Medical Physics Seminar – Monday, February 4, 2019
Flowing Through Time and Space
Carson Hoffman (student of Dr. Oliver Wieben)
Research Assistant, Department of Medical Physics, UW-School of Medicine & Public Health, Madison, WI - USA
Angiographic imaging modalities have revolutionized the way vascular information can be utilized in the clinical setting. They provide extensive anatomical detail on vasculature, help diagnose vascular disease processes, and even allow prompt interventions such as stenting and embolization. Aside from the vascular anatomy, recent advances also provide information on the flow dynamics within blood vessels including blood flow and velocity. This educational talk aims (1) To discuss dynamics of blood flow and its clinical implications, (2) To review the evolution of angiographic imaging modalities, (3) To illustrate imaging methods that can quantify blood flow, (4) To highlight the use of flow imaging methods with case examples.
CT Number Accuracy at Reduced Dose Levels
Juan Pablo Cruz Bastida (student of Dr. Guang-Hong Chen)
Research Assistant, Department of Medical Physics, UW-School of Medicine & Public Health, Madison, WI - USA
The CT number accuracy plays an important role in clinical diagnosis. When strategies to reduce radiation dose are implemented, it is important to make sure that the CT number bias is controlled within an acceptable range. In this talk, it will be discussed the dependence of CT number bias on radiation dose level and noise-reduction strategies.