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Technical note: evaluation of dosimetric performance in a commercial 3D treatment planning system

Department of Radiology, Medical School, Areteion Hospital, University of Athens, 76 Vas. Sophia's Avenue, 11528 Athens, Greece

View larger version (15K): [in a new window]   Figure 1. Histogram of the differences between calculated and measured values for all test cases.

View larger version (15K): [in a new window]   Figure 2. Histogram of the differences between calculated and measured values for the test case of square fields.

View larger version (15K): [in a new window]   Figure 3. Histogram of the differences between calculated and measured values for the test case of rectangular fields.

View larger version (17K): [in a new window]   Figure 4. (a) Deviations of measured from calculated point dose as a function of distance between inhomogeneity and point of measurement (ionization chamber) for field sizes 5 cm x 5 cm, 10 cm x 10 cm, 15 cm x 15 cm and 20 cm x 20 cm. (b) Deviations of measured from calculated point dose as a function of field sizes for the four distances between inhomogeneity and point of measurement (ionization chamber).