Sample records for CAVIDADES DE RESONANCIA (resonance cavities)
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Sample records 1 - 20 shown. Select sample records:



1

Diagnóstico de las cardiopatías congénitas complejas por resonancia magnética/ Diagnosis of complex congenital heart disease through magnetic resonance

Meave González, A; Hernández González, M; Alexánderson Rosas, E; Vázquez Antona, C; Ermenger Orellana, J; Solorio Meza, S; Romero Ibarra, JL; Buendía Hernández, A
2005-12-01

Resumen en español Objetivo: Analizar la utilidad de la resonancia magnética para el diagnóstico morfológico en las cardiopatías congénitas complejas comparada con el ecocardiograma transtorácico. Método: Se incluyeron 45 pacientes con sospecha clínica de cardiopatía congénita grave, se les realizó una resonancia magnética y ecocardiograma transtorácico y se comparó anatomía y tamaño de cavidades cardíacas. Para el análisis se empleó estadística descriptiva y análisis d (mas) e Bland-AItman para la concordancia entre ambos métodos. Resultados: No hubo diferencias significativas en mediciones obtenidas por ambos métodos, excepto en la fracción de expulsión del ventrículo izquierdo (66.56 ± 9.47 por ECO vs 52.32 ± 13.85 por RM, p = 0.0001) y la medición del diámetro de la rama izquierda de la arteria pulmonar (9.77 ± 6.80 por ECO vs 13.83 ± 8.46 por RM, p = 0.05). La sensibilidad, especificidad y los valores predictivos de la RM fueron elevados para analizar la conexión AV y VA, no así para el situs atrial y los drenajes venosos (pulmonar y sistémico) donde el ECO tiene baja resolución. La concordancia de las mediciones de la FE, índice de McGoon y tamaño del VD mostró pocos valores extremos. Conclusiones: La RM y el ECO son similares para el diagnóstico morfológico de las cardiopatías congénitas graves, pero la RM puede superar al ECO en la visualización de estructuras extracardíacas. Resumen en inglés Objective: To analyze the usefulness of magnetic resonance for the morphological diagnosis in complex congenital cardiopathies and compare it with the transthoracic echocardiogram. Method: We included 45 patients with clinical suspicion of severe congenital cardiopathy A magnetic resonance and a transthoracic echocardiogram were performed and the anatomy and size of the cardiac cavities were compared. Descriptive statistics were used and Bland-Altman test was used to anal (mas) yze concordance between both methods. Results: There were no significant differences in the measures obtained with either method, except for the left ventricle ejection fraction (66.56 ± 9.47 with ECO vs 52.32 ± 13.85 with MR, p = 0.0001) and for diameter of the left branch of the pulmonary artery (9.77 ± 6.80 with ECO vs 12.83 ± 8.46 with MR, p = 0.05). The sensitivity, specificity, and predictive values of MR were high to analyze the AV and VA connection, but not for the atrial sinus and the venous drainages (pulmonary and systemic). Concordance of ejection fraction measures, McGoon index, and size of VD revealed few extreme values. Conclusions: MR and ECO are similar for the morphological diagnosis of severe congenital cardiopathies, but MR can be better than ECO for the visualization of extracardiac structures.

Scientific Electronic Library Online (Spanish)

2
3

Ultrasound device for the emission of acoustic waves in air in the ultrasonic range

Octavio Manzanares, Alberto; Montero de Espinosa Freijo, Francisco
2010-03-04

Digital.CSIC (Spain)

4

Two-frequency emission and polarization dynamics at lasing threshold in vertical-cavity surface-emitting lasers

Sondermann, M.; Weinkath, M.; Ackemann, Thorsten; Mulet, Josep; Balle, Salvador
2003-09-29

Digital.CSIC (Spain)

5

Switchable ultrastrong coupling in circuit QED

Peropadre, Borja; Forn-Díaz, Pol; Solano, Enrique; García-Ripoll, Juan José
2010-04-10

Digital.CSIC (Spain)

6

Stochastic resonance in the presence of spatially localized structures

Rabbiosi, Ivan; Scroggie, Andrew J.; Oppo, Gian-Luca
2003-09-08

Digital.CSIC (Spain)

7

Stable droplets and dark-ring cavity solitons in nonlinear optical devices

Gomila, Damià; Colet, Pere; San Miguel, Maxi; Scroggie, Andrew J.; Oppo, Gian-Luca
2003-02-01

Digital.CSIC (Spain)

9

Self-localized structures in vertical-cavity surface-emitting lasers with external feedback

Paulau, P. V.; Gomila, Damià; Ackemann, Thorsten; Loiko, N. A.; Firth, William J.
2008-07-28

Digital.CSIC (Spain)

10

Resonance-driven random lasing

Gottardo, Stefano; Sapienza, Riccardo; García, Pedro D.; Blanco, Álvaro; Wiersma, Diederik S.; López Fernández, Ceferino
2008-06-15

Digital.CSIC (Spain)

11

Propiedades y aplicaciones de piezocomposites tipo címbalo

Ochoa, P.; Villegas, Marina; Fernández Lozano, José Francisco
2001-07-01

Digital.CSIC (Spain)

12

Polarization patterns and vectorial defects in type-II optical parametric oscillators

Santagiustina, Marco; Hernández-García, Emilio; San Miguel, Maxi; Scroggie, Andrew J.; Oppo, Gian-Luca
2003-02-13

Digital.CSIC (Spain)

13
14

Peliosis hepática focal: Caso clínico radiológico/ Peliosis hepatis: Report of one case

MIRANDA, ROBERTO; STAMBUK, JUAN; VIAL, MARÍA TERESA; MIRANDA, ANDRÉS
2010-09-01

Resumen en inglés Peliosis hepatis is a rare vascular condition of the liver characterized by the presence of cystic blood-fi lled cavities distributed randomly throughout the liver parenchyma. We report a 46 year old female, with dyspepsia. An abdominal Doppler ultrasound showed a hyper vascularized solid liver nodule of 5 cm diameter. Magnetic resonance imaging and CT scan showed the same hyper vascularized nodule. With the possible diagnoses of primary hepatocellular carcinoma or focal (mas) nodular hyperplasia, the patient was subjected to an excision of hepatic segment VI, where the nodule was located. The pathological diagnosis of the surgical piece was a peliosis hepatis

Scientific Electronic Library Online (Spanish)

16

Passive Mode Locking of Lasers by Crossed-Polarization Gain Modulation

Javaloyes, Julien; Mulet, Josep; Balle, Salvador
2006-10-16

Digital.CSIC (Spain)

17

Optical emission of InAs/GaAs quantum rings coupled to a two-dimensional photonic crystal microcavity

Sarkar, D.; Martínez Rodríguez, Luis Javier; Prieto-González, Iván; Van der Meulen, H. P.; Calleja, J. M.; Granados, Daniel; Taboada, A. G.; García, Jorge M.; Alija, Alfonso R.; Postigo, Pablo Aitor
2008-04-01

Digital.CSIC (Spain)

18

Optical coupling of two distant InAs/GaAs quantum dots by a photonic-crystal microcavity

Gallardo, E.; Martínez Rodríguez, Luis Javier; Nowak, A. K.; Sarkar, D.; Van der Meulen, H. P.; Calleja, J. M.; Tejedor, C.; Prieto-González, Iván; Granados, Daniel; Taboada, A. G.; García, Jorge M.; Postigo, Pablo Aitor
2010-05-11

Digital.CSIC (Spain)

19
20

Localized structures in nonlinear optical cavities

Gomila, Damià; Colet, Pere; Matías, Manuel A.; San Miguel, Maxi; Oppo, Gian-Luca
2006-02-09

Digital.CSIC (Spain)

21

Laser nanosources based on planar photonic crystals as new platforms for nanophotonic devices

Postigo, Pablo Aitor; Rodríguez Alija, Alfonso; Martínez Rodríguez, Luis Javier; Dotor, María Luisa; Golmayo, Dolores; Sánchez-Dehesa, José; Seassal, Christian; Viktorovitch, P.; Galli, M.; Politi, Alberto; Patrini, M.; Andreani, Lucio C.
2007-10-01

Digital.CSIC (Spain)

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23

Impact of nonlocal interactions in dissipative systems: Towards minimal-sized localized structures

Gelens, Lendert; Van der Sande, Guy; Tassin, Philippe; Tlidi, Mustapha; Kockaert, Pascal; Gomila, Damià; Veretennicoff, Irina; Danckaert, Jan
2007-06-13

Digital.CSIC (Spain)

24

High-speed 1.55 μm operation of low-temperature-grown GaAs-based resonant-cavity-enhanced p–i–n photodiodes

Butun, B.; Biyikli, N.; Kimukin, I.; Aytur, O.; Ozbay, E.; Postigo, Pablo Aitor; Silveira, Juan Pedro; Alija, Alfonso R.
2004-05-24

Digital.CSIC (Spain)

25

Ghost stochastic resonance in vertical-cavity surface-emitting lasers: Experiment and theory

Van der Sande, Guy; Verschaffelt, Guy; Danckaert, Jan; Mirasso, Claudio R.
2005-07-18

Digital.CSIC (Spain)

29

Effects of noise on excitable dissipative solitons

Jacobo, Adrián; Gomila, Damià; Matías, Manuel A.; Colet, Pere
2010-05-01

Digital.CSIC (Spain)

30

Dynamics of a Nonlinear Ring Cavity: Excitability and Coherent Resonance

Tronciu, Vasile Z.; Abram, R. A.; Rusu, S. S.; Bardetski, P. I.

5 pages.-- PACS numbers: 05.45.-a, 85.40.Qx, 07.07.Tw, 42.60.Da.-- Final full-text version of the paper available at: http://dx.doi.org/10.1134/S1063783407030055. | The phenomena of excitability and coherent resonance in a nonlinear ring cavity in the presence of excitons and biexcitons are consider...

DRIVER (Spanish)

31

Dynamics of a Nonlinear Ring Cavity: Excitability and Coherent Resonance

Tronciu, Vasile Z.; Abram, R. A.; Rusu, S. S.; Bardetski, P. I.
2007-03-20

Digital.CSIC (Spain)

32

Coupled-cavity two-dimensional photonic crystal waveguide ring laser

Alija, Alfonso R.; Martínez Rodríguez, Luis Javier; Postigo, Pablo Aitor; Seassal, Christian; Viktorovitch, P.
2006-09-05

Digital.CSIC (Spain)

33

Confined photon modes with triangular symmetry in hexagonal microcavities in 2D photonic Crystals

Kosevich, Yuriy A.; Sánchez-Dehesa, José; Alija, Alfonso R.; Martínez Rodríguez, Luis Javier; Dotor, María Luisa; Golmayo, Dolores; Postigo, Pablo Aitor
2007-01-01

Digital.CSIC (Spain)