…Researchers have recently proven the ability of computer simulation to predict the behaviour of cerebral aneurysms. Accurately simulating the flow of blood…”
Get full text

Use of Ferrum in MRI of lung parenchyma and pulmonary embolism by Vinitski, S, Thakur, M L, Consigny, P M, Mitchell, D G, Mohamed, F B, Ortega, H V

“…MRI of lung parenchyma and pulmonary embolism (PE) remains challenging. "Ferrum," a ferric hydroxide sucrose complex used clinically for iron deficiency anemia…”
Get more information

Optimization of gradient-echo imaging parameters for intracaval filters and trapped thromboemboli by Teitelbaum, G P, Ortega, H V, Vinitski, S, Clark, R A, Watanabe, A T, Matsumoto, A H, Rifkin, M D, Barth, K H

“…Flow-phantom magnetic resonance (MR) gradient-echo (GRE) imaging at 1.5 T was performed on a titanium Greenfield filter containing trapped blood clots with a…”
Get more information

Pulsation artifact in short TR MR imaging and angiography: exacerbation with signal averaging by Mitchell, D G, Tasciyan, T, Ortega, H V, Outwater, E, Vinitski, S

“…Averaging the signals from more than one excitation per phase-encoding view increases the signal-to-noise ratio and, in conventional spin-echo magnetic…”
Get more information

Predicting cerebral aneurysms with CFD by Ortega, Hector V

“…Computational-fluid-dynamics (CFD) techniques applied in detecting cerebral aneursyms aid doctors in prescribing the best treatment method. CFD is a simulation…”
Get full text

Doppler simulation for pulsatile flow having nonaxial components by Forsberg, F., Oung, H., Ortega, H.V.

“…Describes a numerical model that can produce Doppler signals for nonaxial, pulsatile flow. The model consists of two main units. The first unit models the…”
Get full text

Fast magnetization transfer MR imaging by Vinitski, S., Mohamed, F.B., Faro, S., Gonzalez, C., Ortega, H.V., Mitchell, D.G., Outwater, E.K.

“…We have implemented a new magnetization transfer (MT) technique, to decrease total imaging time and thus improve efficiency of MT based MRI. By judiciously…”
Get full text