1. Collision Risk Mitigation of Varian TrueBeam Linear Accelerator With Supplemental Live-View Cameras 
Steven M. Nguyen, BS, Alisha A. Chlebik, RTT, Arthur J. Olch, PhD, Kenneth K. Wong, MD 
Practical Radiation Oncology 
Volume 9, Issue 1, Pages e103-e109 (January 2019)
DOI: /j.prro
Copyright © 2018 American Society for Radiation Oncology Terms and Conditions

2. Figure 1
Varian TrueBeam system contains collision safety features such as touch guards, capacitive collision detection system (A), and LaserGuard II infrared laser collision system (B).
Practical Radiation Oncology 2019 9, e103-e109DOI: ( /j.prro )
Copyright © 2018 American Society for Radiation Oncology Terms and Conditions

3. Figure 2
(A) AlignRT surface-guided imaging computer, (B) Standard Varian TrueBeam console, (C) View from Panasonic WV-SW175 camera mounted underneath treatment couch, (D) View from Panasonic WV-SC385 network security camera providing left anterior oblique sagittal view, (E) Close-up screenshots of video signal from the left anterior-inferior oblique, sagittal, and undertreatment couch cameras.
Practical Radiation Oncology 2019 9, e103-e109DOI: ( /j.prro )
Copyright © 2018 American Society for Radiation Oncology Terms and Conditions

4. Figure 3
Panasonic WV SC-385 cameras mounted overhead as outlined. Camera mounted near foot of linac couch for left anterior-inferior oblique view (above), and camera mounted for left anterior oblique view (below).
Practical Radiation Oncology 2019 9, e103-e109DOI: ( /j.prro )
Copyright © 2018 American Society for Radiation Oncology Terms and Conditions

5. Figure 4
Panasonic WV-SW175 camera mounted underneath the treatment couch showing clearance from couch mechanisms.
Practical Radiation Oncology 2019 9, e103-e109DOI: ( /j.prro )
Copyright © 2018 American Society for Radiation Oncology Terms and Conditions

6. Figure 5
Schematic of connection between treatment vault cameras and therapist workstation computer.
Practical Radiation Oncology 2019 9, e103-e109DOI: ( /j.prro )
Copyright © 2018 American Society for Radiation Oncology Terms and Conditions

7. Figure 6
Couch- and gantry-angle combinations for which the electronic, portal imaging device remained a blind spot for all cameras in laterally centered, couch-translational configurations for cranial targets (Varian closed-circuit television camera view).
Practical Radiation Oncology 2019 9, e103-e109DOI: ( /j.prro )
Copyright © 2018 American Society for Radiation Oncology Terms and Conditions