PMC3570436_01
PMC3570436_02
Diminished radiation dermatitis. Patient 1 demonstrated substantially decreased erythema in the area of the skin beneath the markers.
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F1
He developed typical asymptomatic erythema on his hips bilaterally; however, the erythema was substantially attenuated in the area of skin beneath the markers (Figure 1).
PMC3570436_03
Dose response effect. Patient 2 demonstrated more erythema in the skin that was covered for only 3 weeks (Left Image) compared to the skin covered for 6 weeks (Right Image), suggesting a dose response effect.
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F2
Moreover, the area of skin on the side that was covered for only 3 out of the 6 weeks showed a less noticeable decrease in erythema compared to the surrounding uncovered skin than the area that was covered for 6 weeks (Figure 2).
The double scattered SOBP demonstrated no apparent dose variation with and without the transparent marker in the beam.
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F3
The results of the phantom dosimetric study are shown in Figure 3.