1. Technical Innovations and Patient Support in Radiation Oncology
Reduction of intra-fraction prostate motion – Determining optimal bladder volume and filling for prostate radiotherapy using daily 4D TPUS and CBCT 
Eric Pei Ping Pang, Kellie Knight, Ashik Hussain, Qiao Fan, Marilyn Baird, Sheena Xue Fei Tan, Wing-Ho Mui, Ronnie Wing-Kin Leung, Irene Kai Ling Seah, Zubin Master, Jeffrey Kit Loong Tuan 
Technical Innovations and Patient Support in Radiation Oncology  
Volume 5, Pages 9-15 (March 2018)
DOI: /j.tipsro
Copyright © 2018 The Authors Terms and Conditions

2. Fig. 1
Convergence of lines (Sup/Inf and Ant/Post) illustrates the tendency of intra-fraction shifts towards zero in the group with bladder volume above 200 cm3.
Technical Innovations and Patient Support in Radiation Oncology  2018 5, 9-15DOI: ( /j.tipsro )
Copyright © 2018 The Authors Terms and Conditions

3. Fig. 2
Convergence of lines (Sup/Inf and Ant/Post) illustrates the reduction of intra-fraction shifts towards zero when daily bladder volume falls within the range of 82–113%.
Technical Innovations and Patient Support in Radiation Oncology  2018 5, 9-15DOI: ( /j.tipsro )
Copyright © 2018 The Authors Terms and Conditions