Now showing items 10-22 of 22

    • Gel'fand-Graev's Reconstruction Formula in the 3D Real Space - a Framework towards a General Interior Tomography Theory 

      Ye, Yangbo; Yu, Hengyong; Wang, Ge (2010-05-31)
      In [1-4], I. M. Gel'fand and M. I. Graev proposed inversion formulas for x-ray transforms in different spaces. In particular, Gel’fand-Graev’s inversion formula [1] is a fundamental relationship linking projection data to ...
    • How to Define the Next Generation Cardiac CT Architecture? - a Contemporary Challenge for Interdisciplinary Collaboration 

      Yu, Hengyong; DeMan, Bruno; Carr, Jeff; Frontera, Mark; Zeng, Kai; Bennett, James; Fitzgerald, Paul; Iatrou, Maria; Shen, Haiou; Santago, Peter; Wang, Ge (2010-05-21)
      Cardiovascular diseases are pervasive with high mortality and morbidity at tremendous social and healthcare costs. There are urgent needs for significantly higher fidelity cardiac CT with substantially lower radiation dose, ...
    • Image Warping - Unravel Unevenness into Uniformity 

      Wang, Ge (2008-06-21)
      Demonstrations of anatomical systems computationally extracted from spiral CT images and then unraveled onto a plane in vivo to ultimately conceive 3D individualized models.
    • Interior Tomography - Depict with Direct Data 

      Wang, Ge (2008-06-14)
      While the conventional wisdom states that the interior problem - to reconstruct a region of interest (ROI) only from projection data through the ROI - does not have a unique solution, in June 2007 we published the first ...
    • Phase Approximation Model - Approximation Amazingly Accurate 

      Wang, Ge (2008-06-20)
      The radiative transfer equation (RTE) well describes the photon propagation but its high computational cost is prohibitive for tomographic imaging. The diffusion approximation (DA) to RTE is the most popular but it only ...
    • Results in the Past 

      Wang, Ge (2010-02-04)
      Past research results include the following: • Modern CT scanners that use spiral-beam scanning and perform >100-million scans annually in the USA • Construction of the only 500nm resolution micro-CT system on the East ...
    • SBES Advanced Multi-scale CT Facility at Virginia Tech - From Multi-scale to Multi-energy and Multi-Parameter Imaging Capabilities 

      Wang, Ge; Wyatt, Chris L.; Yu, Hengyong; Sharma, Kriti S.; Prater, Renee; Xiao, Shuhai; Markert, Chad; Saul, Justin; Fox, Edward A.; Lee, Seung W.; Feser, Michael; Lau, S. H.; Yun, Wenbing; Wang, Steve (2010-04-05)
      While clinical CT scanners are available at our medical school, for preclinical imaging we have a Scanco micro-CT scanner, an Xradia micro-CT scanner and an Xradia nano-CT scanner. With all these scanners, we can cover ...
    • Spiral Cone-beam CT - Successes with Spiral Scans 

      Wang, Ge (2008-06-12)
      X-ray computed tomography (CT) is instrumental in medicine, industry and homeland security, which depicts internal structures of an object from its shadows projected in a fan-beam or cone-beam from an x-ray source along a ...
    • Spiral CT of the Temporal Bone 

      Wang, Ge; Skinner, Margaret W.; Vannier, Michael W. (2010-11-01)
      Maximum image resolution with commercial spiral CT scanners is inadequate to define clearly the anatomical features and electrode positions within this intricate, 3D space. The objective of this research was to develop ...
    • Student Symposium: 16th Annual School of Biomedical Engineering & Sciences Graduate Student Research Symposium 

      Unknown author (Virginia Tech, 2017-05-10)

      The Virginia Tech - Wake Forest University Biomedical Engineering Society (BMES) Student Chapter hosts an annual Graduate Student Research Symposium to provide students with the opportunity to interact and exchange ...

    • TIM-OS: A General Monte Carlo Optical Simulator for Biomedical Optics 

      Shen, Haiou; Wang, Ge (2015-11-15)
      A high-performance public-domain Monte Carlo optical simulator is highly desirable to solve complex heterogeneous optical problems in biomedical engineering. Recently, we developed a Tetrahedron-based Inhomogeneous Monte- ...
    • Work at the Present 

      Wang, Ge (2010-02-04)
      Cardiovascular diseases are pervasive at tremendous social and healthcare costs. There are urgent needs for higher fidelity cardiac CT with lower radiation dose. Based on the academic-industrial partnership between Virginia ...
    • X-ray Grating-based Imaging - Waves Work Wonderfully 

      Wang, Ge (2008-06-17)
      Current x-ray imaging is of critical for clinical and pre-clinical applications but it is fundamentally restricted by the attenuation mechanism. X-ray grating-based imaging represents outstanding opportunities and major ...