Villalba Silvia Rodríguez, Perez-Calatayud Maria Jose, Bautista Juan Antonio, Carmona Vicente, Celada Francisco, Tormo Alejandro, García-Martinez Teresa, Richart José, Ortega Manuel Santos, Silla Magda, Ballester Facundo, Perez-Calatayud Jose
Radiotherapy Department, Clínica Benidorm, Benidorm.
Radiotherapy Department, La Fe University and Polytechnic Hospital, Valencia.
J Contemp Brachytherapy. 2016 Aug;8(4):344-8. doi: 10.5114/jcb.2016.61713. Epub 2016 Aug 9.
Esteya and Valencia surface applicators are designed to treat skin tumors using brachytherapy. In clinical practice, in order to avoid errors that may affect the treatment outcome, there are two issues that need to be carefully addressed. First, the selected applicator for the treatment should provide adequate margin for the target, and second, the applicator has to be precisely positioned before each treatment fraction. In this work, we describe the development and use of a new acrylic templates named Template La Fe-ITIC. They have been designed specifically to help the clinical user in the selection of the correct applicator, and to assist the medical staff in reproducing the positioning of the applicator. These templates are freely available upon request.
Templates that were developed by University and Polytechnic Hospital La Fe (La Fe) and Hospital Clínica Benidorm (ITIC) in cooperation with Elekta, consist of a thin sheet made of transparent acrylic. For each applicator, a crosshair and two different circles are drawn on these templates: the inner one corresponds to the useful beam, while the outer one represents the external perimeter of the applicator. The outer circle contains slits that facilitate to draw a circle on the skin of the patient for exact positioning of the applicator. In addition, there are two perpendicular rulers to define the adequate margin. For each applicator size, a specific template was developed.
The templates have been used successfully in our institutions for more than 50 patients' brachytherapy treatments. They are currently being used for Esteya and Valencia applicators.
The template La Fe-ITIC is simple and practical. It improves both the set-up time and reproducibility. It helps to establish the adequate margins, an essential point in the clinical outcome.
Esteya和Valencia表面施源器旨在利用近距离放射疗法治疗皮肤肿瘤。在临床实践中，为避免可能影响治疗结果的误差，有两个问题需要仔细解决。第一，所选的治疗施源器应为靶区提供足够的边界，第二，在每次治疗分次前必须精确放置施源器。在本研究中，我们描述了一种名为Template La Fe - ITIC的新型丙烯酸模板的开发和使用。它们专门设计用于帮助临床使用者选择正确的施源器，并协助医务人员重现施源器的放置位置。这些模板可应要求免费提供。
由拉费大学和理工医院（La Fe）与贝尼多姆临床医院（ITIC）合作并与医科达公司共同开发的模板，由透明丙烯酸制成的薄片组成。对于每个施源器，在这些模板上绘制一个十字准线和两个不同的圆圈：内部的圆圈对应有用射束，而外部的圆圈代表施源器的外周。外圆包含狭缝，便于在患者皮肤上绘制圆圈以精确放置施源器。此外，还有两个垂直标尺以确定足够的边界。针对每个施源器尺寸，开发了特定的模板。
这些模板已在我们的机构中成功用于50多名患者的近距离放射治疗。它们目前用于Esteya和Valencia施源器。
Template La Fe - ITIC模板简单实用。它缩短了设置时间并提高了可重复性。它有助于确定足够的边界，这是临床结果的关键要点。
