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David Zamora - SMS Research

David Zamora
David.Zamora@mdanderson.org

BS, 2004, Mechanical Engineering, University of Texas-Austin
2005-2008, Physics Technologist, UT MD Anderson Cancer Center 


Project:  4-Dimensional Computed Tomorgraphy (4D-CT)

In 4D-CT, one attempts to minimize the spatial uncertainty of moving lung tumors by correlating a collection of CT images to an external respiratory signal.  Different methods exist to select exactly which CT images correspond to different phases of the measured breath cycle.  These methods include phase-binning, PhaseCorrected phase-binning, and amplitude-binning.  Our research focuses on identifying which method most consistently captures the largest tumor motion extent in patient examinations.  In doing so, we are creating maximum intensity projection (MIP) images from each 4D-CT data set and then are comparing each to a MIP generated from the entire cine CT data set.  In this process, we are identifying the root cause of why each method may excel or be deficient when defining a gross tumor volume (GTV) for radiation therapy treatment.

Advisor: Tinsu Pan, PhD 
Career Goal:  Clinical practice


© 2012 The University of Texas MD Anderson Cancer Center