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    Krishna Shrinivas Nayak, PhD

    TitleProfessor
    SchoolViterbi School of Engineering, BME
    DepartmentBiomedical Engineering
    AddressEEB 406
    University Park Campus
    Los Angeles California 90089-2564
    Phone+1 213 740 3494

       Biography 
       Awards and Honors
      2010 - 2011Sabbatical at NIH/NHLBI Laboratory for Cardiac Energetics
      2009 GE Healthcare Magnetic Resonance Thought Leader Award
      2008USC-Mellon Mentoring Award, Faculty Mentoring of Graduate Students
      2007USC Viterbi School of Engineering, Junior Faculty Research Award

       ORNG Applications 
       Websites
       In The News

       Bibliographic 
       Publications
      Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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      1. Chen W, Gillett E, Khoo MC, Davidson Ward SL, Nayak KS. Real-time multislice MRI during continuous positive airway pressure reveals upper airway response to pressure change. J Magn Reson Imaging. 2017 Feb 22..
        View in: PubMed
      2. Lingala SG, Zhu Y, Lim Y, Toutios A, Ji Y, Lo WC, Seiberlich N, Narayanan S, Nayak KS. Feasibility of through-time spiral generalized autocalibrating partial parallel acquisition for low latency accelerated real-time MRI of speech. Magn Reson Med. 2017 Feb 10..
        View in: PubMed
      3. Yoon AJ, Do HP, Cen S, Fong MW, Saremi F, Barr ML, Nayak KS. Assessment of segmental myocardial blood flow and myocardial perfusion reserve by adenosine-stress myocardial arterial spin labeling perfusion imaging. J Magn Reson Imaging. 2017 Feb 02..
        View in: PubMed
      4. Guo Y, Lingala SG, Zhu Y, Lebel RM, Nayak KS. Direct estimation of tracer-kinetic parameter maps from highly undersampled brain dynamic contrast enhanced MRI. Magn Reson Med. 2016 Nov 17..
        View in: PubMed
      5. Do HP, Yoon AJ, Fong MW, Saremi F, Barr ML, Nayak KS. Double-gated myocardial ASL perfusion imaging is robust to heart rate variation. Magn Reson Med. 2016 May 30..
        View in: PubMed
      6. Wu Z, Chen W, Nayak KS. Minimum Field Strength Simulator for Proton Density Weighted MRI. PLoS One. 2016; 11(5):e0154711..
        View in: PubMed
      7. Guo Y, Lebel RM, Zhu Y, Lingala SG, Shiroishi MS, Law M, Nayak K. High-resolution whole-brain DCE-MRI using constrained reconstruction: Prospective clinical evaluation in brain tumor patients. Med Phys. 2016 May; 43(5):2013..
        View in: PubMed
      8. Kober F, Jao T, Troalen T, Nayak KS. Myocardial arterial spin labeling. J Cardiovasc Magn Reson. 2016; 18(1):22..
        View in: PubMed
      9. Miao X, Lingala SG, Guo Y, Jao T, Usman M, Prieto C, Nayak KS. Accelerated cardiac cine MRI using locally low rank and finite difference constraints. Magn Reson Imaging. 2016 Jul; 34(6):707-14..
        View in: PubMed
      10. Lingala SG, Zhu Y, Kim YC, Toutios A, Narayanan S, Nayak KS. A fast and flexible MRI system for the study of dynamic vocal tract shaping. Magn Reson Med. 2016 Jan 17..
        View in: PubMed
      11. Wu Z, Chen W, Khoo MC, Davidson Ward SL, Nayak KS. Evaluation of upper airway collapsibility using real-time MRI. J Magn Reson Imaging. 2016 Jul; 44(1):158-67..
        View in: PubMed
      12. Zhu Y, Guo Y, Lingala SG, Lebel RM, Law M, Nayak KS. GOCART: GOlden-angle CArtesian randomized time-resolved 3D MRI. Magn Reson Imaging. 2016 Sep; 34(7):940-50..
        View in: PubMed
      13. Rispoli VC, Nielsen JF, Nayak KS, Carvalho JL. Computational fluid dynamics simulations of blood flow regularized by 3D phase contrast MRI. Biomed Eng Online. 2015; 14(1):110..
        View in: PubMed
      14. Wu Z, Han F, Hu P, Nayak KS. Anisotropic field-of-view support for golden angle radial imaging. Magn Reson Med. 2016 Jul; 76(1):229-36..
        View in: PubMed
      15. Nayak KS, Nielsen JF, Bernstein MA, Markl M, D Gatehouse P, M Botnar R, Saloner D, Lorenz C, Wen H, S Hu B, Epstein FH, N Oshinski J, Raman SV. Cardiovascular magnetic resonance phase contrast imaging. J Cardiovasc Magn Reson. 2015; 17(1):71..
        View in: PubMed
      16. Javed A, Kim YC, Khoo MC, Ward SL, Nayak KS. Dynamic 3-D MR Visualization and Detection of Upper Airway Obstruction During Sleep Using Region-Growing Segmentation. IEEE Trans Biomed Eng. 2016 Feb; 63(2):431-7..
        View in: PubMed
      17. Lingala SG, Sutton BP, Miquel ME, Nayak KS. Recommendations for real-time speech MRI. J Magn Reson Imaging. 2016 Jan; 43(1):28-44..
        View in: PubMed
      18. Narayanan S, Toutios A, Ramanarayanan V, Lammert A, Kim J, Lee S, Nayak K, Kim YC, Zhu Y, Goldstein L, Byrd D, Bresch E, Ghosh P, Katsamanis A, Proctor M. Real-time magnetic resonance imaging and electromagnetic articulography database for speech production research (TC). J Acoust Soc Am. 2014 Sep; 136(3):1307..
        View in: PubMed
      19. Do HP, Jao TR, Nayak KS. Myocardial arterial spin labeling perfusion imaging with improved sensitivity. J Cardiovasc Magn Reson. 2014; 16(1):15..
        View in: PubMed
      20. Zu Y, Narayanan SS, Kim YC, Nayak K, Bronson-Lowe C, Villegas B, Ouyoung M, Sinha UK. Evaluation of swallow function after tongue cancer treatment using real-time magnetic resonance imaging: a pilot study. JAMA Otolaryngol Head Neck Surg. 2013 Dec 1; 139(12):1312-9..
        View in: PubMed
      21. Sharma SD, Fong CL, Tzung BS, Law M, Nayak KS. Clinical image quality assessment of accelerated magnetic resonance neuroimaging using compressed sensing. Invest Radiol. 2013 Sep; 48(9):638-45..
        View in: PubMed
      22. Kim YC, Lebel RM, Wu Z, Ward SL, Khoo MC, Nayak KS. Real-time 3D magnetic resonance imaging of the pharyngeal airway in sleep apnea. Magn Reson Med. 2014 Apr; 71(4):1501-10..
        View in: PubMed
      23. Wu Z, Kim YC, Khoo MC, Nayak KS. Evaluation of an independent linear model for acoustic noise on a conventional MRI scanner and implications for acoustic noise reduction. Magn Reson Med. 2014 Apr; 71(4):1613-20..
        View in: PubMed
      24. Lebel RM, Jones J, Ferre JC, Law M, Nayak KS. Highly accelerated dynamic contrast enhanced imaging. Magn Reson Med. 2013 Mar 15..
        View in: PubMed
      25. Sharma SD, Hu HH, Nayak KS. Accelerated T2*-compensated fat fraction quantification using a joint parallel imaging and compressed sensing framework. J Magn Reson Imaging. 2013 Nov; 38(5):1267-75..
        View in: PubMed
      26. Toledo-Corral CM, Alderete TL, Hu HH, Nayak K, Esplana S, Liu T, Goran MI, Weigensberg MJ. Ectopic fat deposition in prediabetic overweight and obese minority adolescents. J Clin Endocrinol Metab. 2013 Mar; 98(3):1115-21..
        View in: PubMed
      27. Proctor M, Bresch E, Byrd D, Nayak K, Narayanan S. Paralinguistic mechanisms of production in human "beatboxing": a real-time magnetic resonance imaging study. J Acoust Soc Am. 2013 Feb; 133(2):1043-54..
        View in: PubMed
      28. Zhu Y, Kim YC, Proctor MI, Narayanan SS, Nayak KS. Dynamic 3-D visualization of vocal tract shaping during speech. IEEE Trans Med Imaging. 2013 May; 32(5):838-48..
        View in: PubMed
      29. Joshi AA, Hu HH, Leahy RM, Goran MI, Nayak KS. Automatic intra-subject registration-based segmentation of abdominal fat from water-fat MRI. J Magn Reson Imaging. 2013 Feb; 37(2):423-30..
        View in: PubMed
      30. Makhijani MK, Balu N, Yamada K, Yuan C, Nayak KS. Accelerated 3D MERGE carotid imaging using compressed sensing with a hidden markov tree model. J Magn Reson Imaging. 2012 Nov; 36(5):1194-202..
        View in: PubMed
      31. Shin T, Nayak KS, Santos JM, Nishimura DG, Hu BS, McConnell MV. Three-dimensional first-pass myocardial perfusion MRI using a stack-of-spirals acquisition. Magn Reson Med. 2013 Mar 1; 69(3):839-44..
        View in: PubMed
      32. Sharma SD, Hu HH, Nayak KS. Chemical shift encoded water-fat separation using parallel imaging and compressed sensing. Magn Reson Med. 2013 Feb; 69(2):456-66..
        View in: PubMed
      33. Smith TB, Nayak KS. Automatic off-resonance correction in spiral imaging with piecewise linear autofocus. Magn Reson Med. 2013 Jan; 69(1):82-90..
        View in: PubMed
      34. Danagoulian GS, Qin L, Nayak KS, Colen RR, Mukundan S, Harris MB, Jolesz FA, Shankaranarayanan A, Copen WA, Schmidt EJ. Comparison of wideband steady-state free precession and T(2) -weighted fast spin echo in spine disorder assessment at 1.5 and 3 T. Magn Reson Med. 2012 Nov; 68(5):1527-35..
        View in: PubMed
      35. Zun Z, Varadarajan P, Pai RG, Wong EC, Nayak KS. Arterial Spin Labeled CMR Detects Clinically Relevant Increase in Myocardial Blood Flow With Vasodilation. JACC Cardiovasc Imaging. 2011 Dec; 4(12):1253-61..
        View in: PubMed
      36. Kim YC, Proctor MI, Narayanan SS, Nayak KS. Improved imaging of lingual articulation using real-time multislice MRI. J Magn Reson Imaging. 2012 Apr; 35(4):943-8..
        View in: PubMed
      37. Smith TB, Nayak KS. Reduced field of view MRI with rapid, B(1) -robust outer volume suppression. Magn Reson Med. 2012 May; 67(5):1316-23..
        View in: PubMed
      38. Hamilton G, Smith DL, Bydder M, Nayak KS, Hu HH. MR properties of brown and white adipose tissues. J Magn Reson Imaging. 2011 Aug; 34(2):468-73..
        View in: PubMed
      39. Sharma SD, Hu HH, Nayak KS. Accelerated water-fat imaging using restricted subspace field map estimation and compressed sensing. Magn Reson Med. 2012 Mar; 67(3):650-9..
        View in: PubMed
      40. Rhee T, Lewis JP, Neumann U, Nayak KS. Scan-based volume animation driven by locally adaptive articulated registrations. IEEE Trans Vis Comput Graph. 2011 Mar; 17(3):368-79..
        View in: PubMed
      41. LĂȘ KA, Ventura EE, Fisher JQ, Davis JN, Weigensberg MJ, Punyanitya M, Hu HH, Nayak KS, Goran MI. Ethnic differences in pancreatic fat accumulation and its relationship with other fat depots and inflammatory markers. Diabetes Care. 2011 Feb; 34(2):485-90..
        View in: PubMed
      42. Hu HH, Chung SA, Nayak KS, Jackson HA, Gilsanz V. Differential computed tomographic attenuation of metabolically active and inactive adipose tissues: preliminary findings. J Comput Assist Tomogr. 2011 Jan-Feb; 35(1):65-71..
        View in: PubMed
      43. Hu HH, Li Y, Nagy TR, Goran MI, Nayak KS. Quantification of Absolute Fat Mass by Magnetic Resonance Imaging: a Validation Study against Chemical Analysis. Int J Body Compos Res. 2011; 9(3):111-122..
        View in: PubMed
      44. Kim YC, Narayanan SS, Nayak KS. Flexible retrospective selection of temporal resolution in real-time speech MRI using a golden-ratio spiral view order. Magn Reson Med. 2011 May; 65(5):1365-71..
        View in: PubMed
      45. Kim YC, Hayes CE, Narayanan SS, Nayak KS. Novel 16-channel receive coil array for accelerated upper airway MRI at 3 Tesla. Magn Reson Med. 2011 Jun; 65(6):1711-7..
        View in: PubMed
      46. Carvalho JL, Nielsen JF, Nayak KS. Feasibility of in vivo measurement of carotid wall shear rate using spiral Fourier velocity encoded MRI. Magn Reson Med. 2010 Jun; 63(6):1537-47..
        View in: PubMed
      47. Lee HL, Shankaranarayanan A, Pohost GM, Nayak KS. Improved 3-Tesla cardiac cine imaging using wideband. Magn Reson Med. 2010 Jun; 63(6):1716-22..
        View in: PubMed
      48. Hu HH, Smith DL, Nayak KS, Goran MI, Nagy TR. Identification of brown adipose tissue in mice with fat-water IDEAL-MRI. J Magn Reson Imaging. 2010 May; 31(5):1195-202..
        View in: PubMed
      49. Lee HL, Shankaranarayanan A, Pohost GM, Nayak KS. Improved coronary MR angiography using wideband steady state free precession at 3 tesla with sub-millimeter resolution. J Magn Reson Imaging. 2010 May; 31(5):1224-9..
        View in: PubMed
      50. Shin T, Pohost GM, Nayak KS. Systolic 3D first-pass myocardial perfusion MRI: Comparison with diastolic imaging in healthy subjects. Magn Reson Med. 2010 Apr; 63(4):858-64..
        View in: PubMed
      51. Sung K, Lee HL, Hu HH, Nayak KS. Prediction of myocardial signal during CINE balanced SSFP imaging. MAGMA. 2010 Apr; 23(2):85-91..
        View in: PubMed
      52. Hu HH, Nayak KS. Change in the proton T(1) of fat and water in mixture. Magn Reson Med. 2010 Feb; 63(2):494-501..
        View in: PubMed
      53. Smith T, Zun Z, Wong EC, Nayak KS. Design and use of variable flip angle schedules in transient balanced SSFP subtractive imaging. Magn Reson Med. 2010 Feb; 63(2):537-42..
        View in: PubMed
      54. Makhijani MK, Hu HH, Pohost GM, Nayak KS. Improved blood suppression in three-dimensional (3D) fast spin-echo (FSE) vessel wall imaging using a combination of double inversion-recovery (DIR) and diffusion sensitizing gradient (DSG) preparations. J Magn Reson Imaging. 2010 Feb; 31(2):398-405..
        View in: PubMed
      55. Hu HH, Kim HW, Nayak KS, Goran MI. Comparison of fat-water MRI and single-voxel MRS in the assessment of hepatic and pancreatic fat fractions in humans. Obesity (Silver Spring). 2010 Apr; 18(4):841-7..
        View in: PubMed
      56. Zun Z, Wong EC, Nayak KS. Assessment of myocardial blood flow (MBF) in humans using arterial spin labeling (ASL): feasibility and noise analysis. Magn Reson Med. 2009 Oct; 62(4):975-83..
        View in: PubMed
      57. Kim YC, Narayanan SS, Nayak KS. Accelerated three-dimensional upper airway MRI using compressed sensing. Magn Reson Med. 2009 Jun; 61(6):1434-40..
        View in: PubMed
      58. Nielsen JF, Nayak KS. Referenceless phase velocity mapping using balanced SSFP. Magn Reson Med. 2009 May; 61(5):1096-102..
        View in: PubMed
      59. Nielsen JF, Nayak KS. Interleaved balanced SSFP imaging: artifact reduction using gradient waveform grouping. J Magn Reson Imaging. 2009 Mar; 29(3):745-50..
        View in: PubMed
      60. Jung H, Sung K, Nayak KS, Kim EY, Ye JC. k-t FOCUSS: a general compressed sensing framework for high resolution dynamic MRI. Magn Reson Med. 2009 Jan; 61(1):103-16..
        View in: PubMed
      61. Shin T, Hu HH, Pohost GM, Nayak KS. Three dimensional first-pass myocardial perfusion imaging at 3T: feasibility study. J Cardiovasc Magn Reson. 2008; 10:57..
        View in: PubMed
      62. Hu HH, Nayak KS. Quantification of absolute fat mass using an adipose tissue reference signal model. J Magn Reson Imaging. 2008 Dec; 28(6):1483-91..
        View in: PubMed
      63. Sung K, Nayak KS. Design and use of tailored hard-pulse trains for uniformed saturation of myocardium at 3 Tesla. Magn Reson Med. 2008 Oct; 60(4):997-1002..
        View in: PubMed
      64. Lee HL, Nayak KS. Stabilization of alternating TR steady-state free precession sequences. J Magn Reson. 2008 Dec; 195(2):211-8..
        View in: PubMed
      65. Liu CY, Varadarajan P, Pohost GM, Nayak KS. Real-time color-flow MRI at 3 T using variable-density spiral phase contrast. Magn Reson Imaging. 2008 Jun; 26(5):661-6..
        View in: PubMed
      66. Sung K, Nayak KS. B1+ compensation in 3T cardiac imaging using short 2DRF pulses. Magn Reson Med. 2008 Mar; 59(3):441-6..
        View in: PubMed
      67. Sung K, Nayak KS. Measurement and characterization of RF nonuniformity over the heart at 3T using body coil transmission. J Magn Reson Imaging. 2008 Mar; 27(3):643-8..
        View in: PubMed
      68. Rhee T, Lewis JP, Neumann U, Nayak K. Creating an animatable 3D volume hand model from in vivo MRI. Stud Health Technol Inform. 2008; 132:402-7..
        View in: PubMed
      69. Kim YC, Nielsen JF, Nayak KS. Automatic correction of echo-planar imaging (EPI) ghosting artifacts in real-time interactive cardiac MRI using sensitivity encoding. J Magn Reson Imaging. 2008 Jan; 27(1):239-45..
        View in: PubMed
      70. Nielsen JF, Nayak KS. SSFP and GRE phase contrast imaging using a three-echo readout. Magn Reson Med. 2007 Dec; 58(6):1288-93..
        View in: PubMed
      71. Nayak KS, Lee HL, Hargreaves BA, Hu BS. Wideband SSFP: alternating repetition time balanced steady state free precession with increased band spacing. Magn Reson Med. 2007 Nov; 58(5):931-8..
        View in: PubMed
      72. Shin T, Nielsen JF, Nayak KS. Accelerating dynamic spiral MRI by algebraic reconstruction from undersampled k--t space. IEEE Trans Med Imaging. 2007 Jul; 26(7):917-24..
        View in: PubMed
      73. Carvalho JL, Nayak KS. Rapid quantitation of cardiovascular flow using slice-selective fourier velocity encoding with spiral readouts. Magn Reson Med. 2007 Apr; 57(4):639-46..
        View in: PubMed
      74. Bresch E, Nielsen J, Nayak K, Narayanan S. Synchronized and noise-robust audio recordings during realtime magnetic resonance imaging scans. J Acoust Soc Am. 2006 Oct; 120(4):1791-4..
        View in: PubMed
      75. Park JB, Hu BS, Conolly SM, Nayak KS, Nishimura DG. Rapid cardiac-output measurement with ungated spiral phase contrast. Magn Reson Med. 2006 Aug; 56(2):432-8..
        View in: PubMed
      76. Cunningham CH, Pauly JM, Nayak KS. Saturated double-angle method for rapid B1+ mapping. Magn Reson Med. 2006 Jun; 55(6):1326-33..
        View in: PubMed
      77. de la Pena E, Nguyen PK, Nayak KS, Yang PC, Rosenthal DN, Hu BS, Pauly JM, McConnell MV. Real-time color-flow CMR in adults with congenital heart disease. J Cardiovasc Magn Reson. 2006; 8(6):809-15..
        View in: PubMed
      78. Terashima M, Hyon M, de la Pena-Almaguer E, Yang PC, Hu BS, Nayak KS, Pauly JM, McConnell MV. High-resolution real-time spiral MRI for guiding vascular interventions in a rabbit model at 1.5 T. J Magn Reson Imaging. 2005 Nov; 22(5):687-90..
        View in: PubMed
      79. DiCarlo JC, Hargreaves BA, Nayak KS, Hu BS, Pauly JM, Nishimura DG. Variable-density one-shot Fourier velocity encoding. Magn Reson Med. 2005 Sep; 54(3):645-55..
        View in: PubMed
      80. Nayak KS, Hargreaves BA, Hu BS, Nishimura DG, Pauly JM, Meyer CH. Spiral balanced steady-state free precession cardiac imaging. Magn Reson Med. 2005 Jun; 53(6):1468-73..
        View in: PubMed
      81. Park JB, Santos JM, Hargreaves BA, Nayak KS, Sommer G, Hu BS, Nishimura DG. Rapid measurement of renal artery blood flow with ungated spiral phase-contrast MRI. J Magn Reson Imaging. 2005 May; 21(5):590-5..
        View in: PubMed
      82. Nayak KS, Hu BS. The future of real-time cardiac magnetic resonance imaging. Curr Cardiol Rep. 2005 Jan; 7(1):45-51..
        View in: PubMed
      83. Nayak KS, Cunningham CH, Santos JM, Pauly JM. Real-time cardiac MRI at 3 tesla. Magn Reson Med. 2004 Apr; 51(4):655-60..
        View in: PubMed
      84. Narayanan S, Nayak K, Lee S, Sethy A, Byrd D. An approach to real-time magnetic resonance imaging for speech production. J Acoust Soc Am. 2004 Apr; 115(4):1771-6..
        View in: PubMed
      85. Asakawa DS, Nayak KS, Blemker SS, Delp SL, Pauly JM, Nishimura DG, Gold GE. Real-time imaging of skeletal muscle velocity. J Magn Reson Imaging. 2003 Dec; 18(6):734-9..
        View in: PubMed
      86. Nayak KS, Hu BS, Nishimura DG. Rapid quantitation of high-speed flow jets. Magn Reson Med. 2003 Aug; 50(2):366-72..
        View in: PubMed
      87. Hargreaves BA, Vasanawala SS, Nayak KS, Hu BS, Nishimura DG. Fat-suppressed steady-state free precession imaging using phase detection. Magn Reson Med. 2003 Jul; 50(1):210-3..
        View in: PubMed
      88. Nayak KS, Hu BS. Triggered real-time MRI and cardiac applications. Magn Reson Med. 2003 Jan; 49(1):188-92..
        View in: PubMed
      89. Rivas PA, Nayak KS, Scott GC, McConnell MV, Kerr AB, Nishimura DG, Pauly JM, Hu BS. In vivo real-time intravascular MRI. J Cardiovasc Magn Reson. 2002; 4(2):223-32..
        View in: PubMed
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