| Retail: $5 Approved for .25 Category A Credits
The Mayo Clinic proton beam facility created a range-shifting helmet made of polycarbonate-ISO plastic using a Stratasys Fortus 400MC 3-D printer. Using the range-shifting helmet with fixed-beam proton therapy eliminates the lateral penumbra and reduces spot size for tumors smaller than 4 cm, enabling therapists to treat patients with shallow tumors in the head and neck area, and allowing for greater sparing of healthy tissue and better dosimetric coverage of tumor sites. This article discusses the benefits and drawbacks of using the range-shifting helmet with fixed-beam proton therapy.
This quiz is the companion to the column “Range-Shifting Helmet for Proton Radiation Therapy,” which appears in the Fall 2019 Radiation Therapist journal.
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Online version of Radiation Therapist