### Title: "Task-based Imaging"

**Dr. Mathew Lewis
**

UT Southwestern
For most new imaging modalities, the idea of a general reconstruction
algorithm as found with classical computed tomography (CT) is often
not feasible. There are fundamental mathematical difficulties with
relating the measured data to the parameters of interests. If, however, some
refinement of the imaging task can be performed, then it may be
possible to restore the feasibility of the approach. My research involves the
development of specific imaging methods that address specific
questions of biological relevance. There methods include: detection and
characterization of breast microcalcification morphology,
application of advanced algorithms for the inverse source problem to the task of
measuring tumor volume, and the measurement of elasticity in
anisotropic bone using reflected and transmitted waves. This multi-disciplinary
approach includes methods from physics, applied mathematics, signal
processing, and statistical decision theory.

UT Arlington Physics