Roland Krug

Summary

Affiliation: University of California
Country: USA

Publications

  1. pmc Ultrashort echo time MRI of cortical bone at 7 tesla field strength: a feasibility study
    Roland Krug
    Department of Radiology and Biomedical Imaging, University of California, San Francisco, California, USA
    J Magn Reson Imaging 34:691-5. 2011
  2. doi request reprint In vivo ultra-high-field magnetic resonance imaging of trabecular bone microarchitecture at 7 T
    Roland Krug
    Department of Radiology and Biomedical Imaging, University of California, San Francisco, California, USA
    J Magn Reson Imaging 27:854-9. 2008
  3. ncbi request reprint In vivo bone and cartilage MRI using fully-balanced steady-state free-precession at 7 tesla
    Roland Krug
    Department of Radiology, University of California, San Francisco, San Francisco, California, USA
    Magn Reson Med 58:1294-8. 2007
  4. pmc High-resolution imaging techniques for the assessment of osteoporosis
    Roland Krug
    MQIR, Department of Radiology and Biomedical Imaging, University of California San Francisco, UCSF China Basin Landing, 185 Berry Street, San Francisco, CA 94107, USA
    Radiol Clin North Am 48:601-21. 2010
  5. doi request reprint Rapid in vivo musculoskeletal MR with parallel imaging at 7T
    Suchandrima Banerjee
    Radiology, University of California, San Francisco, San Francisco, California 94158, USA
    Magn Reson Med 59:655-60. 2008
  6. doi request reprint Isotropic 3-dimensional fast spin echo imaging versus standard 2-dimensional imaging at 3.0 T of the knee: artificial cartilage and meniscal lesions in a porcine model
    Oliver Ristow
    Department of Radiology, University of California San Francisco, San Francisco, CA, USA
    J Comput Assist Tomogr 34:260-9. 2010
  7. doi request reprint Longitudinal evaluation of the effects of alendronate on MRI bone microarchitecture in postmenopausal osteopenic women
    Jenny Folkesson
    Musculoskeletal Quantitative Imaging Research Group MQIR, Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
    Bone 48:611-21. 2011
  8. pmc 7T human spine imaging arrays with adjustable inductive decoupling
    Bing Wu
    Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94158, USA
    IEEE Trans Biomed Eng 57:397-403. 2010
  9. ncbi request reprint Wavelet-based characterization of vertebral trabecular bone structure from magnetic resonance images at 3 T compared with micro-computed tomographic measurements
    Roland Krug
    MQIR, Department of Radiology, University of California, San Francisco, CA 94143 2520, USA
    Magn Reson Imaging 25:392-8. 2007
  10. ncbi request reprint Evaluation of correction methods for coil-induced intensity inhomogeneities and their influence on trabecular bone structure parameters from MR images
    Jenny Folkesson
    Department of Radiology and Biomedical Imaging, Musculoskeletal and Quantitative Imaging Research Group MQIR, University of California, San Francisco, California 94158, USA
    Med Phys 36:1267-74. 2009

Detail Information

Publications27

  1. pmc Ultrashort echo time MRI of cortical bone at 7 tesla field strength: a feasibility study
    Roland Krug
    Department of Radiology and Biomedical Imaging, University of California, San Francisco, California, USA
    J Magn Reson Imaging 34:691-5. 2011
    ..To implement and examine the feasibility of a three-dimensional (3D) ultrashort TE (UTE) sequence on a 7 Tesla (T) clinical MR scanner in comparison with 3T MRI at high isotropic resolution...
  2. doi request reprint In vivo ultra-high-field magnetic resonance imaging of trabecular bone microarchitecture at 7 T
    Roland Krug
    Department of Radiology and Biomedical Imaging, University of California, San Francisco, California, USA
    J Magn Reson Imaging 27:854-9. 2008
    ....
  3. ncbi request reprint In vivo bone and cartilage MRI using fully-balanced steady-state free-precession at 7 tesla
    Roland Krug
    Department of Radiology, University of California, San Francisco, San Francisco, California, USA
    Magn Reson Med 58:1294-8. 2007
    ..3) compared with 3T (21.3 +/- 3.3). Bone SNR increased from 11.8 +/- 2.0 to 13.2 +/- 2.5 at the higher field strength. We concluded that there is SNR benefit and great potential for bone and cartilage imaging at higher field strength...
  4. pmc High-resolution imaging techniques for the assessment of osteoporosis
    Roland Krug
    MQIR, Department of Radiology and Biomedical Imaging, University of California San Francisco, UCSF China Basin Landing, 185 Berry Street, San Francisco, CA 94107, USA
    Radiol Clin North Am 48:601-21. 2010
    ..Details regarding imaging protocols as well as image postprocessing methods for bone structure quantification are discussed...
  5. doi request reprint Rapid in vivo musculoskeletal MR with parallel imaging at 7T
    Suchandrima Banerjee
    Radiology, University of California, San Francisco, San Francisco, California 94158, USA
    Magn Reson Med 59:655-60. 2008
    ..Robust quantification of bone and cartilage metrics could be derived from accelerated ankle and knee acquisitions. PI can enhance the clinical feasibility of in vivo bone and cartilage HR-MRI for osteoporosis and osteoarthritis at 7T...
  6. doi request reprint Isotropic 3-dimensional fast spin echo imaging versus standard 2-dimensional imaging at 3.0 T of the knee: artificial cartilage and meniscal lesions in a porcine model
    Oliver Ristow
    Department of Radiology, University of California San Francisco, San Francisco, CA, USA
    J Comput Assist Tomogr 34:260-9. 2010
    ....
  7. doi request reprint Longitudinal evaluation of the effects of alendronate on MRI bone microarchitecture in postmenopausal osteopenic women
    Jenny Folkesson
    Musculoskeletal Quantitative Imaging Research Group MQIR, Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
    Bone 48:611-21. 2011
    ..Treatment effects were observed in the distal tibia after 24 months. The BE-FCM method increased correlations to HR-pQCT-based parameters...
  8. pmc 7T human spine imaging arrays with adjustable inductive decoupling
    Bing Wu
    Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94158, USA
    IEEE Trans Biomed Eng 57:397-403. 2010
    ..Preliminary results of human spine images acquired using the transceiver arrays demonstrate the feasibility of the design for ultrahigh-field MR applications and its robust performance for parallel imaging...
  9. ncbi request reprint Wavelet-based characterization of vertebral trabecular bone structure from magnetic resonance images at 3 T compared with micro-computed tomographic measurements
    Roland Krug
    MQIR, Department of Radiology, University of California, San Francisco, CA 94143 2520, USA
    Magn Reson Imaging 25:392-8. 2007
    ....
  10. ncbi request reprint Evaluation of correction methods for coil-induced intensity inhomogeneities and their influence on trabecular bone structure parameters from MR images
    Jenny Folkesson
    Department of Radiology and Biomedical Imaging, Musculoskeletal and Quantitative Imaging Research Group MQIR, University of California, San Francisco, California 94158, USA
    Med Phys 36:1267-74. 2009
    ....
  11. doi request reprint Imaging of the musculoskeletal system in vivo using ultra-high field magnetic resonance at 7 T
    Roland Krug
    Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94143, USA
    Invest Radiol 44:613-8. 2009
    ..Imaging of more central body parts such as the spine at 7 T is still in its infancy and dedicated coils have to be developed...
  12. doi request reprint Geodesic topological analysis of trabecular bone microarchitecture from high-spatial resolution magnetic resonance images
    Julio Carballido-Gamio
    Musculoskeletal and Quantitative Imaging Research Group, Department of Radiology, University of California, San Francisco, San Francisco, California 94158, USA
    Magn Reson Med 61:448-56. 2009
    ..95; p < 0.001). Results indicate that GTA can substantially contribute in studies of osteoporosis involving imaging of the trabecular bone microarchitecture...
  13. doi request reprint MRI of the spine: image quality and normal-neoplastic bone marrow contrast at 3 T versus 1.5 T
    Jian Zhao
    Department of Radiology, University of California, San Francisco, 400 Parnassus Ave, A 367, Box 0628, San Francisco, CA 94143 0628, USA
    AJR Am J Roentgenol 192:873-80. 2009
    ..The objectives of our study were to compare image quality of the spine and visualization of spine abnormalities at 3 T and 1.5 T as well as to evaluate differences in quantitative assessment of normal and neoplastic vertebral bone marrow...
  14. pmc Assessment of cartilage-dedicated sequences at ultra-high-field MRI: comparison of imaging performance and diagnostic confidence between 3.0 and 7.0 T with respect to osteoarthritis-induced changes at the knee joint
    Robert Stahl
    Musculoskeletal and Quantitative Imaging Group, Department of Radiology, University of California, San Francisco, CA 94107 0946, USA
    Skeletal Radiol 38:771-83. 2009
    ..0 T ultra-high-field (UHF) magnetic resonance imaging (MRI) and to compare imaging performance and diagnostic confidence concerning osteoarthritis (OA)-induced changes at 7.0 and 3.0 T MRI...
  15. doi request reprint Feasibility and reproducibility of relaxometry, morphometric, and geometrical measurements of the hip joint with magnetic resonance imaging at 3T
    Julio Carballido-Gamio
    Department of Radiology, University of California San Francisco, 1700 4th Street, San Francisco, CA 94158, USA
    J Magn Reson Imaging 28:227-35. 2008
    ..To test the feasibility of in vivo magnetic resonance T(1rho) relaxation time measurements of hip cartilage, and quantify the reproducibility of hip cartilage thickness, volume, T(2), T(1rho), and size of femoral head measurements...
  16. doi request reprint Prevalence of pathologic findings in asymptomatic knees of marathon runners before and after a competition in comparison with physically active subjects-a 3.0 T magnetic resonance imaging study
    Robert Stahl
    Musculoskeletal and Quantitative Imaging Group, Department of Radiology, University of California, San Francisco, 185 Berry Street, Suite 350, San Francisco, CA 94107 0946, USA
    Skeletal Radiol 37:627-38. 2008
    ..To compare the diagnostic performance of cartilage-dedicated magnetic resonance imaging (MRI) sequences at 3.0 T...
  17. pmc Patellar cartilage: T2 values and morphologic abnormalities at 3.0-T MR imaging in relation to physical activity in asymptomatic subjects from the osteoarthritis initiative
    Christoph Stehling
    Musculoskeletal and Quantitative Imaging Group, Department of Radiology, University of California San Francisco, 185 Berry St, Suite 350, San Francisco, CA 94107, USA
    Radiology 254:509-20. 2010
    ..To study the interrelationship between patella cartilage T2 relaxation time, other knee abnormalities, and physical activity levels in asymptomatic subjects from the Osteoarthritis Initiative (OAI) incidence cohort...
  18. ncbi request reprint In vivo determination of bone structure in postmenopausal women: a comparison of HR-pQCT and high-field MR imaging
    Galateia J Kazakia
    Musculoskeletal and Quantitative Imaging Research Group, Department of Radiology, University of California, San Francisco, California 94158, USA
    J Bone Miner Res 23:463-74. 2008
    ..Significant but moderate correlations and 2- to 4-fold discrepancies in parameter values were detected, suggesting that differences in acquisition and analysis must be considered when interpreting data from these imaging modalities...
  19. pmc Quantitative assessment of fat infiltration in the rotator cuff muscles using water-fat MRI
    Lorenzo Nardo
    Musculoskeletal and Quantitative Imaging Research, Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, USA
    J Magn Reson Imaging 39:1178-85. 2014
    ..To evaluate a chemical shift-based fat quantification technique in the rotator cuff muscles in comparison with the semiquantitative Goutallier fat infiltration classification (GC) and to assess their relationship with clinical parameters...
  20. ncbi request reprint Fast high-spatial-resolution MRI of the ankle with parallel imaging using GRAPPA at 3 T
    Jan Stefan Bauer
    Department of Radiology, University of California at San Francisco, San Francisco, CA, USA
    AJR Am J Roentgenol 189:240-5. 2007
    ..The purpose of our study was to compare an autocalibrating parallel imaging technique at 3 T with standard acquisitions at 3 and 1.5 T for small-field-of-view imaging of the ankle...
  21. pmc Comparison of clinical semi-quantitative assessment of muscle fat infiltration with quantitative assessment using chemical shift-based water/fat separation in MR studies of the calf of post-menopausal women
    Hamza Alizai
    Musculoskeletal and Quantitative Imaging Research Group, Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry Street, Suite 350, San Francisco, CA 94107, USA
    Eur Radiol 22:1592-600. 2012
    ..The goal of this study was to compare the semi-quantitative Goutallier classification for fat infiltration with quantitative fat-fraction derived from a magnetic resonance imaging (MRI) chemical shift-based water/fat separation technique...
  22. doi request reprint Isotropic 3D fast spin-echo imaging versus standard 2D imaging at 3.0 T of the knee--image quality and diagnostic performance
    Oliver Ristow
    Department of Radiology, University of California San Francisco, San Francisco, CA, USA
    Eur Radiol 19:1263-72. 2009
    ..In conclusion, isotropic 3D FSE IM-w imaging may enhance standard knee MRI by increased visualization of high contrast lesions; however, 3D FSE image quality was lower...
  23. ncbi request reprint Automatic prospective registration of high-resolution trabecular bone images of the tibia
    Janet Blumenfeld
    Department of Radiology, University of California, 1700 4th St, Suite 203, Box 2520, San Francisco, CA 94107, USA
    Ann Biomed Eng 35:1924-31. 2007
    ..5% range which are within values previously reported in the literature. Results suggest that this algorithm is robust enough to be used in different musculoskeletal imaging applications including the hip as well as the tibia...
  24. ncbi request reprint Volumetric cartilage measurements of porcine knee at 1.5-T and 3.0-T MR imaging: evaluation of precision and accuracy
    Jan S Bauer
    Musculoskeletal and Quantitative Imaging Research, Department of Radiology, University of California, San Francisco, Calif, USA
    Radiology 241:399-406. 2006
    ..To compare the precision and accuracy of 3.0-T and 1.5-T magnetic resonance (MR) imaging in the quantification of cartilage volume by using direct volumetric measurements as a reference standard...
  25. ncbi request reprint Feasibility of in vivo structural analysis of high-resolution magnetic resonance images of the proximal femur
    Roland Krug
    MQIR, Department of Radiology, University of California, San Francisco, CA, USA
    Osteoporos Int 16:1307-14. 2005
    ..This feasibility study establishes the potential of MRI as a means of imaging proximal femur structure, and improvements in technique and resolution enhancements are warranted...
  26. ncbi request reprint Application of refocused steady-state free-precession methods at 1.5 and 3 T to in vivo high-resolution MRI of trabecular bone: simulations and experiments
    Suchandrima Banerjee
    Department of Radiology, University of California, San Francisco, San Francisco, California 94107, USA
    J Magn Reson Imaging 21:818-25. 2005
    ..To evaluate the potential of fully-balanced steady-state free-precession (SSFP) sequences in in vivo high-resolution (HR) MRI of trabecular bone at field strengths of 1.5 and 3 T by simulation and experimental methods...
  27. ncbi request reprint Determination of aortic compliance from magnetic resonance images using an automatic active contour model
    Roland Krug
    Deutsches Krebsforschungszentrum DKFZ, Abteilung Biophysik und Medizinische Strahlenphysik E0201, Im Neuenheimer Feld 280, D 69120 Heidelberg, Germany
    Phys Med Biol 48:2391-404. 2003
    ....

Research Grants2

  1. In Vivo Assessment of Trabecular Microstructure at the Proximal Femur
    Roland Krug; Fiscal Year: 2010
    ..The proposed study will provide the first assessment of trabecular bone microstructure in the proximal femur. The results of the proposed research may also influence treatment strategies. ..
  2. In Vivo Assessment of Trabecular Microstructure at the Proximal Femur
    Roland Krug; Fiscal Year: 2009
    ..The proposed study will provide the first assessment of trabecular bone microstructure in the proximal femur. The results of the proposed research may also influence treatment strategies. ..