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La ricerca find articoli where authors phrase all words ' Shandas, R' sort by level,fasc_key/DESCEND, pagina_ini_num/ASCEND ha restituito 60 riferimenti
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    1. Shandas, R; Mitchell, M; Conrad, C; Knudson, O; Sorrell, J; Mahalingam, S; Fragoso, M; Valdes-Cruz, L
      A general method for estimating deformation and forces imposed in vivo on bioprosthetic heart valves with flexible annuli: In vitro and animal validation studies

      JOURNAL OF HEART VALVE DISEASE
    2. Shandas, R; Weinberg, C; Ivy, DD; Nicol, E; DeGroff, CG; Hertzberg, J; Valdes-Cruz, L
      Development of a noninvasive ultrasound color M-mode means of estimating pulmonary vascular resistance in pediatric pulmonary hypertension - Mathematical analysis, in vitro validation, and preliminary clinical studies

      CIRCULATION
    3. DeGroff, CG; Bhatikar, S; Hertzberg, J; Shandas, R; Valdes-Cruz, L; Mahajan, RL
      Artificial neural network-based method of screening heart murmurs in children

      CIRCULATION
    4. DeGroff, CG; Shandas, R; Valdes-Cruz, L
      Pressure recovery and aortic stenosis

      JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
    5. DeGroff, CG; Shandas, R; Kwon, J; Valdes-Cruz, L
      Accuracy of the Bernoulli equation for estimation of pressure gradient across stenotic Blalock-Taussig shunts: An in vitro and numerical study

      PEDIATRIC CARDIOLOGY
    6. Shandas, R; Kwon, J; Valdes-Cruz, L
      A method for determining the reference effective flow areas for mechanicalheart valve prostheses - In vitro validation studies

      CIRCULATION
    7. Shandas, R; Kwon, J; Valdez-Cruz, L
      Real-time 3-dimensional volumetric ultrasound imaging of the vena contracta for stenotic valves with the use of echocardiographic contrast imaging: In vitro pulsatile flow studies

      JOURNAL OF THE AMERICAN SOCIETY OF ECHOCARDIOGRAPHY
    8. SHANDAS R; DEGROFF CG; KWON J; TRUJILLO N; GILL EA; VALDESCRUZ L
      UTILITY OF 3-DIMENSIONAL ULTRASOUND DOPPLER FLOW RECONSTRUCTION OF THE PROXIMAL JET TO QUANTIFY EFFECTIVE ORIFICE AREA - IN-VITRO STEADY AND PULSATILE FLOW STUDIES

      Journal of the American Society of Echocardiography
    9. SHANDAS R; DEGROFF CG; KWON J; VALDESCRUZ L
      DEVELOPMENT OF A CORRECTION FACTOR FOR QUANTIFYING STENOTIC VALVE AREA AT LOW OUTPUT STATES USING THE DOPPLER CONTINUITY EQUATION - IN-VITRO VALIDATION

      Journal of the American College of Cardiology
    10. DEGROFF CG; SHANDAS R; VALDESCRUZ L
      UTILITY OF THE PROXIMAL COLOR-FLOW JET WIDTH IN THE ASSESSMENT OF REGURGITANT STENOTIC OFFICES - EFFECT OF LOW-VELOCITY FILTER AND COMPARISON TO ACTUAL VENA CONTRACTA SIZE - A NUMERICAL STUDY/

      Journal of the American College of Cardiology
    11. SHANDAS R; KWON J; VALDESCRUZ L
      REAL-TIME 3-DIMENSIONAL VISUALIZATION AND QUANTITATION OF THE VENA-CONTRACTA FOR STENOTIC ORIFICES - IN-VITRO PULSATILE FLOW STUDIES

      Circulation
    12. DEGROFF CG; SHANDAS R; VALDESCRUZ L
      ANALYSIS OF THE EFFECT OF FLOW-RATE ON THE DOPPLER CONTINUITY EQUATION FOR STENOTIC ORIFICE AREA CALCULATIONS - A NUMERICAL STUDY

      Circulation
    13. SHANDAS R; TRUJILLO N; GILL EA; KWON J; DEGROFF CG; VALDESCRUZ L
      IS THE VENA CONTRACTA AREA FOR STENOTIC AND REGURGITANT ORIFICES DEPENDENT ON HEMODYNAMIC VARIABLES - AN IN-VITRO STUDY USING LASER-INDUCEDFLUORESCENCE IMAGING

      Journal of the American College of Cardiology
    14. SHANDAS R; KWON J; DEGROFF CG; VALDESCRUZ L
      COLOR DOPPLER IMAGING OF THE PROXIMAL JET IS A GOOD REFLECTOR OF VENA-CONTRACTA AREA OF REGURGITANT JETS - IN-VITRO STUDIES USING LASER-INDUCED FLUORESCENCE IMAGING

      Journal of the American College of Cardiology
    15. SHANDAS R; DEGROFF CG; KWON J; VALDESTCRUZ L
      VORTEX STRUCTURES WITHIN THE MODIFIED FONTAN CONNECTION PLAY A PRIMARY ROLE IN ENERGY-LOSS - IN-VITRO DIGITAL PARTICLE IMAGE VELOCIMETRY STUDIES

      Journal of the American College of Cardiology
    16. GILL EA; TRUJILLO NP; SHANDAS R; DEGROFF CG; KWON J; VALDESCRUZ L
      COMPARISON OF EFFECTIVE OFFICE THE DOPPLER CONTINUITY EQUATION TO DIRECTLY VISUALIZED VENA CONTRACTA AREAS - IN-VITRO STUDIES USING LASER-INDUCED FLUORESCENCE IMAGING

      Journal of the American College of Cardiology
    17. SHANDAS R; JONES M; CHIKADA M; KWON J; KNUDSON O; VALDESCRUZ L
      3-DIMENSIONAL FLOW RECONSTRUCTION OF IRREGULAR STENOTIC MITRAL BIOPROSTHESES - IN-VITRO AND ANIMAL STUDIES

      Journal of the American College of Cardiology
    18. DEGROFF CG; SHANDAS R; VALDESCRUZ L
      ANALYSIS OF A MODIFIED FLOW CONVERGENCE EQUATION FOR CALCULATION OF AORTIC REGURGITANT FLOW-RATE - A NUMERICAL STUDY

      Journal of the American College of Cardiology
    19. SHANDAS R; KWON J; DEGROFF CG; GILL EA; VALDESCRUZ L
      MEASUREMENT OF VENA CONTRACTA AREAS FOR BILEAFLET MECHANICAL VALVE PROSTHESES USING LASER FLOW VISUALIZATION - COMPARISON TO THE DOPPLER CONTINUITY EQUATION

      Circulation
    20. NOZAKI S; SHANDAS R; DEMARIA AN
      REQUIREMENT FOR ACCURATE MEASUREMENT OF REGURGITANT STROKE VOLUME BY THE COMBINED CONTINUOUS-WAVE DOPPLER AND COLOR DOPPLER FLOW CONVERGENCE METHOD

      The American heart journal
    21. KWON J; LITTLE E; SHANDAS R; KNUDSON O; VALDESCRUZ L
      EFFECT OF MACHINE PARAMETERS ON 3-DIMENSIONAL VOLUME MEASUREMENT OF JETS - IN-VITRO STUDIES

      Pediatric research
    22. KWON J; SHAFFER E; SHANDAS R; VALDESCRUZ L
      ABDOMINAL FETAL ECG NOISE REMOVAL

      Pediatric research
    23. SHANDAS R; KNUDSON O; KWON J; VALDESCRUZ L
      3-DIMENSIONAL ULTRASOUND FLOW IMAGING PROVIDES MORE ACCURATE VISUALIZATION OF THE FLOW CONVERGENCE REGION THAN 2-DIMENSIONAL COLOR-FLOW MAPPING - IN-VITRO STUDIES

      Pediatric research
    24. SHANDAS R; LITTLE E; KWON J; KNUDSON O; VALDESCRUZ L
      AUTOMATIC FLOW CALCULATION OF REGURGITANT JETS FROM VOLUME RENDERED 3-DIMENSIONAL FLOW IMAGES - IN-VITRO STUDIES

      Pediatric research
    25. SHANDAS R; KNUDSON O; KWON J; VALDESCRUZ L
      3-DIMENSIONAL ULTRASOUND FLOW IMAGING OF THE PROXIMAL FLOW CONVERGENCE REGION - IN-VITRO STUDIES ON STEADY AND PULSATILE FLOW

      Circulation
    26. SHANDAS R; KWON J; VALDESCRUZ L
      VALIDATION OF NEW TECHNIQUES TO AUTOMATICALLY CALCULATE REGURGITANT JET VOLUME FROM 3-DIMENSIONAL RECONSTRUCTION OF COLOR DOPPLER IMAGES - IN-VITRO STEADY AND PULSATILE FLOW STUDIES

      Circulation
    27. SHANDAS R; TRUJILLO N; KWON J; GILL EA; VALDESCRUZ L
      A NEW METHOD TO MEASURE ACTUAL VENA CONTRACTA AREAS FOR REGURGITANT AND STENOTIC JETS - IN-VITRO STUDIES ON STEADY AND PULSATILE FLOWS

      Circulation
    28. SHANDAS R; KWON J; VALDESCRUZ L
      IN-VITRO STUDIES OF VERACITY PROFILES WITHIN THE PROXIMAL JET USING DIGITAL PARTICLE IMAGE VELOCIMETRY - IMPLICATIONS FOR CLINICAL DOPPLER METHODS

      Circulation
    29. DEGROFF C; SHANDAS R; VALDESCRUZ L
      ANALYSIS OF THE EFFECT OF FLOW-RATE ON THE DOPPLER CONTINUITY EQUATION FOR STENOTIC ORIFICE AREA CALCULATIONS - A NUMERICAL STUDY

      Circulation
    30. PASSAFINI A; SHIOTA T; DEPP M; PAIK J; GE S; SHANDAS R; SAHN DJ
      FACTORS INFLUENCING PULMONARY VENOUS FLOW VELOCITY PATTERNS IN MITRALREGURGITATION - AN IN-VITRO STUDY

      Journal of the American College of Cardiology
    31. SHANDAS R; GHARIB M; SAHN DJ
      NATURE OF FLOW ACCELERATION INTO A FINITE-SIZED ORIFICE - STEADY AND PULSATILE FLOW STUDIES ON THE FLOW CONVERGENCE REGION USING SIMULTANEOUS ULTRASOUND DOPPLER FLOW MAPPING AND LASER-DOPPLER VELOCIMETRY

      Journal of the American College of Cardiology
    32. SHANDAS R; JONES M; VALDESCRUZ L
      DIGITAL PARTICLE IMAGE VELOCIMETRY MEASUREMENTS OF VELOCITY PROFILES PROXIMAL AND DISTAL TO BILEAFLET MECHANICAL VALVES - AN IN-VITRO STUDY

      Pediatric research
    33. SHANDAS R; SOLOWIEJCYK D; JONES M; VALDESCRUZ L
      A NEW METHOD FOR CALCULATING FLOW-THROUGH BILEAFLET MECHANICAL VALVESBASED ON THE PROXIMAL FLOW CONVERGENCE TECHNIQUE - STUDIES IN A CHRONIC ANIMAL-MODEL

      Pediatric research
    34. TRUJILLO NP; GILL EA; SHANDAS R; KNUDSON OA; VALDESCRUZ LM
      FLOW DEPENDENCE OF THE DOPPLER CONTINUITY EQUATION FOR CALCULATION OFEFFECTIVE FLOW AREAS - IN-VITRO PULSATILE FLOW STUDIES USING RIGID ORIFICES

      Circulation
    35. SHANDAS R; GHARIB M; JONES M
      DIGITAL PARTICLE IMAGE VELOCIMETRY MEASUREMENTS OF VELOCITY PROFILES THROUGH BILEAFLET MECHANICAL VALVES - AN IN-VITRO STUDY

      Circulation
    36. SHANDAS R; KWON J; KNUDSON O; VALDESCRUZ L
      UTILITY OF 3-DIMENSIONAL ULTRASOUND DOPPLER FLOW RECONSTRUCTION OF THE PROXIMAL JET TO QUANTIFY REGURGITANT ORIFICE AREA - AN IN-VITRO PULSATILE FLOW STUDY

      Circulation
    37. MIZUSHIGE K; SHIOTA T; PAIK J; GRIEVER G; DEPP MR; PASSAFINI A; SHANDAS R; DEMARIA AN; SAHN DJ
      EFFECTS OF PULMONARY VENOUS FLOW DIRECTION ON MITRAL REGURGITATION JET AREA AS IMAGED BY COLOR DOPPLER FLOW MAPPING - AN IN-VITRO STUDY

      Circulation
    38. SHIOTA T; JONES M; VALDESCRUZ LM; SHANDAS R; YAMADA I; SAHN DJ
      COLOR-FLOW DOPPLER DETERMINATION OF TRANSMITRAL FLOW AND ORIFICE AREAIN MITRAL-STENOSIS - EXPERIMENTAL EVALUATION OF THE PROXIMAL FLOW-CONVERGENCE METHOD

      The American heart journal
    39. SHIOTA T; TEIEN D; DENG YB; GE SP; SHANDAS R; HOLCOMB S; SAHN DJ
      ESTIMATION OF REGURGITANT FLOW-VOLUME BASED ON CENTERLINE VELOCITY DISTANCE PROFILES USING DIGITAL COLOR M-Q DOPPLER - APPLICATION TO ORIFICES OF DIFFERENT SHAPES/

      Journal of the American College of Cardiology
    40. GE SP; SHIOTA T; DENG YB; SHANDAS R; SAHN DJ
      QUANTIFICATION OF FLOW-RATE THROUGH RESTRICTIVE ORIFICES USING THE PROXIMAL FLOW CONVERGENCE REGION - DEVELOPMENT OF A NEW ALGORITHM USING HEMISPHERICAL ISOVELOCITY SURFACES GUIDED BY A CENTERLINE VELOCITY DISTANCE FUNCTION IN AN IN-VITRO STUDY/

      Journal of the American College of Cardiology
    41. SHIOTA T; SHANDAS R; MOISES V; ELKADI T; GOLEBIOVSKI P; MROSKO B; SAHN DJ
      THE CHANGING SHAPE OF THE FLOW CONVERGENCE REGION AS A FUNCTION OF ORIFICE SIZE - COLOR DOPPLER, LASER-INDUCED FLUORESCENT PARTICLE STUDIESAND SOAP-FILM OBSERVATIONS IN AN IN-VITRO MODEL

      Journal of the American College of Cardiology
    42. SHIOTA T; SHANDAS R; GOLEBIOVSKI P; SAHN DJ
      NEW COLOR DOPPLER TECHNIQUES FOR DEMONSTRATING FREE VORTICES AND RADIAL VORTEX SHEDDING - AN IN-VITRO STUDY

      Journal of the American College of Cardiology
    43. SHANDAS R; JONES M; SHIOTA T; YAMADA I; TEIEN D; SAHN DJ
      A COMPUTERIZED METHOD FOR CALCULATING CARDIAC-OUTPUT BASED ON REAL-TIME COLOR DOPPLER IMAGES USING THE PROXIMAL FLOW CONVERGENCE TECHNIQUE - EXPERIMENTAL STUDIES IN AN ANIMAL-MODEL

      Journal of the American College of Cardiology
    44. NOZAKI S; SHANDAS R; SAHN DJ; DITTRICH HC; DEMARIA AN
      INFLUENCE OF ULTRASONIC CONTRAST ENHANCEMENT ON THE SIZE AND SHAPE OFTHE FLOW CONVERGENCE AREA BY COLOR DOPPLER - AN IN-VITRO STUDY

      Journal of the American College of Cardiology
    45. MANDULEY RA; SHANDAS R; SOLOWIEJCZYK DE; VALDESCRUZ L
      ACCURACY OF A HEMISPHERICAL MODEL TO CALCULATE STROKE VOLUME USING A PROXIMAL ISOVELOCITY SURFACE-AREA METHOD - AN IN-VITRO PULSATILE FLOW-ANALYSIS

      Pediatric research
    46. SHANDAS R; SOLOWIEJCZYK D; JONES M; MANDULEY R; YAMADA I; CAYRE R; VALDESCRUZ L
      EFFECTIVE FLOW AREAS OF BILEAFLET MECHANICAL MITRAL-VALVES - STUDIES IN AN IN-VITRO PULSATILE FLOW SYSTEM AND IN A CHRONIC ANIMAL-MODEL

      Pediatric research
    47. NOZAKI S; SHANDAS R; DITTRICH HC; DEMARIA AN
      DETERMINATION OF THE OPTIMAL ALIAS VELOCITY TO MEASURE VOLUMETRIC FLOW-RATE USING THE PROXIMAL FLOW CONVERGENCE METHOD - AN IN-VITRO PULSATILE FLOW STUDY

      Circulation
    48. NOZAKI S; SHANDAS R; KWAN QL
      AN OBJECTIVE METHOD TO ESTIMATE REGURGITANT ORIFICE AREA USING PROXIMAL FLOW CONVERGENCE - AN IN-VITRO PULSATILE FLOW STUDY

      Circulation
    49. GE SP; DENG YB; SHANDAS R
      LIMITATIONS OF FLOW CONVERGENCE METHODS FOR QUANTITATION OF FLOW-RATES - INSIGHTS FROM AN IN-VITRO STUDY OF DIGITAL CENTERLINE VELOCITY PROFILES

      Circulation
    50. NOZAKI S; SHANDAS R; KWAN QL
      AN OBJECTIVE METHOD TO ESTIMATE REGURGITANT ORIFICE AREA USING PROXIMAL FLOW CONVERGENCE - AN IN-VITRO PULSATILE FLOW STUDY

      Circulation
    51. NOZAKI S; SHANDAS R; DITTRICH HC; DEMARIA AN
      DETERMINATION OF THE OPTIMAL ALIAS VELOCITY TO MEASURE VOLUMETRIC FLOW-RATE USING THE PROXIMAL FLOW CONVERGENCE METHOD - AN IN-VITRO PULSATILE FLOW STUDY

      Circulation
    52. GE SP; DENG YB; SHANDAS R
      LIMITATIONS OF FLOW CONVERGENCE METHODS FOR QUANTITATION OF FLOW-RATES - INSIGHTS FROM AN IN-VITRO STUDY OF DIGITAL CENTERLINE VELOCITY PROFILES

      Circulation
    53. SHIOTA T; JONES M; TEIEN DE; YAMADA I; PASSAFINI A; GE SP; SHANDAS R; VALDESCRUZ LM; SAHN DJ
      EVALUATION OF MITRAL REGURGITATION USING A DIGITALLY DETERMINED COLORDOPPLER FLOW CONVERGENCE CENTERLINE ACCELERATION METHOD - STUDIES IN AN ANIMAL-MODEL WITH QUANTIFIED MITRAL REGURGITATION

      Circulation
    54. ZHANG J; SHIOTA T; SHANDAS R; DENG YB; WEINTRAUB R; PAIK J; LIEPMANN D; SAHN DJ
      EFFECTS OF ADJACENT SURFACES OF DIFFERENT SHAPES ON REGURGITANT JET SIZES - AN IN-VITRO STUDY USING COLOR DOPPLER IMAGING AND LASER-ILLUMINATED DYE VISUALIZATION

      Journal of the American College of Cardiology
    55. SHANDAS R; SOLOWIEJCZYK D; MANDULEY R; YAMADA I; CAYRE R; VALDESCRUZ L
      ACCURACY OF AN AUTOMATIC COMPUTER ALGORITHM FOR CALCULATION OF FLOWS THROUGH BILEAFLET MECHANICAL MITRAL-VALVES BASED ON THE FLOW CONVERGENCE METHOD - STUDIES IN A CHRONIC ANIMAL-MODEL

      Circulation
    56. SHANDAS R; THOMAS B; GHARIB M; SAHN DJ
      SIMULTANEOUS LASER-DOPPLER VELOCIMETRY AND COLOR DOPPLER STUDIES ASSIST REFINING METHODS FOR CALCULATING REGURGITANT FLOW-RATES

      Circulation
    57. YAMADA I; SHIOTA T; JONES M; TEIEN D; SHANDAS R; SAHN DJ
      A DIGITAL COLOR DOPPLER METHOD FOR EVALUATION OF MITRAL REGURGITATION- VALIDATION IN SHEEP WITH QUANTIFIABLE PROLAPSE TYPE MITRAL REGURGITATION

      Circulation
    58. DENG YB; SHIOTA T; SHANDAS R; ZHANG J
      DETERMINATION OF THE MOST APPROPRIATE NYQUIST VELOCITY FOR APPLYING HEMISPHERICAL FLOW CONVERGENCE EQUATION TO CALCULATE FLOW-RATE USING THE TRANSORIFICE PRESSURE-GRADIENT

      Circulation
    59. DENG YB; SHIOTA T; SHANDAS R; ZHANG J; SAHN DJ
      DETERMINATION OF THE MOST APPROPRIATE VELOCITY THRESHOLD FOR APPLYINGHEMISPHERIC FLOW CONVERGENCE EQUATIONS TO CALCULATE FLOW-RATE - SELECTED ACCORDING TO THE TRANSORIFICE PRESSURE-GRADIENT - DIGITAL-COMPUTERANALYSIS OF THE DOPPLER COLOR-FLOW CONVERGENCE REGION

      Circulation
    60. SIMPSON IA; MACIEL BC; MOISES V; SHANDAS R; ELIAS W; VALDESCRUZ L; HESSELINK JR; CHUNG KJ; SAHN DJ
      CINE MAGNETIC-RESONANCE-IMAGING AND COLOR DOPPLER FLOW MAPPING DISPLAYS OF FLOW VELOCITY, SPATIAL ACCELERATION, AND JET FORMATION - A COMPARATIVE IN-VITRO STUDY

      The American heart journal


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Documento generato il 21/01/21 alle ore 06:58:19