![](/images/graphics-bg.png)
Interfractional Variations of Tumor Centroid Position and Tumor Regression during Stereotactic Body Radiotherapy for Lung Tumor
المؤلفون المشاركون
Sun, Yanan
Lu, Yufei
Cheng, Siguo
Guo, Wei
Ye, Ke
Zhao, Huiyun
Zheng, Xiaoli
Li, Dingjie
Wang, Shujuan
Yang, Chengliang
Ge, Hong
المصدر
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-8، 8ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-12-07
دولة النشر
مصر
عدد الصفحات
8
التخصصات الرئيسية
الملخص EN
Purpose.
To determine interfractional changes of lung tumor centroid position and tumor regression during stereotactic body radiation therapy (SBRT).
Methods and Materials.
34 patients were treated by SBRT in 4-5 fractions to a median dose of 50 Gy.
The CT scans acquired for verification were registered with simulation CT scans.
The gross target volume (GTV) was contoured on all verification CT scans and compared to the initial GTV in treatment plan system.
Results.
The mean ( ± standard deviation, SD) three-dimension vector shift was 5.2 ± 3.1 mm.
The mean ( ± SD ) interfractional variations of tumor centroid position were - 0 .
7 ± 4 .
5 mm in anterior-posterior (AP) direction, 0.2 ± 3.1 mm in superior-inferior (SI) direction, and 0 .
4 ± 2 .
4 mm in right-left (RL) direction.
Large interfractional variations ( ≥ 5 mm) were observed in 5 fractions (3.3%) in RL direction, 16 fractions (10.5%) in SI direction, and 36 fractions (23.5%) in AP direction.
Tumor volume did not decrease significantly during lung SBRT.
Conclusions.
Small but insignificant tumor volume regression was observed during lung SBRT.
While the mean interfractional variations of tumor centroid position were minimal in three directions, variations more than 5 mm account for approximately a third of all, indicating additional margin for PTV, especially in AP direction.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Sun, Yanan& Lu, Yufei& Cheng, Siguo& Guo, Wei& Ye, Ke& Zhao, Huiyun…[et al.]. 2014. Interfractional Variations of Tumor Centroid Position and Tumor Regression during Stereotactic Body Radiotherapy for Lung Tumor. BioMed Research International،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1016254
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Sun, Yanan…[et al.]. Interfractional Variations of Tumor Centroid Position and Tumor Regression during Stereotactic Body Radiotherapy for Lung Tumor. BioMed Research International No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1016254
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Sun, Yanan& Lu, Yufei& Cheng, Siguo& Guo, Wei& Ye, Ke& Zhao, Huiyun…[et al.]. Interfractional Variations of Tumor Centroid Position and Tumor Regression during Stereotactic Body Radiotherapy for Lung Tumor. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1016254
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1016254
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
![](/images/ebook-kashef.png)
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
![](/images/kashef-image.png)