Patient Case Study: Comparing 3D Printed Bolus to Sheet Bolus for Post-Mastectomy Chest Wall Radiation Therapy

Nova Scotia Health

This patient case study evaluates the usage of a 3D printed bolus compared to a standard sheet bolus for chest wall radiation therapy based on the accuracy of fit, surface dose measured in vivo, and the efficiency of patient setup. The results demonstrate that the 3D printed bolus in post-mastectomy radiation therapy provides a better bolus fit and reduces patient setup time compared with sheet bolus. More details can be found in the published article listed below.1

¹Robar, et al (2017). Intrapatient study comparing 3D printed bolus versus standard vinyl gel sheet bolus for postmastectomy chest wall radiation therapy. Practical Radiation Oncology, 8(4), 221–229.

“The accuracy of fit of the bolus to the chest wall was improved significantly relative to standard sheet bolus, with the frequency of air gaps 5 mm or greater reduced from 30% to 13% (P < .001) and maximum air gap dimension diminished from 0.5 ± 0.3 to 0.3 ± 0.3 mm on average.”

Dr. James Robar

Chief of Medical Physics

Nova Scotia Health