Yi Zhang, Presenter: Nothing to Disclose

Ted Lynch PhD, Abstract Co-Author: Nothing to Disclose

Scott Stekel, Abstract Co-Author: Nothing to Disclose

Donald Joseph Tradup, Abstract Co-Author: Nothing to Disclose

Nicholas James Hangiandreou PhD, Abstract Co-Author: Nothing to Disclose

To provide an overview of available tools and methods for evaluating Doppler US system performance.  To explain the distinct characteristics of flow phantom and string phantom, and demonstrate how phantom properties can influence their abilities of performing certain physics tests.  To illustrate how flow and string phantoms can be used to evaluate Doppler US system performance, particularly in the analysis of errors and variations in Doppler peak velocity measurements and volume flow rate measurements. A custom algorithm was developed to objectively estimate peak velocity values from both phantoms.   

Brief Introduction of Clinical Doppler US Modes Doppler US System Physics Tests Overview  Survey of Commercially Available Testing Phantoms Flow phantom and its basic characteristics String phantom and its basic characteristics Comparison of String and Flow phantoms for Doppler US System Evaluation Advantages and disadvantages of using both phantoms for each physics tests  Both phantoms give comparable results in analyzing variations in clinical Doppler US peak velocity measurement Other Important Considerations for Phantom Selection Potential Phantom Design Improvement  

http://abstract.rsna.org/uploads/2014/14004057/14004057_yild.pdf

Zhang, Y, Lynch, T, Stekel, S, Tradup, D, Hangiandreou, N, Flow and String Phantoms for Clinical Medical Physics Evaluation of Doppler Ultrasound System Performance.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14004057.html