Program Information

Clinical IGRT: In-Room Imaging Technologies and Image Processing for Patient Alignment

Y Rong¹, J Chang², J Sillanpaa³*, (1) University of California-Davis, Sacramento, CA, (2) Northwell Health, Lake Success, NY, (3) Memorial Sloan-Kettering Cancer Center, Middletown, NJ

Presentations

1:00 PM : An overview of in-room IGRT technologies - Y Rong, Presenting Author
1:20 PM : Essential image processing techniques for IGRT - J Chang, Presenting Author
1:40 PM : Common image filters and artifact reduction techniques - J Sillanpaa, Presenting Author

TH-E-205-0 (Thursday, August 3, 2017) 1:00 PM - 2:00 PM Room: 205

Image-guided radiotherapy (IGRT) is the major setup/monitoring technique for high-accuracy radiotherapy procedures and many IGRT systems have been developed to satisfy the special needs of different treatment sites and fractionation schedules. Since modern IGRT systems employ various combinations of image formation methods and image processing algorithms, it is extremely challenging for the medical physicist to understand each individual imaging system.

In fact, most IGRT techniques can be categorized into three major image formation technologies, with the use of x-ray, optical signals, and electromagnetic waves. In addition, the techniques for image post-acquisition processing are very similar for achieving similar end-point, i.e., extracting necessary anatomic information for patient setup and monitoring. It is therefore beneficial for a physicist to get familiar with these common underline working principles before taking on an individual system. With a clear understanding of the image formation and post-processing techniques, physicists may be better and more efficient in troubleshooting when problems or unexpected results occur. Moreover, clinical benefits of an IGRT system can be maximized only when the physicist has in-depth knowledge in the fundamental characteristics of the system itself.

In this symposium, we will focus on the image formation and post-processing techniques commonly used in modern IGRT technologies. Topics will include: (a) an overview of in-room IGRT technologies; (b) essential image processing techniques for IGRT; and (c) clinical consideration.

Learning Objectives:
1. Be familiar with various image formation technologies and image processing techniques commonly used by modern IGRT systems.
2. Be able to apply the gained knowledge to improve quality of daily clinical usage of IGRT systems.
3. Develop confidence in managing, trouble-shooting, and quality assurance of various clinical IGRT systems.

Handouts

127-35403-418554-127589-378931222.pdf (Y Rong)

127-35404-418554-126140-1669407366.pdf (J Chang)

127-35405-418554-127590-1353350599.pdf (J Sillanpaa)

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