February 14 Feb 14
12:00 PM - 01:00 PM
Tuesday Tue


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Stanford University School of Medicine

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Stanford, CA 94305
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Medical Physics Seminar - Daniel Low

Replacing 4DCT: It's About Time

12:00pm – 1:00pm Seminar & Discussion

Zoom Webinar

Webinar Registration:

Check your email for the Zoom webinar link after you have registered


Sponsored by the Radiation Oncology, Division of Medical Physics


Daniel Low, PhD, Professor of Radiation Oncology at the University of California Los Angeles 

Dr. Low is the Vice Chair of Medical Physics in the Department of Radiation Oncology at University of California at Los Angeles.

Dr. Low earned his Ph.D. in Experimental Nuclear Physics in 1988 and joined M.D. Anderson Cancer Center as a postdoctoral fellow. In 1990, he joined Washington University (then the Mallinckrodt Institute of Radiology) as an instructor and by the time he left in 2010, he was a professor and the director of Medical Physics. He joined UCLA as the Vice Chair of Medical Physics where he works today. Dr. Low has published almost 300 peer-reviewed manuscripts and his current research interests include MR-guided Radiation Therapy and the modeling of human breathing motion. He is a fellow of both the AAPM and ASTRO.


We have developed a replacement for 4DCT that uses standard CT scanners, provides sorting-artifact-free images, quantitative accuracy feedback, and allows the user to simulate the breathing motion from the CT simulation session. Our process is termed model-based CT, where we use a mathematical equation to describe breathing motion and the parameters of the equation are patient-specific and determined using free-breathing CT scans. The process is currently in clinical use at UCLA and we plan on commercializing it soon.

Video of the this presentation is provided below.