Ryan Brown

Summary

Affiliation: New York University School of Medicine
Country: USA

Publications

  1. pmc A flexible nested sodium and proton coil array with wideband matching for knee cartilage MRI at 3T
    Ryan Brown
    Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, New York, USA
    Magn Reson Med 76:1325-34. 2016
  2. pmc A nested phosphorus and proton coil array for brain magnetic resonance imaging and spectroscopy
    Ryan Brown
    Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, USA Center for Advanced Imaging Innovation and Research CAI2R, Department of Radiology, New York University School of Medicine, New York, NY, USA NYU WIRELESS, Polytechnic Institute of New York University, 2 Metro Tech Center, Brooklyn, NY 11201, USA Electronic address
    Neuroimage 124:602-11. 2016
  3. pmc Breast MRI at 7 Tesla with a bilateral coil and T1-weighted acquisition with robust fat suppression: image evaluation and comparison with 3 Tesla
    Ryan Brown
    Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University Langone Medical Center, 660 First Avenue, Room 401, New York, NY, USA
    Eur Radiol 23:2969-78. 2013
  4. pmc Design of a nested eight-channel sodium and four-channel proton coil for 7T knee imaging
    Ryan Brown
    Department of Radiology, New York University Langone Medical Center, New York, New York 10016, USA
    Magn Reson Med 70:259-68. 2013
  5. pmc Effect of blood flow on double inversion recovery vessel wall MRI of the peripheral arteries: quantitation with T2 mapping and comparison with flow-insensitive T2-prepared inversion recovery imaging
    Ryan Brown
    Department of Radiology, Weill Medical College of Cornell University, New York, New York 10016, USA
    Magn Reson Med 63:736-44. 2010
  6. ncbi request reprint Design of a birdcage array for lower extremity angiography
    Ryan Brown
    Department of Radiology, Weill Medical College of Cornell University, New York, New York, USA
    J Magn Reson Imaging 26:589-97. 2007
  7. pmc Maximum efficiency radiofrequency shimming: Theory and initial application for hip imaging at 7 tesla
    Cem Murat Deniz
    Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, New York 10016, USA
    Magn Reson Med 69:1379-88. 2013
  8. ncbi request reprint In vivo quantification of contrast agent concentration using the induced magnetic field for time-resolved arterial input function measurement with MRI
    Ludovic de Rochefort
    Radiology Department, Weill Medical College of Cornell University, New York, New York 10022, USA
    Med Phys 35:5328-39. 2008
  9. pmc Design and application of combined 8-channel transmit and 10-channel receive arrays and radiofrequency shimming for 7-T shoulder magnetic resonance imaging
    Ryan Brown
    From the Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University Langone Medical Center, NY
    Invest Radiol 49:35-47. 2014
  10. pmc Breast MRI at 7 Tesla with a bilateral coil and robust fat suppression
    Ryan Brown
    Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University Langone Medical Center, New York, New York, USA
    J Magn Reson Imaging 39:540-9. 2014

Collaborators

Detail Information

Publications29

  1. pmc A flexible nested sodium and proton coil array with wideband matching for knee cartilage MRI at 3T
    Ryan Brown
    Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, New York, USA
    Magn Reson Med 76:1325-34. 2016
    ..However, low tissue-coil coupling that is characteristic of coils operating at low frequency can make the potential gains from a phased array difficult to realize...
  2. pmc A nested phosphorus and proton coil array for brain magnetic resonance imaging and spectroscopy
    Ryan Brown
    Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, USA Center for Advanced Imaging Innovation and Research CAI2R, Department of Radiology, New York University School of Medicine, New York, NY, USA NYU WIRELESS, Polytechnic Institute of New York University, 2 Metro Tech Center, Brooklyn, NY 11201, USA Electronic address
    Neuroimage 124:602-11. 2016
    ....
  3. pmc Breast MRI at 7 Tesla with a bilateral coil and T1-weighted acquisition with robust fat suppression: image evaluation and comparison with 3 Tesla
    Ryan Brown
    Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University Langone Medical Center, 660 First Avenue, Room 401, New York, NY, USA
    Eur Radiol 23:2969-78. 2013
    ..To evaluate the image quality of T1-weighted fat-suppressed breast MRI at 7 T and to compare 7-T and 3-T images...
  4. pmc Design of a nested eight-channel sodium and four-channel proton coil for 7T knee imaging
    Ryan Brown
    Department of Radiology, New York University Langone Medical Center, New York, New York 10016, USA
    Magn Reson Med 70:259-68. 2013
    ....
  5. pmc Effect of blood flow on double inversion recovery vessel wall MRI of the peripheral arteries: quantitation with T2 mapping and comparison with flow-insensitive T2-prepared inversion recovery imaging
    Ryan Brown
    Department of Radiology, Weill Medical College of Cornell University, New York, New York 10016, USA
    Magn Reson Med 63:736-44. 2010
    ....
  6. ncbi request reprint Design of a birdcage array for lower extremity angiography
    Ryan Brown
    Department of Radiology, Weill Medical College of Cornell University, New York, New York, USA
    J Magn Reson Imaging 26:589-97. 2007
    ..To investigate the application of a coil array consisting of multiple birdcages for bolus chase magnetic resonance angiography (MRA) of the lower extremities...
  7. pmc Maximum efficiency radiofrequency shimming: Theory and initial application for hip imaging at 7 tesla
    Cem Murat Deniz
    Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, New York 10016, USA
    Magn Reson Med 69:1379-88. 2013
    ..Building upon the improved shimming, we further show that the signal-to-noise ratio in hip cartilage at 7 T can be substantially greater than that at 3 T, illustrating the potential benefits of high field hip imaging...
  8. ncbi request reprint In vivo quantification of contrast agent concentration using the induced magnetic field for time-resolved arterial input function measurement with MRI
    Ludovic de Rochefort
    Radiology Department, Weill Medical College of Cornell University, New York, New York 10022, USA
    Med Phys 35:5328-39. 2008
    ....
  9. pmc Design and application of combined 8-channel transmit and 10-channel receive arrays and radiofrequency shimming for 7-T shoulder magnetic resonance imaging
    Ryan Brown
    From the Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University Langone Medical Center, NY
    Invest Radiol 49:35-47. 2014
    ..The objective of the study was to investigate the feasibility of 7-T shoulder magnetic resonance imaging by developing transmit and receive radiofrequency (RF) coil arrays and exploring RF shim methods...
  10. pmc Breast MRI at 7 Tesla with a bilateral coil and robust fat suppression
    Ryan Brown
    Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University Langone Medical Center, New York, New York, USA
    J Magn Reson Imaging 39:540-9. 2014
    ..To develop a bilateral coil and fat suppressed T1-weighted sequence for 7 Tesla (T) breast MRI...
  11. pmc In vivo quantification of femoral-popliteal compression during isometric thigh contraction: Assessment using MR angiography
    Ryan Brown
    Department of Radiology, Weill Medical College of Cornell University, New York, New York, USA
    J Magn Reson Imaging 29:1116-24. 2009
    ..To quantify femoral-popliteal vessel deformation during thigh contraction...
  12. doi request reprint Quantitative MR susceptibility mapping using piece-wise constant regularized inversion of the magnetic field
    Ludovic de Rochefort
    Cornell Cardiovascular Magnetic Resonance Imaging Laboratory, Radiology Department, Weill Medical College of Cornell University, New York, New York, USA
    Magn Reson Med 60:1003-9. 2008
    ..1 ppm, in a range of 10 ppm. In vivo feasibility was shown on the forearm for which soft-tissue, cortical bone, and bone marrow susceptibility, and chemical shift values in good agreement with literature data were obtained...
  13. pmc Specific absorption rate benefits of including measured electric field interactions in parallel excitation pulse design
    Cem Murat Deniz
    Center for Biomedical Imaging, Department of Radiology, New York University, School of Medicine, New York, New York, USA
    Magn Reson Med 67:164-74. 2012
    ..The results also show that knowledge of electric field interactions enables robust prediction of the net power delivered to the sample or subject by parallel radiofrequency pulses before they are played out on a scanner...
  14. pmc Simultaneous bilateral magnetic resonance imaging of the femoral arteries in peripheral arterial disease patients
    Ryan Brown
    Department of Radiology, Weill Medical College of Cornell University, New York, New York, USA
    J Magn Reson Imaging 34:150-6. 2011
    ..To image the femoral arteries in peripheral arterial disease (PAD) patients using a bilateral receive coil...
  15. pmc Method for in situ characterization of radiofrequency heating in parallel transmit MRI
    Leeor Alon
    The Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, New York 10016, USA
    Magn Reson Med 69:1457-65. 2013
    ..Further optimization and adaptation are possible, and simulations evaluating potential feasibility for in vivo use are presented. The method allows general characteristics indicative of RF coil/pulse safety determined in situ...
  16. pmc System and SAR characterization in parallel RF transmission
    Yudong Zhu
    Department of Radiology, Center for Biomedical Imaging, New York University School of Medicine, New York, New York 10016, USA
    Magn Reson Med 67:1367-78. 2012
    ..The method was validated in simulation and experimental studies, showing promise as the foundation to a prospective paradigm where power and SAR are not only monitored but, through prediction-guided optimization, proactively managed...
  17. pmc Feasibility of three-dimensional MRI of proximal femur microarchitecture at 3 tesla using 26 receive elements without and with parallel imaging
    Gregory Chang
    Department of Radiology, Center for Musculoskeletal Care, NYU Langone Medical Center, New York, New York, USA
    J Magn Reson Imaging 40:229-38. 2014
    ..We assessed the feasibility of using a 26-element receive coil setup to perform 3 Tesla (T) MRI of proximal femur microarchitecture without and with PI...
  18. pmc MRI of the hip at 7T: feasibility of bone microarchitecture, high-resolution cartilage, and clinical imaging
    Gregory Chang
    Department of Radiology, NYU Langone Medical Center, Center for Musculoskeletal Care, New York, New York, USA
    J Magn Reson Imaging 39:1384-93. 2014
    ..To demonstrate the feasibility of performing bone microarchitecture, high-resolution cartilage, and clinical imaging of the hip at 7T...
  19. pmc Noninvasive quantification of intracellular sodium in human brain using ultrahigh-field MRI
    Lazar Fleysher
    Department of Radiology, Mount Sinai School of Medicine, New York, NY 10029, USA
    NMR Biomed 26:9-19. 2013
    ..This novel method allows noninvasive quantitative measurement of ISC and ISVF, opening many possibilities for structural and functional metabolic studies in healthy and diseased brains...
  20. ncbi request reprint Optimal coil array design: the two-coil case
    Pascal Spincemaille
    Department of Radiology, Weill Medical College of Cornell University, New York, NY 10022, USA
    Magn Reson Imaging 25:671-7. 2007
    ..For the infinite cylinder and the finite sphere, optimal solutions can be quite different from the "magical" overlap...
  21. pmc High-performance radiofrequency coils for (23)Na MRI: brain and musculoskeletal applications
    Graham C Wiggins
    Center for Advanced Imaging Innovation and Research CAI2R, New York University Langone Medical Center, New York, NY, 10016, USA
    NMR Biomed 29:96-106. 2016
    ..4 T (23)Na/(1)H brain coil. Great gains in (23)Na SNR have been made with many of these designs, but simultaneously achieving high performance for 1H remains elusive...
  22. pmc Effects of Anatomical Differences on Electromagnetic Fields, SAR, and Temperature Change
    Leeor Alon
    Department of Radiology, New York University School of Medicine, New York, NY, USA, 10016 Center for Advanced Imaging Innovation and Research CAIR, New York University School of Medicine, New York, NY, USA, 10016 NYU WIRELESS, NYU Poly Brooklyn Campus, Brooklyn, NY, 11201
    Concepts Magn Reson Part B Magn Reson Eng 46:8-18. 2016
    ..Reliance on B1+ distributions alone for validation of simulations and/or experiments with a sample or subject for assurance of safety in another should be performed with caution...
  23. ncbi request reprint On the noise correlation matrix for multiple radio frequency coils
    Ryan Brown
    Department of Radiology, Weill Medical College of Cornell University, New York, New York 10022, USA
    Magn Reson Med 58:218-24. 2007
    ..Previous conflicting arguments on noise correlation may be reconciled by differentiating between spectral and total noise correlation. These theoretical derivations are verified experimentally using two-coil arrays...
  24. doi request reprint Transmission line effects on the coil noise correlation matrix in MRI
    Ryan Brown
    Department of Radiology, Weill Medical College of Cornell University, New York, NY 10022, USA
    Conf Proc IEEE Eng Med Biol Soc 2008:2032-5. 2008
    ....
  25. pmc Subject- and resource-specific monitoring and proactive management of parallel radiofrequency transmission
    Cem M Deniz
    Center for Advanced Imaging Innovation and Research CAI2R and Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, New York, USA
    Magn Reson Med 76:20-31. 2016
    ..Develop a practical comprehensive package for proactive management of parallel radiofrequency (RF) transmission...
  26. pmc Dependence of B1+ and B1- Field Patterns of Surface Coils on the Electrical Properties of the Sample and the MR Operating Frequency
    Manushka V Vaidya
    Department of Radiology, Center for Advanced Imaging Innovation and Research CAIR and Bernard and Irene Schwartz Center for Biomedical Imaging, New York University School of Medicine, New York, NY 10016 The Sackler Institute of Graduate Biomedical Sciences, New York University School of Medicine, New York, NY 10016 NYU WIRELESS, Polytechnic Institute of New York University, Brooklyn, NY 11201
    Concepts Magn Reson Part B Magn Reson Eng 46:25-40. 2016
    ..This work provides a conceptual framework for understanding B1 spatial distributions for surface coils and can provide guidance for RF engineers...
  27. doi request reprint A low-cost Mr compatible ergometer to assess post-exercise phosphocreatine recovery kinetics
    Niels D Naimon
    Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, USA
    MAGMA . 2017
    ..To develop a low-cost pedal ergometer compatible with ultrahigh (7 T) field MR systems to reliably quantify metabolic parameters in human lower leg muscle using phosphorus magnetic resonance spectroscopy...
  28. ncbi request reprint Novel RF coil geometry for lower extremity imaging
    Ryan Brown
    MR Research Center, Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania 15213, USA
    Magn Reson Med 51:635-9. 2004
    ..5 over the GE 4-channel torso array. In vivo data acquired from 10 subjects show that the X array provided similar SNR improvement in spin-echo images and more vascular details in angiographic images compared to the torso array...
  29. pmc Magnetic Resonance Imaging of Phosphocreatine and Determination of BOLD Kinetics in Lower Extremity Muscles using a Dual-Frequency Coil Array
    Ryan Brown
    Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, USA
    Sci Rep 6:30568. 2016
    ....