In Pursuit of Individualised Margins for Prostate Cancer Patients Undergoing Image-guided Radiotherapy: The Effect of Body Mass Index on Intrafraction Prostate Motion

Our data indicate that patients with a higher BMI have less intrafraction displacement of the prostate in the superior-inferior dimension compared with patients with a lower BMI. This has implications for individualised treatment margins for future prostate cancer patients undergoing image-guided radiotherapy. Further study is recommended.