التفاصيل البيبلوغرافية
| العنوان: |
Table_1_Dosimetric Evaluation of Commercially Available Flat vs. Self-Produced 3D-Conformal Silicone Boluses for the Head and Neck Region.xlsx |
| المؤلفون: |
Stephan Pollmann, André Toussaint, Michael Flentje, Sonja Wegener, Victor Lewitzki |
| سنة النشر: |
2022 |
| المجموعة: |
Frontiers: Figshare |
| مصطلحات موضوعية: |
Cancer, Cancer Cell Biology, Cancer Diagnosis, Cancer Genetics, Cancer Therapy (excl. Chemotherapy and Radiation Therapy), Chemotherapy, Haematological Tumours, Molecular Targets, Radiation Therapy, Solid Tumours, Oncology and Carcinogenesis not elsewhere classified, flat silicone bolus, individual silicone bolus, 3D conformal silicone bolus, 3D printer, head and neck cancer, fused deposition modeling (FDM), surface dose measurement, volumetric modulated arc therapy (VMAT) |
| الوصف: |
Background Boluses are routinely used in radiotherapy to modify surface doses. Nevertheless, considerable dose discrepancies may occur in some cases due to fit inaccuracy of commercially available standard flat boluses. Moreover, due to the simple geometric design of conventional boluses, also surrounding healthy skin areas may be unintentionally covered, resulting in the unwanted dose buildup. With the fused deposition modeling (FDM) technique, there is a simple and possibly cost-effective way to solve these problems in routine clinical practice. This paper presents a procedure of self-manufacturing bespoke patient-specific silicone boluses and the evaluation of buildup and fit accuracy in comparison to standard rectangular commercially available silicone boluses. Methods 3D-conformal silicone boluses were custom-built to cover the surgical scar region of 25 patients who received adjuvant radiotherapy of head and neck cancer at the University Hospital Würzburg. During a standard CT-based planning procedure, a 5-mm-thick 3D bolus contour was generated to cover the radiopaque marked surgical scar with an additional safety margin. From these digital contours, molds were 3D printed and poured with silicone. Dose measurements for both types of boluses were performed with radiochromic films (EBT3) at three points per patient—at least one aimed to be in the high-dose area (scar) and one in the lower-dose area (spared healthy skin). Surface–bolus distance, which ideally should not be present, was determined from cone-beam CT performed for positioning control. The dosimetric influence of surface–bolus distance was also determined on slab phantom for different field sizes. The trial was performed with hardware that may be routinely available in every radiotherapy department, with the exception of the 3D printer. The required number of patients was determined based on the results of preparatory measurements with the help of the statistical consultancy of the University of Würzburg. The number of measuring points ... |
| نوع الوثيقة: |
dataset |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/dataset/Table_1_Dosimetric_Evaluation_of_Commercially_Available_Flat_vs_Self-Produced_3D-Conformal_Silicone_Boluses_for_the_Head_and_Neck_Region_xlsx/20460624 |
| DOI: |
10.3389/fonc.2022.881439.s001 |
| الاتاحة: |
https://doi.org/10.3389/fonc.2022.881439.s001
https://figshare.com/articles/dataset/Table_1_Dosimetric_Evaluation_of_Commercially_Available_Flat_vs_Self-Produced_3D-Conformal_Silicone_Boluses_for_the_Head_and_Neck_Region_xlsx/20460624 |
| Rights: |
CC BY 4.0 |
| رقم الانضمام: |
edsbas.5D3277E8 |
| قاعدة البيانات: |
BASE |