Defining the Optimal Time of Adaptive Replanning in Prostate Cancer Patients with Weight Change during Volumetric Arc Radiotherapy: A Dosimetric and Mathematical Analysis Using the Gamma Index
المؤلفون المشاركون
Choi, Hoon Sik
Jo, Guang Sub
Chae, Jong Pyo
Lee, Sang Bong
Kim, Chul Hang
Jeong, Bae Kwon
Jeong, Hojin
Lee, Yun Hee
Ha, In Bong
Kang, Ki Mun
Song, Jin Ho
المصدر
Computational and Mathematical Methods in Medicine
العدد
المجلد 2017، العدد 2017 (31 ديسمبر/كانون الأول 2017)، ص ص. 1-8، 8ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2017-12-18
دولة النشر
مصر
عدد الصفحات
8
التخصصات الرئيسية
الملخص EN
We evaluated the changes in the dose distribution of radiation during volumetric arc radiotherapy (VMAT), to determine the right time for adaptive replanning in prostate cancer patients with progressive weight (WT) changes.
Five prostate cancer patients treated with VMAT were selected for dosimetric analysis.
On the original computed tomography images, nine artificial body contours were created to reflect progressive WT changes.
Combined with three different photon energies (6, 10, and 15-MV), 27 comparable virtual VMAT plans were created per patient.
The dosimetric analysis included evaluation of target coverage (D95%,Dmax), conformity index, homogeneity index, and organs at risk doses.
The dose differences among the plans were determined using the gamma index analysis and were compared with the dosimetric analysis.
Mean D95% became lower than 98% when body contour expanded by 2.0 cm or more and Dmax became higher than 107% when body contour contracted by 1.5 cm or more in 10-MV plans.
This cut-off values correlated well with gamma index analysis results.
Adaptive replanning should, therefore, be considered if the depth of body contour becomes 1.5 cm smaller (WT loss) or 2.0 cm larger (WT gain) in patients treated by VMAT with 10-MV photons.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Choi, Hoon Sik& Jo, Guang Sub& Chae, Jong Pyo& Lee, Sang Bong& Kim, Chul Hang& Jeong, Bae Kwon…[et al.]. 2017. Defining the Optimal Time of Adaptive Replanning in Prostate Cancer Patients with Weight Change during Volumetric Arc Radiotherapy: A Dosimetric and Mathematical Analysis Using the Gamma Index. Computational and Mathematical Methods in Medicine،Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1142095
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Choi, Hoon Sik…[et al.]. Defining the Optimal Time of Adaptive Replanning in Prostate Cancer Patients with Weight Change during Volumetric Arc Radiotherapy: A Dosimetric and Mathematical Analysis Using the Gamma Index. Computational and Mathematical Methods in Medicine No. 2017 (2017), pp.1-8.
https://search.emarefa.net/detail/BIM-1142095
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Choi, Hoon Sik& Jo, Guang Sub& Chae, Jong Pyo& Lee, Sang Bong& Kim, Chul Hang& Jeong, Bae Kwon…[et al.]. Defining the Optimal Time of Adaptive Replanning in Prostate Cancer Patients with Weight Change during Volumetric Arc Radiotherapy: A Dosimetric and Mathematical Analysis Using the Gamma Index. Computational and Mathematical Methods in Medicine. 2017. Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1142095
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1142095
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر