Nova Scotia Health: 3D Printed Bolus vs. Standard Vinyl Gel Sheet Bolus

This patient study evaluated the use of 3D printed bolus for chest wall radiation therapy compared with standard sheet bolus with regard to accuracy of fit, surface dose measured in vivo, and efficiency of patient setup. It demonstrates 3D printed bolus in postmastectomy radiation therapy improves fit of the bolus and reduces patient setup time compared with standard vinyl gel sheet bolus.

“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.”

James Robar

Chief of Medical Physics,

Nova Scotia Health