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Connection

Howard Halpern to Electron Spin Resonance Spectroscopy

This is a "connection" page, showing publications Howard Halpern has written about Electron Spin Resonance Spectroscopy.
  1. Optimization-based image reconstruction from sparsely sampled data in electron paramagnetic resonance imaging. J Magn Reson. 2018 09; 294:24-34.
    View in: PubMed
    Score: 0.530
  2. Three novel accurate pixel-driven projection methods for 2D CT and 3D EPR imaging. J Xray Sci Technol. 2018; 26(1):83-102.
    View in: PubMed
    Score: 0.512
  3. Noninvasive Absolute Electron Paramagnetic Resonance Oxygen Imaging for the Assessment of Tissue Graft Oxygenation. Tissue Eng Part C Methods. 2018 01; 24(1):14-19.
    View in: PubMed
    Score: 0.505
  4. Spin Lattice Relaxation EPR pO2 Images May Direct the Location of Radiation Tumor Boosts to Enhance Tumor Cure. Cell Biochem Biophys. 2017 Dec; 75(3-4):295-298.
    View in: PubMed
    Score: 0.504
  5. In vivo preclinical cancer and tissue engineering applications of absolute oxygen imaging using pulse EPR. J Magn Reson. 2017 07; 280:149-157.
    View in: PubMed
    Score: 0.489
  6. Imaging thiol redox status in murine tumors in vivo with rapid-scan electron paramagnetic resonance. J Magn Reson. 2017 Mar; 276:31-36.
    View in: PubMed
    Score: 0.478
  7. Towards Human Oxygen Images with Electron Paramagnetic Resonance Imaging. Adv Exp Med Biol. 2016; 876:363-369.
    View in: PubMed
    Score: 0.446
  8. In Vivo pO2 Imaging of Tumors: Oxymetry with Very Low-Frequency Electron Paramagnetic Resonance. Methods Enzymol. 2015; 564:501-27.
    View in: PubMed
    Score: 0.438
  9. 3D pulse EPR imaging from sparse-view projections via constrained, total variation minimization. J Magn Reson. 2015 Sep; 258:49-57.
    View in: PubMed
    Score: 0.431
  10. Comparison of pulse sequences for R1-based electron paramagnetic resonance oxygen imaging. J Magn Reson. 2015 May; 254:56-61.
    View in: PubMed
    Score: 0.421
  11. Implementation of GPU-accelerated back projection for EPR imaging. J Xray Sci Technol. 2015; 23(4):423-33.
    View in: PubMed
    Score: 0.416
  12. Comparison of parabolic filtration methods for 3D filtered back projection in pulsed EPR imaging. J Magn Reson. 2014 Nov; 248:42-53.
    View in: PubMed
    Score: 0.407
  13. Orthogonal resonators for pulse in vivo electron paramagnetic imaging at 250 MHz. J Magn Reson. 2014 Mar; 240:45-51.
    View in: PubMed
    Score: 0.390
  14. How in vivo EPR measures and images oxygen. Adv Exp Med Biol. 2014; 812:113-119.
    View in: PubMed
    Score: 0.388
  15. What we learn from in vivo EPR oxygen images. Adv Exp Med Biol. 2014; 812:121-126.
    View in: PubMed
    Score: 0.388
  16. EPR image based oxygen movies for transient hypoxia. Adv Exp Med Biol. 2014; 812:127-133.
    View in: PubMed
    Score: 0.388
  17. Absolute oxygen R1e imaging in vivo with pulse electron paramagnetic resonance. Magn Reson Med. 2014 Aug; 72(2):362-8.
    View in: PubMed
    Score: 0.380
  18. EPR oxygen images predict tumor control by a 50% tumor control radiation dose. Cancer Res. 2013 Sep 01; 73(17):5328-35.
    View in: PubMed
    Score: 0.376
  19. In vivo electron paramagnetic resonance imaging of differential tumor targeting using cis-3,4-di(acetoxymethoxycarbonyl)-2,2,5,5-tetramethyl-1-pyrrolidinyloxyl. Magn Reson Med. 2014 Apr; 71(4):1650-6.
    View in: PubMed
    Score: 0.374
  20. Principal component analysis enhances SNR for dynamic electron paramagnetic resonance oxygen imaging of cycling hypoxia in vivo. Magn Reson Med. 2014 Jan; 71(1):440-50.
    View in: PubMed
    Score: 0.365
  21. Oxidative stress imaging in live animals with techniques based on electron paramagnetic resonance. Radiat Res. 2012 Apr; 177(4):514-23.
    View in: PubMed
    Score: 0.341
  22. Where it's at really matters: in situ in vivo vascular endothelial growth factor spatially correlates with electron paramagnetic resonance pO2 images in tumors of living mice. Mol Imaging Biol. 2011 Dec; 13(6):1107-13.
    View in: PubMed
    Score: 0.336
  23. Frequency bandwidth extension by use of multiple Zeeman field offsets for electron spin-echo EPR oxygen imaging of large objects. Med Phys. 2011 Jun; 38(6):3062-8.
    View in: PubMed
    Score: 0.325
  24. Comparison of 250 MHz electron spin echo and continuous wave oxygen EPR imaging methods for in vivo applications. Med Phys. 2011 Apr; 38(4):2045-52.
    View in: PubMed
    Score: 0.321
  25. Multiple-stepped Zeeman field offset method applied in acquiring enhanced resolution spin-echo electron paramagnetic resonance images. Med Phys. 2010 Oct; 37(10):5412-20.
    View in: PubMed
    Score: 0.310
  26. Electron paramagnetic resonance oxygen imaging of a rabbit tumor using localized spin probe delivery. Med Phys. 2010 Jun; 37(6):2553-9.
    View in: PubMed
    Score: 0.303
  27. Scaling of EPR spectral-spatial images with size of sample: images of a sample greater than 5 cm in linear dimension. Med Phys. 2007 Dec; 34(12):4854-9.
    View in: PubMed
    Score: 0.255
  28. Simulation of 4D spectral-spatial EPR images. J Magn Reson. 2007 Jul; 187(1):1-9.
    View in: PubMed
    Score: 0.242
  29. Comparison of local and global angular interpolation applied to spectral-spatial EPR image reconstruction. Med Phys. 2007 Mar; 34(3):1047-52.
    View in: PubMed
    Score: 0.242
  30. Targeted-ROI imaging in electron paramagnetic resonance imaging. J Magn Reson. 2007 Jul; 187(1):66-77.
    View in: PubMed
    Score: 0.241
  31. Object dependent sweep width reduction with spectral-spatial EPR imaging. J Magn Reson. 2007 May; 186(1):105-11.
    View in: PubMed
    Score: 0.241
  32. Spatially uniform sampling in 4-D EPR spectral-spatial imaging. J Magn Reson. 2007 Mar; 185(1):152-8.
    View in: PubMed
    Score: 0.238
  33. Electron paramagnetic resonance oxygen images correlate spatially and quantitatively with Oxylite oxygen measurements. Clin Cancer Res. 2006 Jul 15; 12(14 Pt 1):4209-17.
    View in: PubMed
    Score: 0.231
  34. Spin echo spectroscopic electron paramagnetic resonance imaging. Magn Reson Med. 2006 Apr; 55(4):904-12.
    View in: PubMed
    Score: 0.227
  35. EPR imaging: the relationship between CW spectra acquired from an extended sample subjected to fixed stepped gradients and the Radon transform of the resonance density. J Magn Reson. 2005 May; 174(1):88-96.
    View in: PubMed
    Score: 0.213
  36. The solution conformation of triarylmethyl radicals. J Magn Reson. 2005 Feb; 172(2):254-67.
    View in: PubMed
    Score: 0.209
  37. Directional TV algorithm for image reconstruction from sparse-view projections in EPR imaging. Phys Med Biol. 2024 May 30; 69(11).
    View in: PubMed
    Score: 0.200
  38. Sensing and Imaging Molecular Oxygen in Mammals with Spin Lattice Relaxation Electron Paramagnetic Resonance. Mol Imaging Biol. 2024 Jun; 26(3):373-381.
    View in: PubMed
    Score: 0.197
  39. Spectral fitting: the extraction of crucial information from a spectrum and a spectral image. Magn Reson Med. 2003 Jun; 49(6):1175-80.
    View in: PubMed
    Score: 0.186
  40. Direct Measurement and Imaging of Redox Status with Electron Paramagnetic Resonance. Antioxid Redox Signal. 2024 05; 40(13-15):850-862.
    View in: PubMed
    Score: 0.185
  41. Quantitative tumor oxymetric images from 4D electron paramagnetic resonance imaging (EPRI): methodology and comparison with blood oxygen level-dependent (BOLD) MRI. Magn Reson Med. 2003 Apr; 49(4):682-91.
    View in: PubMed
    Score: 0.184
  42. Oral administration is as effective as intraperitoneal administration of amifostine in decreasing nitroxide EPR signal decay in vivo. Biochim Biophys Acta. 2003 Mar 20; 1637(2):151-5.
    View in: PubMed
    Score: 0.184
  43. An iterative reconstruction algorithm without system matrix for EPR imaging. J Magn Reson. 2022 11; 344:107307.
    View in: PubMed
    Score: 0.178
  44. Imaging spin probe distribution in the tumor of a living mouse with 250 MHz EPR: correlation with BOLD MRI. Magn Reson Med. 2002 Apr; 47(4):634-8.
    View in: PubMed
    Score: 0.172
  45. Electron spin relaxation of triarylmethyl radicals in fluid solution. J Magn Reson. 2001 Sep; 152(1):156-61.
    View in: PubMed
    Score: 0.165
  46. A balanced total-variation-Chambolle-Pock algorithm for EPR imaging. J Magn Reson. 2021 07; 328:107009.
    View in: PubMed
    Score: 0.162
  47. Biological validation of electron paramagnetic resonance (EPR) image oxygen thresholds in tissue. J Physiol. 2021 03; 599(6):1759-1767.
    View in: PubMed
    Score: 0.152
  48. Merging Preclinical EPR Tomography with other Imaging Techniques. Cell Biochem Biophys. 2019 Sep; 77(3):187-196.
    View in: PubMed
    Score: 0.144
  49. Highly sensitive electron paramagnetic resonance nanoradicals for quantitative intracellular tumor oxymetric images. Int J Nanomedicine. 2019; 14:2963-2971.
    View in: PubMed
    Score: 0.140
  50. Oxygen-Guided Radiation Therapy. Int J Radiat Oncol Biol Phys. 2019 03 15; 103(4):977-984.
    View in: PubMed
    Score: 0.136
  51. In vivo detection of free radicals in real time by low-frequency electron paramagnetic resonance spectroscopy. Methods Mol Biol. 1998; 108:27-35.
    View in: PubMed
    Score: 0.128
  52. Rapid-scan EPR imaging. J Magn Reson. 2017 07; 280:140-148.
    View in: PubMed
    Score: 0.124
  53. Electron Paramagnetic Resonance pO2 Image Tumor Oxygen-Guided Radiation Therapy Optimization. Adv Exp Med Biol. 2017; 977:287-296.
    View in: PubMed
    Score: 0.120
  54. Correlation Between Hypoxia Proteins and EPR-Detected Hypoxia in Tumors. Adv Exp Med Biol. 2017; 977:319-325.
    View in: PubMed
    Score: 0.120
  55. Triarylmethyl Radical OX063d24 Oximetry: Electron Spin Relaxation at 250 MHz and RF Frequency Dependence of Relaxation and Signal-to-Noise. Adv Exp Med Biol. 2017; 977:327-334.
    View in: PubMed
    Score: 0.120
  56. Fast dynamic electron paramagnetic resonance (EPR) oxygen imaging using low-rank tensors. J Magn Reson. 2016 09; 270:176-182.
    View in: PubMed
    Score: 0.116
  57. In vivo spin-label murine pharmacodynamics using low-frequency electron paramagnetic resonance imaging. Biophys J. 1996 Jul; 71(1):403-9.
    View in: PubMed
    Score: 0.115
  58. A triarylmethyl spin label for long-range distance measurement at physiological temperatures using T1 relaxation enhancement. J Magn Reson. 2016 08; 269:50-54.
    View in: PubMed
    Score: 0.114
  59. Approaching Oxygen-Guided Intensity-Modulated Radiation Therapy. Adv Exp Med Biol. 2016; 876:185-193.
    View in: PubMed
    Score: 0.112
  60. In situ detection, by spin trapping, of hydroxyl radical markers produced from ionizing radiation in the tumor of a living mouse. Proc Natl Acad Sci U S A. 1995 Jan 31; 92(3):796-800.
    View in: PubMed
    Score: 0.105
  61. Radiation oxygen biology with pulse electron paramagnetic resonance imaging in animal tumors. Adv Exp Med Biol. 2013; 789:399-404.
    View in: PubMed
    Score: 0.091
  62. Use of the Frank sequence in pulsed EPR. J Magn Reson. 2011 Apr; 209(2):306-9.
    View in: PubMed
    Score: 0.079
  63. Anti-HER2 immunoliposomes for selective delivery of electron paramagnetic resonance imaging probes to HER2-overexpressing breast tumor cells. Breast Cancer Res Treat. 2010 Nov; 124(1):121-31.
    View in: PubMed
    Score: 0.074
  64. Cellular uptake of electron paramagnetic resonance imaging probes through endocytosis of liposomes. Biochim Biophys Acta. 2009 Oct; 1788(10):2301-8.
    View in: PubMed
    Score: 0.072
  65. Electron paramagnetic resonance oxygen image hypoxic fraction plus radiation dose strongly correlates with tumor cure in FSa fibrosarcomas. Int J Radiat Oncol Biol Phys. 2008 Jun 01; 71(2):542-9.
    View in: PubMed
    Score: 0.066
  66. Very-low-frequency electron paramagnetic resonance (EPR) imaging of nitroxide-loaded cells. Magn Reson Med. 2007 Oct; 58(4):850-4.
    View in: PubMed
    Score: 0.063
  67. Reduction of image artifacts in mice by bladder flushing with a novel double-lumen urethral catheter. Mol Imaging. 2006 Jul; 5(3):175-9.
    View in: PubMed
    Score: 0.058
  68. Nitroxide conjugate of a thermally responsive elastin-like polypeptide for noninvasive thermometry. Med Phys. 2004 Oct; 31(10):2755-62.
    View in: PubMed
    Score: 0.051
  69. Directional TV algorithm for fast EPR imaging. J Magn Reson. 2024 Apr; 361:107652.
    View in: PubMed
    Score: 0.049
  70. General synthesis of persistent trityl radicals for EPR imaging of biological systems. J Org Chem. 2002 Jul 12; 67(14):4635-9.
    View in: PubMed
    Score: 0.044
  71. The optimal 18F-fluoromisonidazole PET threshold to define tumor hypoxia in preclinical squamous cell carcinomas using pO2 electron paramagnetic resonance imaging as reference truth. Eur J Nucl Med Mol Imaging. 2022 Oct; 49(12):4014-4024.
    View in: PubMed
    Score: 0.044
  72. Improving Tumor Hypoxia Location in 18F-Misonidazole PET with Dynamic Contrast-enhanced MRI Using Quantitative Electron Paramagnetic Resonance Partial Oxygen Pressure Images. Radiol Imaging Cancer. 2021 03; 3(2):e200104.
    View in: PubMed
    Score: 0.040
  73. Small Animal IMRT Using 3D-Printed Compensators. Int J Radiat Oncol Biol Phys. 2021 06 01; 110(2):551-565.
    View in: PubMed
    Score: 0.039
  74. A one-step synthesis of 2-(2-Pyridyl)-3H-indol-3-one N-oxide: is it an efficient spin trap for hydroxyl radical? J Org Chem. 2000 Jul 14; 65(14):4460-3.
    View in: PubMed
    Score: 0.038
  75. Diminished aqueous microviscosity of tumors in murine models measured with in vivo radiofrequency electron paramagnetic resonance. Cancer Res. 1999 Nov 15; 59(22):5836-41.
    View in: PubMed
    Score: 0.036
  76. In Vivo EPR Resolution Enhancement Using Techniques Known from Quantum Computing Spin Technology. Adv Exp Med Biol. 2017; 977:335-339.
    View in: PubMed
    Score: 0.030
  77. EPR Imaging Spin Probe Trityl Radical OX063: A Method for Its Isolation from Animal Effluent, Redox Chemistry of Its Quinone Methide Oxidation Product, and in Vivo Application in a Mouse. Chem Res Toxicol. 2016 12 19; 29(12):2153-2156.
    View in: PubMed
    Score: 0.030
  78. Measurement of differences in pO2 in response to perfluorocarbon/carbogen in FSa and NFSa murine fibrosarcomas with low-frequency electron paramagnetic resonance oximetry. Radiat Res. 1996 May; 145(5):610-8.
    View in: PubMed
    Score: 0.029
  79. Oxymetry deep in tissues with low-frequency electron paramagnetic resonance. Proc Natl Acad Sci U S A. 1994 Dec 20; 91(26):13047-51.
    View in: PubMed
    Score: 0.026
  80. Measurement of bioreduction rates of cells with distinct responses to ionizing radiation and cisplatin. Biochim Biophys Acta. 1991 Jul 10; 1093(2-3):121-4.
    View in: PubMed
    Score: 0.020
  81. Use of a low-frequency ESR spectrometer: implications for spin-trapping free radicals, in situ. Free Radic Res Commun. 1991; 12-13 Pt 1:39-46.
    View in: PubMed
    Score: 0.020
  82. Spin trapping biologically generated free radicals: correlating formation with cellular injury. Methods Enzymol. 1990; 186:611-21.
    View in: PubMed
    Score: 0.018
  83. Influence of conformation on the EPR spectrum of 5,5-dimethyl-1-hydroperoxy-1-pyrrolidinyloxyl: a spin trapped adduct of superoxide. J Org Chem. 2004 Feb 20; 69(4):1321-30.
    View in: PubMed
    Score: 0.012
  84. Esters of 5-carboxyl-5-methyl-1-pyrroline N-oxide: a family of spin traps for superoxide. J Org Chem. 2003 Oct 03; 68(20):7811-7.
    View in: PubMed
    Score: 0.012
  85. In vivo in situ detection of nitric oxide using low-frequency EPR spectroscopy. Methods Mol Biol. 2002; 196:227-37.
    View in: PubMed
    Score: 0.011
  86. Spin trapping of nitric oxide by ferro-chelates: kinetic and in vivo pharmacokinetic studies. Biochim Biophys Acta. 1999 Apr 19; 1427(2):216-26.
    View in: PubMed
    Score: 0.009
  87. Kinetically specific spin-label substrates of liver alcohol dehydrogenase and of liver aldehyde dehydrogenase. Adv Exp Med Biol. 1993; 328:501-12.
    View in: PubMed
    Score: 0.006
  88. Direct measurement of nitroxide pharmacokinetics in isolated hearts situated in a low-frequency electron spin resonance spectrometer: implications for spin trapping and in vivo oxymetry. Proc Natl Acad Sci U S A. 1988 Oct; 85(20):7772-6.
    View in: PubMed
    Score: 0.004
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