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Modulated Electron Bolus

Modulated Electron Bolus
Modulated Electron Bolus

A custom, optimized bolus design that provides modulation of the electron beam to conform the presctiption isodose to the PTV, sparing the underlying normal tissue.

  • Adaptiiv’s MEB automates modulated bolus thickness optimization and fabrication. The software takes a few minutes to determine optimal shape and 3D printing can be done in a matter of hours, producing a bolus with spatial accuracy on the order of 1mm. In one case, MEB design time was reduced from 30+ hours of manual tuning within the TPS to under 2 minutes with Adaptiiv’s MEB module.
  • 3D printed bolus improves the following: integrity of the bolus (compared to wax), reproducibility of patient setup, and the accuracy of treatment delivery through a better, more consistent fit to the patient surface.
  • Adaptiiv’s patented hotspot correction algorithm allows users to determine the appropriate balance of dose homogeneity versus conformity. No other commercial solution provides this capability.
  • Adaptiiv provides the only regulatory cleared solution allowing users to customize a bolus, seamlessly export the modified bolus structure back into their TPS, and use their clinically commissioned TPS to calculate dose.
  • Adaptiiv’s solution replaces the need to use multiple versions of open source software when transforming a structure within the TPS into a 3D printed accessory. Using multiple versions of open source software requires excessive design time, treatment plans can’t be easily verified in the TPS, and they do not have regulatory clearance.
  • MEB plans created in Adaptiiv’s software demonstrate superior sparing of healthy tissues and distal OARs while significantly reducing hotspots compared to photon IMRT delivery, i.e. VMAT.

For additional information, visit

Adaptiiv, formerly 3D Bolus, is ISO 13485 certified, has received a CE mark and is FDA 510k cleared to market 3D Bolus Software in the U.S.

  • Resources
  • Videos
Item Title
Sales Slick Sales Slick
Modulated Electron Bolus
(Webinar) Improved Hotspot Correction Algorithm for MERT
MEB Demonstration

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