Ioannis Sechopoulos

Summary

Affiliation: Emory University
Country: USA

Publications

  1. doi request reprint Mammography and the risk of thyroid cancer
    Ioannis Sechopoulos
    Department of Radiology and Imaging Sciences, Winship Cancer Institute, Emory University, 1701 Uppergate Dr NE, Ste 5018, Atlanta, GA 30322, USA
    AJR Am J Roentgenol 198:705-7. 2012
  2. pmc Characterization of the homogeneous tissue mixture approximation in breast imaging dosimetry
    Ioannis Sechopoulos
    Department of Radiology and Imaging Sciences and Winship Cancer Institute, Emory University School of Medicine, 1701 Upper Gate Drive Northeast, Suite 5018, Atlanta, Georgia 30322, USA
    Med Phys 39:5050-9. 2012
  3. pmc X-ray scatter correction method for dedicated breast computed tomography
    Ioannis Sechopoulos
    Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA
    Med Phys 39:2896-903. 2012
  4. ncbi request reprint Optimization of the acquisition geometry in digital tomosynthesis of the breast
    Ioannis Sechopoulos
    Department of Radiology and Winship Cancer Institute, Emory University School of Medicine, 1701 Upper Gate Drive, Suite 5018, Atlanta, Georgia 30322, USA
    Med Phys 36:1199-207. 2009
  5. ncbi request reprint Glandular radiation dose in tomosynthesis of the breast using tungsten targets
    Ioannis Sechopoulos
    Department of Radiology and Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia 30322, USA
    J Appl Clin Med Phys 9:2887. 2008
  6. pmc Dosimetric characterization of a dedicated breast computed tomography clinical prototype
    Ioannis Sechopoulos
    Department of Radiology, Emory University School of Medicine, Atlanta, Georgia 30322, USA
    Med Phys 37:4110-20. 2010
  7. ncbi request reprint Computation of the glandular radiation dose in digital tomosynthesis of the breast
    Ioannis Sechopoulos
    Emory University School of Medicine, Department of Radiology and Winship Cancer Institute, 1701 Uppergate Drive, Suite 5018, Atlanta, Georgia 30322, USA
    Med Phys 34:221-32. 2007
  8. ncbi request reprint Scatter radiation in digital tomosynthesis of the breast
    Ioannis Sechopoulos
    Department of Radiology and Winship Cancer Institute, Emory University School of Medicine, 1701 Uppergate Drive, Suite 5018, Atlanta, Georgia 30322, USA
    Med Phys 34:564-76. 2007
  9. doi request reprint Multifunctional nanocarriers for mammographic quantification of tumor dosing and prognosis of breast cancer therapy
    Efstathios Karathanasis
    Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA
    Biomaterials 29:4815-22. 2008
  10. pmc Radiation dose to organs and tissues from mammography: Monte Carlo and phantom study
    Ioannis Sechopoulos
    Department of Radiology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA, USA
    Radiology 246:434-43. 2008

Collaborators

Detail Information

Publications24

  1. doi request reprint Mammography and the risk of thyroid cancer
    Ioannis Sechopoulos
    Department of Radiology and Imaging Sciences, Winship Cancer Institute, Emory University, 1701 Uppergate Dr NE, Ste 5018, Atlanta, GA 30322, USA
    AJR Am J Roentgenol 198:705-7. 2012
    ..Those reports have caused many requests that a thyroid shield be used during mammography...
  2. pmc Characterization of the homogeneous tissue mixture approximation in breast imaging dosimetry
    Ioannis Sechopoulos
    Department of Radiology and Imaging Sciences and Winship Cancer Institute, Emory University School of Medicine, 1701 Upper Gate Drive Northeast, Suite 5018, Atlanta, Georgia 30322, USA
    Med Phys 39:5050-9. 2012
    ..To compare the estimate of normalized glandular dose in mammography and breast CT imaging obtained using the actual glandular tissue distribution in the breast to that obtained using the homogeneous tissue mixture approximation...
  3. pmc X-ray scatter correction method for dedicated breast computed tomography
    Ioannis Sechopoulos
    Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA
    Med Phys 39:2896-903. 2012
    ..To improve image quality and accuracy in dedicated breast computed tomography (BCT) by removing the x-ray scatter signal included in the BCT projections...
  4. ncbi request reprint Optimization of the acquisition geometry in digital tomosynthesis of the breast
    Ioannis Sechopoulos
    Department of Radiology and Winship Cancer Institute, Emory University School of Medicine, 1701 Upper Gate Drive, Suite 5018, Atlanta, Georgia 30322, USA
    Med Phys 36:1199-207. 2009
    ....
  5. ncbi request reprint Glandular radiation dose in tomosynthesis of the breast using tungsten targets
    Ioannis Sechopoulos
    Department of Radiology and Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia 30322, USA
    J Appl Clin Med Phys 9:2887. 2008
    ..The surface fit equations and the fit coefficients for RGD(alpha) included in the previous study were also found to be appropriate for the tungsten spectra...
  6. pmc Dosimetric characterization of a dedicated breast computed tomography clinical prototype
    Ioannis Sechopoulos
    Department of Radiology, Emory University School of Medicine, Atlanta, Georgia 30322, USA
    Med Phys 37:4110-20. 2010
    ..To investigate the glandular dose magnitudes and characteristics resulting from image acquisition using a dedicated breast computed tomography (BCT) clinical prototype imaging system...
  7. ncbi request reprint Computation of the glandular radiation dose in digital tomosynthesis of the breast
    Ioannis Sechopoulos
    Emory University School of Medicine, Department of Radiology and Winship Cancer Institute, 1701 Uppergate Drive, Suite 5018, Atlanta, Georgia 30322, USA
    Med Phys 34:221-32. 2007
    ..91 to 1.01. The RGD results were fit to mathematical functions and the resulting equations are provided...
  8. ncbi request reprint Scatter radiation in digital tomosynthesis of the breast
    Ioannis Sechopoulos
    Department of Radiology and Winship Cancer Institute, Emory University School of Medicine, 1701 Uppergate Drive, Suite 5018, Atlanta, Georgia 30322, USA
    Med Phys 34:564-76. 2007
    ..The presence of the breast support plate and the detector cover plate in the simulations introduced important effects on the SPR, which are also relevant to the scatter content in planar mammography...
  9. doi request reprint Multifunctional nanocarriers for mammographic quantification of tumor dosing and prognosis of breast cancer therapy
    Efstathios Karathanasis
    Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA
    Biomaterials 29:4815-22. 2008
    ..Notably, specific tumors that exhibited high uptake of the nanocarrier as visualized by imaging were precisely the animals that responded best to the treatment as quantified by low tumor growth and prolonged survival...
  10. pmc Radiation dose to organs and tissues from mammography: Monte Carlo and phantom study
    Ioannis Sechopoulos
    Department of Radiology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA, USA
    Radiology 246:434-43. 2008
    ..To prospectively determine the radiation dose to the organs of the body during standard bilateral two-view mammography by using Monte Carlo simulations and a phantom...
  11. pmc Monte Carlo and phantom study of the radiation dose to the body from dedicated CT of the breast
    Ioannis Sechopoulos
    Department of Radiology and Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA, USA
    Radiology 247:98-105. 2008
    ..To prospectively determine the radiation dose absorbed by the organs and tissues of the body during a dedicated breast computed tomography (CT) study by using Monte Carlo methods and a phantom...
  12. doi request reprint Imaging nanoprobe for prediction of outcome of nanoparticle chemotherapy by using mammography
    Efstathios Karathanasis
    Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology Emory University, Atlanta, GA 30332, USA
    Radiology 250:398-406. 2009
    ..To prospectively predict the effectiveness of a clinically used nanochemotherapeutic agent by detecting and measuring the intratumoral uptake of an x-ray contrast agent nanoprobe by using digital mammography...
  13. pmc Detection of simulated microcalcifications in a phantom with digital mammography: effect of pixel size
    Sankararaman Suryanarayanan
    Winship Cancer Institute and Department of Radiology, Emory University School of Medicine, 1701 Uppergate Dr, Bldg C, Suite 5018, Atlanta, GA 30322, USA
    Radiology 244:130-7. 2007
    ..To evaluate the effect of pixel size on the detection of simulated microcalcifications in a phantom with digital mammography...
  14. pmc Clinical digital breast tomosynthesis system: dosimetric characterization
    Steve Si Jia Feng
    Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA
    Radiology 263:35-42. 2012
    ..To comprehensively characterize the dosimetric properties of a clinical digital breast tomosynthesis (DBT) system for the acquisition of mammographic and tomosynthesis images...
  15. pmc Power spectrum analysis of the x-ray scatter signal in mammography and breast tomosynthesis projections
    Ioannis Sechopoulos
    Departments of Radiology and Imaging Sciences, Hematology and Medical Oncology and Winship Cancer Institute, Emory University, 1701 Upper Gate Drive NE, Suite 5018, Atlanta, Georgia 30322
    Med Phys 40:101905. 2013
    ..To analyze the frequency domain characteristics of the signal in mammography images and breast tomosynthesis projections with patient tissue texture due to detected scattered x-rays...
  16. doi request reprint Stereoscopic digital mammography: improved specificity and reduced rate of recall in a prospective clinical trial
    CARL J D'ORSI
    Department of Radiology and Imaging Sciences, Emory University School of Medicine, 1701 Upper Gate Dr NE, Suite C1104, Atlanta, GA 30322, USA
    Radiology 266:81-8. 2013
    ..To compare stereoscopic digital mammography (DM) with standard DM for the rate of patient recall and the detection of cancer in a screening population at elevated risk for breast cancer...
  17. pmc A software-based x-ray scatter correction method for breast tomosynthesis
    Steve Si Jia Feng
    Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30322, USA
    Med Phys 38:6643-53. 2011
    ..To develop a software-based scatter correction method for digital breast tomosynthesis (DBT) imaging and investigate its impact on the image quality of tomosynthesis reconstructions of both phantoms and patients...
  18. ncbi request reprint Theoretical analysis of high-resolution digital mammography
    Sankararaman Suryanarayanan
    Emory University School of Medicine, Department of Radiology and Winship Cancer Institute, Atlanta, GA 30322, USA
    Phys Med Biol 51:3041-55. 2006
    ..The results of this study strongly suggest the feasibility of large area scintillator-based digital mammography imagers with pixel sizes below 100 microm...
  19. pmc X-ray scatter correction in breast tomosynthesis with a precomputed scatter map library
    Steve Si Jia Feng
    Department of Biomedical Engineering, Georgia Institute of Technology and Emory University and Department of Radiology and Imaging Sciences, Emory University, 1701 Uppergate Drive Northeast, Suite 5018, Atlanta, Georgia 30322
    Med Phys 41:031912. 2014
    ..To develop and evaluate the impact on lesion conspicuity of a software-based x-ray scatter correction algorithm for digital breast tomosynthesis (DBT) imaging into which a precomputed library of x-ray scatter maps is incorporated...
  20. pmc Objective models of compressed breast shapes undergoing mammography
    Steve Si Jia Feng
    Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30322, USA
    Med Phys 40:031902. 2013
    ..To develop models of compressed breasts undergoing mammography based on objective analysis, that are capable of accurately representing breast shapes in acquired clinical images and generating new, clinically realistic shapes...
  21. pmc A review of breast tomosynthesis. Part I. The image acquisition process
    Ioannis Sechopoulos
    Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA
    Med Phys 40:014301. 2013
    ..The companion to this paper will review all other aspects of breast tomosynthesis imaging, including the reconstruction process...
  22. pmc A review of breast tomosynthesis. Part II. Image reconstruction, processing and analysis, and advanced applications
    Ioannis Sechopoulos
    Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA
    Med Phys 40:014302. 2013
    ..This second part will review the research on the post-acquisition aspects, including reconstruction, image processing, and analysis, as well as the advanced applications being investigated for breast tomosynthesis...
  23. pmc Cupping artifact correction and automated classification for high-resolution dedicated breast CT images
    Xiaofeng Yang
    Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA 30329, USA
    Med Phys 39:6397-406. 2012
    ..To develop and test an automated algorithm to classify the different tissues present in dedicated breast CT images...
  24. pmc Tumor vascular permeability to a nanoprobe correlates to tumor-specific expression levels of angiogenic markers
    Efstathios Karathanasis
    Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology Emory University, Atlanta, Georgia, USA
    PLoS ONE 4:e5843. 2009
    ..In this study, we demonstrate that non-invasive quantification of the degree of tumor vascular permeability to a nanoprobe correlates with the VEGF and its receptor levels and tumor growth...