Now showing items 130-132 of 132

    • Varying Collimation for Dark-Field Extraction 

      Wang, Ge; Cong, Wenxiang; Shen, Haiou; Zou, Yu (Hindawi, 2010-02-16)
      Although x-ray imaging is widely used in biomedical applications, biological soft tissues have small density changes, leading to low contrast resolution for attenuation-based x-ray imaging. Over the past years, x-ray ...
    • Whole Brain Radiation-Induced Impairments in Learning and Memory Are Time-Sensitive and Reversible by Systemic Hypoxia 

      Warrington, Junie P.; Csiszar, Anna; Mitschelen, Matthew; Lee, Yong Woo; Sonntag, William E. (PLOS, 2012-01-18)
      Whole brain radiation therapy (WBRT) is commonly used for treatment of primary and metastatic brain tumors; however, cognitive impairment occurs in 40–50% of brain tumor survivors. The etiology of the cognitive impairment ...
    • X-Ray Phase-Contrast Imaging with Three 2D Gratings 

      Jiang, Ming; Wyatt, Christopher Lee; Wang, Ge (Hindawi, 2008-03-24)
      X-ray imaging is of paramount importance for clinical and preclinical imaging but it is fundamentally restricted by the attenuation-based contrast mechanism, which has remained essentially the same since Roentgen's discovery ...