Recent Submissions

  • 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 ...
  • 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 ...
  • Bolus-chasing CT Angiography - Catch the Contrast via Control 

    Wang, Ge (2008-06-16)
    Intravenous injection of contrast media is required to enhance conspicuity of the vasculature, organs and tumors in CT angiography (CTA) for diagnosis of cardiovascular structures, peripheral vessels and solid organs. The ...
  • Fast CT Reconstruction - Practical Performance via Parallelization 

    Wang, Ge (2008-06-12)
    Parallel computing has been used to solve large-scale problems in many fields. While CT is being developed towards high-resolution, volumetric, dynamic and spectral imaging, datasets become increasingly large, and ...
  • 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.
  • Bioluminescence Tomography - Inner-light, Insight from Infrared 

    Wang, Ge (2008-06-12)
    Bioluminescence tomography (BLT) is a molecular imaging modality, which derives a bioluminescent source distribution inside a small animal from external bioluminescent signals. We published the first paper on BLT in 2004 ...
  • 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- ...
  • Axiomatic Imaging Theory - Formulate with Fairness & Fun 

    Wang, Ge (2008-06-17)
    There are many imaging systems. Their performance characterization is important for all applications. Various definitions are introduced for quantification of image resolution, which is the ability of an imaging system 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, ...
  • 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 ...
  • 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 ...
  • Development and Applications of Interior Tomography - Multi-source Interior Tomography for Ultrafast Performance 

    Wang, Ge; Ritman, Erik; Ye, Yangbo; Katsevich, Alexander; Yu, Hengyong; Cao, Guohua; Zhou, Otto (2010-04-05)
    Conventional tomography allows excellent reconstruction of an object from non-truncated projections. The long-standing interior problem is to reconstruct an interior ROI accurately only from local projection segments. ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • Fluorescence Tomography - Monitor Malignancy in Mice 

    Cui, Zheng; Wang, Ge (2008-06-12)
    Dr. Cui's group at Wake Forest has been investigating a newly discovered innate anticancer immunity in a colony of cancer resistant mice, and already demonstrated that the anticancer activity in the mice stems from the ...