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Mistreatment IMRT H&N (2005)
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Monitor units from IMRT MLC field were used for the open field
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Patient was treated with incorrect plan for 3 fractions
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The console screen would have indicated that MLC was not being used
during treatment.
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After 3 fractions, QA was run for the new treatment plan. Operator
noticed lack of MLC shapes and modulation
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Double Trouble
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Open fields instead of conformal fields
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MUs of IMRT
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Patient received 13 Gy per fraction