RSL Invited Speaker Series

ABSTRACT

“Photon Counting CT: A Review of regulatory-cleared CdTe and prototype Si detection methods”

In the early 2000s, Computed Tomography (CT) experienced a notable period of rapid expansion, marked by an increase in both the number of CT indications and the physical dimensions of CT detectors. This era, commonly referred to as the "slice wars," witnessed a substantial surge in the number of detector channel rows, or slices. Presently, the field of CT is once again undergoing a transformative phase, with some anticipating a comparable impact on the growth of clinical indications and utilization. CT vendors are currently introducing diverse solutions, employing cadmium telluride, cadmium zinc telluride, and silicon-based detectors. This presentation aims to delve into the latest advancements in the realm of CT detectors, with a specific emphasis on the FDA-cleared CdT solution from Siemens Healthineers and the prototype "Deep Silicon" solution from GE Healthcare. Participants in this session are expected to gain a comprehensive historical perspective on the influence of CT detectors on clinical utility. Furthermore, the discussion will provide insights into photon counting methodologies using CdT, CZT, and Si-based detection methods. The presentation will include research findings from the speaker's laboratory, featuring a prototype Si-based system, along with an analysis of peer-reviewed materials pertaining to CdT and CZT systems.

BIO

Dr. Szczykutowicz “Stick” is an Associate Professor of Radiology at the University of Wisconsin. He specializes in all things CT from reconstruction algorithms to technologist workflow. Protocols developed by his team have been shipped to 3,500 sites around the globe. Dr. Szczykutowicz is the author of 60 papers, 2 book chapters, the book “The CT Handbook: Optimizing protocols for today’s feature-rich scanners”, 4 patents, and a consultant to 5 companies. In 2023 he founded RadUnity Corp. which provides solutions for harmonizing medical imaging.

@Prof_TimStick