Shi-Ing Chang

  • Citations Per Year
Learn More
BACKGROUND & AIMS Portal vein ligation (PVL) is increasingly employed prior to major hepatectomy in order to enhance the volume of the future liver remnant (FLR) and to avoid post-hepatectomy liver failure. The efficacy of PVL on subjects with non-alcohol fatty liver disease (NAFLD) is largely unknown. METHODS Sprague-Dawley rats fed with normal diet(More)
High spatial resolution of multi-pinhole SPECT is often hampered by physical effects including collimator response, and pinhole edge penetration. The collimator response is related to the blurring effect varying with distance from source to the aperture, and caused by the non-ideal aperture diameter. Pinhole edge penetration is referred to penetration of(More)
To improve the convergence rate of the effective maximum a posteriori expectation-maximization (MAP-EM) algorithm in tomographic reconstructions, this study proposes a modified MAP-EM which uses an over-relaxation factor to accelerate image reconstruction. The proposed method, called MAP-AEM, is evaluated and compared with the results for MAP-EM and for an(More)
  • 1