Keh Shih Chuang

Summary

Affiliation: National Tsing Hua University
Country: Taiwan

Publications

  1. ncbi request reprint Determination of beam intensity in a single step for IMRT inverse planning
    Keh Shih Chuang
    Department of Nuclear Science, National Tsing Hua University, Taiwan
    Phys Med Biol 48:293-306. 2003
  2. ncbi request reprint Fuzzy c-means clustering with spatial information for image segmentation
    Keh Shih Chuang
    Department of Nuclear Science, National Tsing Hua University, Hsinchu 30013 Taiwan
    Comput Med Imaging Graph 30:9-15. 2006
  3. ncbi request reprint A maximum likelihood expectation maximization algorithm with thresholding
    Keh Shih Chuang
    Department of Nuclear Science, National Tsing Hua University, Hsinchu 30013, Taiwan
    Comput Med Imaging Graph 29:571-8. 2005
  4. pmc Biological impact of geometric uncertainties: what margin is needed for intra-hepatic tumors?
    Hsiang Chi Kuo
    Department of Radiation Oncology, Montefiore Medical Center, USA
    Radiat Oncol 5:48. 2010
  5. ncbi request reprint A novel image quality index using Moran I statistics
    Tzong Jer Chen
    Department of Nuclear Science, National Tsing Hua University, Taiwan
    Phys Med Biol 48:N131-7. 2003
  6. pmc Quality degradation in lossy wavelet image compression
    Tzong Jer Chen
    Department of Nuclear Sciences, National Tsing Hua University, Hsinchu 30043, Taiwan
    J Digit Imaging 16:210-5. 2003
  7. ncbi request reprint Scatter correction for 3D PET using beam stoppers combined with dual-energy window acquisition: a feasibility study
    Jay Wu
    Department of Nuclear Science, National Tsing Hua University, Taiwan Health Physics Division, Institute of Nuclear Energy Research, Atomic Energy Council, Taiwan
    Phys Med Biol 50:4593-607. 2005
  8. ncbi request reprint Analysis of organ motion effects on the effective fluences for liver IMRT
    Hsiang Chi Kuo
    Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan
    Phys Med Biol 52:4227-44. 2007
  9. ncbi request reprint A statistical method for evaluation quality of medical images: a case study in bit discarding and image compression
    Tzong Jer Chen
    Department of Nuclear Science, National Tsing Hua University, Hsinchu 30043, Taiwan, ROC
    Comput Med Imaging Graph 28:167-75. 2004
  10. pmc Total body irradiation with step translation and dynamic field matching
    Ho Hsing Chen
    Department of Radiation Oncology, Taichung Veterans General Hospital, 1650 Taiwan Boulevard Sect 4, Taichung 40705, Taiwan Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Taiwan
    Biomed Res Int 2013:216034. 2013

Collaborators

Detail Information

Publications12

  1. ncbi request reprint Determination of beam intensity in a single step for IMRT inverse planning
    Keh Shih Chuang
    Department of Nuclear Science, National Tsing Hua University, Taiwan
    Phys Med Biol 48:293-306. 2003
    ..This method estimates the beam intensity in one single step and the computation time is extremely fast and can be finished in less than one minute using a regular PC...
  2. ncbi request reprint Fuzzy c-means clustering with spatial information for image segmentation
    Keh Shih Chuang
    Department of Nuclear Science, National Tsing Hua University, Hsinchu 30013 Taiwan
    Comput Med Imaging Graph 30:9-15. 2006
    ..This technique is a powerful method for noisy image segmentation and works for both single and multiple-feature data with spatial information...
  3. ncbi request reprint A maximum likelihood expectation maximization algorithm with thresholding
    Keh Shih Chuang
    Department of Nuclear Science, National Tsing Hua University, Hsinchu 30013, Taiwan
    Comput Med Imaging Graph 29:571-8. 2005
    ..The reconstruction performance improves with the increase of the threshold level and the MSE reaches minimum for c value equals to about 1...
  4. pmc Biological impact of geometric uncertainties: what margin is needed for intra-hepatic tumors?
    Hsiang Chi Kuo
    Department of Radiation Oncology, Montefiore Medical Center, USA
    Radiat Oncol 5:48. 2010
    ..To evaluate and compare the biological impact on different proposed margin recipes for the same geometric uncertainties for intra-hepatic tumors with different tumor cell types or clinical stages...
  5. ncbi request reprint A novel image quality index using Moran I statistics
    Tzong Jer Chen
    Department of Nuclear Science, National Tsing Hua University, Taiwan
    Phys Med Biol 48:N131-7. 2003
    ..Preliminary results show that the new quality index outperforms the MSE significantly under various types of image distortions...
  6. pmc Quality degradation in lossy wavelet image compression
    Tzong Jer Chen
    Department of Nuclear Sciences, National Tsing Hua University, Hsinchu 30043, Taiwan
    J Digit Imaging 16:210-5. 2003
    ..The potential for this method is applications for determining the optimal compression ratio (the maximized compression without seriously degrading image quality) of an image for teleradiology...
  7. ncbi request reprint Scatter correction for 3D PET using beam stoppers combined with dual-energy window acquisition: a feasibility study
    Jay Wu
    Department of Nuclear Science, National Tsing Hua University, Taiwan Health Physics Division, Institute of Nuclear Energy Research, Atomic Energy Council, Taiwan
    Phys Med Biol 50:4593-607. 2005
    ..We conclude that the proposed scatter correction method could effectively suppress various kinds of scattered events, including multiple scatter and scatter from outside the field of view...
  8. ncbi request reprint Analysis of organ motion effects on the effective fluences for liver IMRT
    Hsiang Chi Kuo
    Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan
    Phys Med Biol 52:4227-44. 2007
    ..8 cm), the fluence modulations are mild, such that the respiratory motion of each patient did not strongly affect the CTV coverage. The mean dose error is 1.5% for free motion (0.9-1.8 cm) and is around 1% for gated motion (0.5-1 cm)...
  9. ncbi request reprint A statistical method for evaluation quality of medical images: a case study in bit discarding and image compression
    Tzong Jer Chen
    Department of Nuclear Science, National Tsing Hua University, Hsinchu 30043, Taiwan, ROC
    Comput Med Imaging Graph 28:167-75. 2004
    ..The proposed method is useful for complementing the human visual system, to optimize the performance of image compression technique...
  10. pmc Total body irradiation with step translation and dynamic field matching
    Ho Hsing Chen
    Department of Radiation Oncology, Taichung Veterans General Hospital, 1650 Taiwan Boulevard Sect 4, Taichung 40705, Taiwan Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Taiwan
    Biomed Res Int 2013:216034. 2013
    ..The results confirmed that the technique is capable of delivering a uniform dose distribution to the midline of the body in a small treatment room while keeping the lung dose within the tolerance level. ..
  11. doi request reprint Spatial-temporal clustering analysis in functional magnetic resonance imaging
    Shin Lei Peng
    Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsin Chu, Taiwan
    Phys Med Biol 54:7301-14. 2009
    ..The OTCA/MTCA was applied to spatially smoothed data for various contrast-noise ratios and compared to STCA. The SNR improvements of both OCTA/MTCA are obvious but blurring effects are also visible. The STCA does not have this artifact...
  12. doi request reprint Development of an adjustable model breast for mammographic dosimetry assessment in Taiwanese women
    Shang Lung Dong
    Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 101, Section 2, Kuang Fu Rd, Hsinchu 30013, Taiwan, Republic of China
    AJR Am J Roentgenol 196:W476-81. 2011
    ..The currently used model breast for mammographic dosimetry assessment lacks the flexibility to change dimensions. The aim of this study was to develop an adjustable model breast for mammographic dosimetry assessment of Taiwanese women...