Program Information

Low Dose CT: Where Do We Stand Now?

G Chen

J Stayman

C McCollough

P Pickhardt

G Chen¹*, J Stayman²*, C McCollough³*, P Pickhardt⁴*, (1) University of Wisconsin-Madison, Madison, WI, (2) Johns Hopkins University, Baltimore, MD, (3) Mayo Clinic, Rochester, MN, (4) University of Wisconsin, Madison, WI

Presentations

1:45 PM : Low dose CT Technologies: Software Strategies - G Chen, Presenting Author
2:15 PM : Low dose CT Technologies: Hardware Strategies - J Stayman, Presenting Author
2:45 PM : Implementation of low dose CT strategies: How low is too low - C McCollough, Presenting Author
3:15 PM : Low-Dose CT: Clinical Studies & the Radiologist Perspective - P Pickhardt, Presenting Author

WE-F-601-0 (Wednesday, August 2, 2017) 1:45 PM - 3:45 PM Room: 601

Radiation dose reduction has been an active area in CT imaging for the past 10 years, with extensive efforts from academia, clinical practice, industry, and regulatory and funding agencies. Advances in hardware technology, software algorithms, and protocol optimization have continuously driven the radiation dose used in CT exams to a lower level. However, challenges exist in implementing dose reduction techniques in clinical practice to reduce radiation dose as low as possible, without sacrificing diagnostic outcomes. This symposium aims to provide an update on the state-of-the-art knowledge on radiation dose reduction techniques, new challenges and opportunities we are facing, and future directions in low dose CT that we as a community can work together on to improve patient care. Four invited speakers with extensive experience in dose reduction in research and clinical practice will lead the discussions in this symposium.

Dr. J. Webster Stayman from Johns Hopkins University will present hardware advances, including changes to the tube, detector, and collimator, and other emerging techniques to reduce radiation dose in CT exams.

Dr. Guang-Hong Chen from the University of Wisconsin-Madison will then present advances in software algorithms and image reconstruction techniques to reduce image noise and radiation dose.

Dr. Cynthia McCollough from Mayo Clinic will be presenting on the impact of specific technologies in dose reduction, and strategies for implementing dose reduction techniques in clinical practice without taking dose reduction too far.

Dr. Perry J. Pickhardt from the University of Wisconsin will summarize clinical studies on low dose CT that have been conducted by different groups, and share his perspective as a radiologist on low dose CT.

Learning Objectives:
1. To understand the impact of each component in CT scanning and reconstruction on radiation dose and image quality
2. To learn various dose reduction techniques, including system and hardware, image reconstruction algorithms and processing techniques, and protocol optimization
3. To learn strategies of implementing dose reduction techniques in clinical practice and avoid pitfalls where radiation dose is reduced too much and may sacrifice diagnostic quality



Funding Support, Disclosures, and Conflict of Interest: Guang-Hong Chen Research support: NIH, DOD, GE and Siemens Cynthia McCollough Research support NIH (U01EB017185, R01EB017095) and Siemens Healthcare Perry Pickhardt: Research support NIH 1R01 CA169331-01 Co-founder: VirtuoCTC Shareholder: Elucent, SHINE, Cellectar Advisor: Check-Cap Web Stayman NIH U01EB014964, R21EB014964, KL2TR001077, R01CA112163, R01EB017226 Partnerships with Elekta, Carestream, Philips, Siemens, Varian

Handouts

• 127-35389-418554-125540-1421816470.pdf (G Chen)

• 127-35390-418554-126994-561993805.pdf (J Stayman)

• 127-35391-418554-126640.pdf (C McCollough)

• 127-35392-418554-127446-1973946429.pdf (P Pickhardt)

Contact Email: