کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8242888 | 1533157 | 2007 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Uncertainty Estimation in Intensity-Modulated Radiotherapy Absolute Dosimetry Verification
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
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چکیده انگلیسی
Conclusion: The increase of the reference dose relative standard uncertainty measured with ICs introduced by nonreference conditions when verifying an entire IMRT plan is about 1-1.5%, provided that appropriate small-volume chambers are used. The overall standard uncertainty of the measured IMRT dose amounts to about 2.3%, including the 0.5% of reproducibility and 1.5% of uncertainty associated with the beam calibration factor. Solid state detectors and large-volume chambers are not well suited to IMRT verification dosimetry because of the greater uncertainties. An action level of 5% is appropriate for IMRT verification. Greater discrepancies should lead to a review of the dosimetric procedure, including visual inspection of treatment segments and energy fluence.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Radiation Oncology*Biology*Physics - Volume 68, Issue 1, 1 May 2007, Pages 301-310
Journal: International Journal of Radiation Oncology*Biology*Physics - Volume 68, Issue 1, 1 May 2007, Pages 301-310
نویسندگان
Francisco Ph.D., Günther H. Ph.D., Javier M.Sc., Roberto Ph.D., Marta M.Sc., Bernhard Ph.D., Antonio Ph.D., Juan Ignacio M.Sc.,