Ruola Ning

Summary

Affiliation: University of Rochester
Country: USA

Publications

  1. ncbi request reprint Image denoising based on wavelets and multifractals for singularity detection
    Junmei Zhong
    Department of Radiology, University of Rochester, Rochester, NY 14642, USA
    IEEE Trans Image Process 14:1435-47. 2005
  2. ncbi request reprint Flat panel detector-based cone-beam volume CT angiography imaging: system evaluation
    R Ning
    Department of Radiology and Electrical and Computer Engineering, University of Rochester, NY 14642, USA
    IEEE Trans Med Imaging 19:949-63. 2000
  3. ncbi request reprint Flat panel detector-based cone beam computed tomography with a circle-plus-two-arcs data acquisition orbit: preliminary phantom study
    Ruola Ning
    Department of Radiology, University of Rochester, Rochester, New York 14642, USA
    Med Phys 30:1694-705. 2003
  4. ncbi request reprint Image denoising based on multiscale singularity detection for cone beam CT breast imaging
    Junmei Zhong
    Department of Radiology, University of Rochester, Rochester, NY 14642, USA
    IEEE Trans Med Imaging 23:696-703. 2004
  5. doi request reprint Cone Beam Breast CT noise reduction using 3D adaptive Gaussian filtering
    Xiaohua Zhang
    Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY, USA
    J Xray Sci Technol 17:319-33. 2009
  6. ncbi request reprint Volume fusion for two-circular-orbit cone-beam tomography
    Zikuan Chen
    Department of Imaging Sciences, University of Rochester, New York 14642, USA
    Appl Opt 45:5960-6. 2006
  7. pmc Enhancement of breast calcification visualization and detection using a modified PG method in Cone Beam Breast CT
    Jiangkun Liu
    Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY, USA
    J Xray Sci Technol 20:107-20. 2012
  8. doi request reprint Measurements of the modulation transfer function, normalized noise power spectrum and detective quantum efficiency for two flat panel detectors: a fluoroscopic and a cone beam computer tomography flat panel detectors
    Ricardo Betancourt Benítez
    Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
    J Xray Sci Technol 17:279-93. 2009
  9. ncbi request reprint X-ray scatter correction algorithm for cone beam CT imaging
    Ruola Ning
    Department of Radiology, University of Rochester, Rochester, New York 14642, USA
    Med Phys 31:1195-202. 2004
  10. pmc Dynamic cone beam CT angiography of carotid and cerebral arteries using canine model
    Weixing Cai
    Department of Imaging Sciences, University of Rochester, Rochester, New York 14642, USA
    Med Phys 39:543-53. 2012

Collaborators

Detail Information

Publications20

  1. ncbi request reprint Image denoising based on wavelets and multifractals for singularity detection
    Junmei Zhong
    Department of Radiology, University of Rochester, Rochester, NY 14642, USA
    IEEE Trans Image Process 14:1435-47. 2005
    ..Experimental results demonstrated that this algorithm could achieve both good visual quality and high PSNR for the denoised images...
  2. ncbi request reprint Flat panel detector-based cone-beam volume CT angiography imaging: system evaluation
    R Ning
    Department of Radiology and Electrical and Computer Engineering, University of Rochester, NY 14642, USA
    IEEE Trans Med Imaging 19:949-63. 2000
    ..The results also suggest that to use an FPD for large cone-angle applications, such as body angiography, further investigations are required...
  3. ncbi request reprint Flat panel detector-based cone beam computed tomography with a circle-plus-two-arcs data acquisition orbit: preliminary phantom study
    Ruola Ning
    Department of Radiology, University of Rochester, Rochester, New York 14642, USA
    Med Phys 30:1694-705. 2003
    ....
  4. ncbi request reprint Image denoising based on multiscale singularity detection for cone beam CT breast imaging
    Junmei Zhong
    Department of Radiology, University of Rochester, Rochester, NY 14642, USA
    IEEE Trans Med Imaging 23:696-703. 2004
    ..This denoising result indicates that in the clinical application of CBCT breast imaging, the patient radiation dose can be significantly reduced...
  5. doi request reprint Cone Beam Breast CT noise reduction using 3D adaptive Gaussian filtering
    Xiaohua Zhang
    Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY, USA
    J Xray Sci Technol 17:319-33. 2009
    ..We also proposed a three-dimensional Gaussian filtering scheme to reduce the noise in 3D reconstructed images adaptively without much blurring of detail signal...
  6. ncbi request reprint Volume fusion for two-circular-orbit cone-beam tomography
    Zikuan Chen
    Department of Imaging Sciences, University of Rochester, New York 14642, USA
    Appl Opt 45:5960-6. 2006
    ..In principle, this volume-fusion scheme is applicable for general cone-beam tomography with multiple nonorthogonal and noncircular orbits...
  7. pmc Enhancement of breast calcification visualization and detection using a modified PG method in Cone Beam Breast CT
    Jiangkun Liu
    Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY, USA
    J Xray Sci Technol 20:107-20. 2012
    ..This technique was also proved to be useful in reducing the x-ray dose without degrading visualization and detectability of calcifications...
  8. doi request reprint Measurements of the modulation transfer function, normalized noise power spectrum and detective quantum efficiency for two flat panel detectors: a fluoroscopic and a cone beam computer tomography flat panel detectors
    Ricardo Betancourt Benítez
    Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
    J Xray Sci Technol 17:279-93. 2009
    ....
  9. ncbi request reprint X-ray scatter correction algorithm for cone beam CT imaging
    Ruola Ning
    Department of Radiology, University of Rochester, Rochester, New York 14642, USA
    Med Phys 31:1195-202. 2004
    ..The results indicate that the beam stop array-based scatter correction algorithm is practical and effective to reduce and correct x-ray scatter for a CBCT imaging task...
  10. pmc Dynamic cone beam CT angiography of carotid and cerebral arteries using canine model
    Weixing Cai
    Department of Imaging Sciences, University of Rochester, Rochester, New York 14642, USA
    Med Phys 39:543-53. 2012
    ....
  11. ncbi request reprint Supergridded cone-beam reconstruction and its application to point-spread function calculation
    Zikuan Chen
    Department of Radiology, University of Rochester, Box 648, 601 Elmwood Avenue, Rochester, New York 14642, USA
    Appl Opt 44:4615-24. 2005
    ..In comparison with a postreconstruction image refinement technique (upsampling and interpolation), the supergridded reconstruction could produce better PSFs (in terms of a smaller FWHM and PSF fitting error)...
  12. doi request reprint NPS characterization and evaluation of a cone beam CT breast imaging system
    Ricardo Betancourt Benítez
    Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY 14642, USA
    J Xray Sci Technol 17:17-40. 2009
    ..Finally, the results of the last part of this investigation suggest that this imaging system does not have a 3D isotropic noise distribution along the z-axis; yielding less noisy images at around z = 0.00 m and z = 80 mm...
  13. ncbi request reprint Why should breast tumour detection go three dimensional?
    Zikuan Chen
    Department of Radiology, University of Rochester, Box 648, 601 Elmwood Avenue, Rochester, NY 14642, USA
    Phys Med Biol 48:2217-28. 2003
    ..The discussion is demonstrated with an experiment with a breast surgical specimen. In conclusion, we strongly believe that 3D volumetric representation allows for more accurate breast tumour detection...
  14. ncbi request reprint Three-dimensional point spread function measurement of cone-beam computed tomography system by iterative edge-blurring algorithm
    Zikuan Chen
    Department of Radiology, University of Rochester, Box 648, 601 Elmwood Avenue, Rochester, NY 14642, USA
    Phys Med Biol 49:1865-80. 2004
    ..Specifically, we obtained the FWHMs for three specific locations at (0, 0, -40 mm), (0, 0, 0) and (0, 0, 40 mm), which are given by 0.92 +/- 0.10 mm, 0.65 +/- 0.08 mm and 0.93 +/- 0.10 mm, respectively...
  15. doi request reprint Scatter correction for clinical cone beam CT breast imaging based on breast phantom studies
    Weixing Cai
    Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
    J Xray Sci Technol 19:91-109. 2011
    ..The SPR method does not increase tissue contrast or noise while the NSR method increases both...
  16. ncbi request reprint Filling the Radon domain in computed tomography by local convex combination
    Zikuan Chen
    Department of Radiology, University of Rochester, Box 648, 601 Elmwood Avenue, Rochester, New York 14642, USA
    Appl Opt 42:7043-51. 2003
    ..Algorithms and a simulation demonstration are provided...
  17. ncbi request reprint Forest representation of vessels in cone-beam computed tomographic angiography
    Zikuan Chen
    Department of Radiology, University of Rochester, Box 648, 601 Elmwood Avenue, Rochester, NY 14642, USA
    Comput Med Imaging Graph 29:1-14. 2005
    ..We experimentally demonstrate the forest representation of a dog's carotid arteries in a CBCTA system. In principle, the forest representation is useful for managing vessels in both 2D angiographic images and 3D angiographic volumes...
  18. ncbi request reprint Cone-beam volume CT breast imaging: feasibility study
    Biao Chen
    Department of Radiology, University of Rochester, New York 14642, USA
    Med Phys 29:755-70. 2002
    ....
  19. ncbi request reprint Breast volume denoising and noise characterization by 3D wavelet transform
    Zikuan Chen
    University of Rochester, Department of Radiology, 601 Elmwood Avenue, Rochester, NY 14642, USA
    Comput Med Imaging Graph 28:235-46. 2004
    ..Through 3D visualization, the spatial structure in a subband can also be visually perceived. Experimental demonstration with the breast volume reconstructed from a specimen is provided...
  20. pmc Circle plus Partial Helical Scan Scheme for a Flat Panel Detector-Based Cone Beam Breast X-Ray CT
    Dong Yang
    Department of Imaging Sciences, University of Rochester Medical Center, 601 Elmwood Avenue Rochester, NY 14642, USA
    Int J Biomed Imaging 2009:637867. 2009
    ..Computer simulations using a numerical breast phantom demonstrated the practical feasibility of this new scheme and correction to those artifacts to a certain degree...