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Figure 2 Cumulative dose-volume histogram of three segments from one patient receiving a radioactive stent. The ordinate represents the percentage of target volume receiving at least the respective dose shown at the abscissa. The value of DV10 is marked by a circle and that of DV90 by a diamond. Note the different decline of the curves in each segment resulting in a broad variety of delivered doses, especially of the dose of radiation delivered to at least 10% of the adventitial volume, and a high cumulative dose in the central segments.
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