da Silva Rogério Matias Vidal, Pinezi Juliana Castro Dourado, Macedo Luiz Eduardo Andrade, Souza Divanízia do Nascimento
Master, Fellow PhD degree in Physics, Universidade Federal de Sergipe (UFS), São Cristóvão, SE, Brazil.
Master, Professor, Pontifícia Universidade Católica de Goiás (PUC Goiás), Goiânia, GO, Brazil.
Radiol Bras. 2014 May-Jun;47(3):159-64. doi: 10.1590/0100-3984.2013.1859.
To assess the current situation of high-dose-rate (HDR) brachytherapy for cancer of the cervix in Brazil, regarding apparatuses, planning methods, prescription, fractionation schedule and evaluation of dose in organs at risk.
In the period between March/2012 and May/2013, a multiple choice questionnaire was developed and sent to 89 Brazilian hospitals which perform HDR brachytherapy.
Sixty-one services answered the questionnaire. All regions of the country experienced a sharp increase in the number of HDR brachytherapy services in the period from 2001 to 2013. As regards planning, although a three-dimensional planning software was available in 91% of the centers, conventional radiography was mentioned by 92% of the respondents as their routine imaging method for such a purpose. Approximately 35% of respondents said that brachytherapy sessions are performed after teletherapy. The scheme of four 7 Gy intracavitary insertions was mentioned as the most frequently practiced.
The authors observed that professionals have difficulty accessing adjuvant three-dimensional planning tools such as computed tomography and magnetic resonance imaging.
评估巴西宫颈癌高剂量率近距离放射治疗在设备、计划方法、处方、分割方案以及危及器官剂量评估方面的现状。
在2012年3月至2013年5月期间,编制了一份多项选择题问卷,并发送给89家开展高剂量率近距离放射治疗的巴西医院。
61家机构回复了问卷。在2001年至2013年期间,该国所有地区的高剂量率近距离放射治疗服务数量均急剧增加。在计划方面,尽管91%的中心具备三维计划软件,但92%的受访者称常规放射摄影是他们用于此目的的常规成像方法。约35%的受访者表示近距离放射治疗疗程在远距离治疗之后进行。最常采用的方案是4次7 Gy腔内插植。
作者观察到专业人员在获取诸如计算机断层扫描和磁共振成像等辅助三维计划工具方面存在困难。