Brazil's Challenges and Opportunities

Moraes, Fábio Ynoe de; Marta, Gustavo Nader; Hanna, Samir Abdallah; Leite, Elton Trigo Teixeira; Ferrigno, Robson; Silva, João Luís Fernandes da; Carvalho, Heloísa de Andrade

doi:10.1016/j.ijrobp.2014.12.063

Cited by 39 publications

(27 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The benefits of the better use of technical resources come with the charge of personnel training and the more time-consuming of the whole treatment process. The later represents a limitation for the routine use of 3D IGBT in developing countries where radiation oncology departments are busy, usually with waiting lists, and with limited human and technical resources [ 28 ]. Currently, our department is able to perform only one case per month (one fraction/week) of intracavitary 3D IGBT due to logistical issues.…”

Section: Discussionmentioning

confidence: 99%

Implementation of image-guided brachytherapy (IGBT) for patients with uterine cervix cancer: a tumor volume kinetics approach

Carvalho¹,

Mendez²,

Stuart³

et al. 2016

jcb

Self Cite

View full text Add to dashboard Cite

PurposeTo evaluate tumor shrinking kinetics in order to implement image-guided brachytherapy (IGBT) for the treatment of patients with cervix cancer.Material and methodsThis study has prospectively evaluated tumor shrinking kinetics of thirteen patients with uterine cervix cancer treated with combined chemoradiation. Four high dose rate brachytherapy fractions were delivered during the course of pelvic external beam radiation therapy (EBRT). Magnetic resonance imaging (MRI) exams were acquired at diagnosis (D), first (B1), and third (B3) brachytherapy fractions. Target volumes (GTV and HR-CTV) were calculated by both the ellipsoid formula (VE) and MRI contouring (VC), which were defined by a consensus between at least two radiation oncologists and a pelvic expert radiologist.ResultsMost enrolled patients had squamous cell carcinoma and FIGO stage IIB disease, and initiated brachytherapy after the third week of pelvic external beam radiation. Gross tumor volume volume reduction from diagnostic MRI to B1 represented 61.9% and 75.2% of the initial volume, when measured by VE and VC, respectively. Only a modest volume reduction (15-20%) was observed from B1 to B3.ConclusionsThe most expressive tumor shrinking occurred in the first three weeks of oncological treatment and was in accordance with gynecological examination. These findings may help in IGBT implementation.

show abstract

Section: Discussionmentioning

confidence: 99%

Implementation of image-guided brachytherapy (IGBT) for patients with uterine cervix cancer: a tumor volume kinetics approach

Carvalho¹,

Mendez²,

Stuart³

et al. 2016

jcb

Self Cite

View full text Add to dashboard Cite

show abstract

“…In 1959, the first cobalt-60 machine in the National Cancer Institute was installed, and in 1972 the first linear accelerator was installed at the Oswaldo Cruz Hospital. Currently, Brazilian radiotherapy is one of the most advanced in Latin America, offering high-energy proton radiotherapy, with more than 300 linear accelerators machines, more than 60 cobalt machines and more than 100 HDR brachytherapy machines, distributed all over the country and with the major scientific production in this field in Latin America [16]. …”

Section: History Of Radiotherapy Development In Latam Countriesmentioning

confidence: 99%

History of the development of radiotherapy in Latin America

Pinillos¹,

Pinto²,

Sarria³

2017

ecancer

View full text Add to dashboard Cite

Radiotherapy was the first nonsurgical treatment for malignant tumours and represents one of the oldest disciplines of oncology. In Latin America, as in many parts of the world, the history of modern oncology begins with the implementation of radiation therapy facilities. The development of radiotherapy in Latin America was possible thanks to the seminal work of radiation oncologists in different countries. As a large territory, there is a need to implement modern facilities and equipment, but unfortunately there are disparities in the access and quality of radiotherapy services across Latin America and even within individual countries. In this review, we describe the history, challenges and success in the implementation of radiotherapy and the frustration caused by the lack of facilities in several Latin American countries.

show abstract

“…To the Editor: We are very proud to know that the community is reading and commenting on our article "Brazil's Challenges and Opportunities" (1,2).…”

Section: In Reply To Leungmentioning

confidence: 99%

“…In Regard to Brown et al To the Editor: We have read with interest the study of delineation of supraclavicular (SCV) lymph nodes in breast cancer by Brown et al (1). On the basis of their analysis, in addition to the medial SCV region, the posterior triangle and lateral low SCV region should be covered by the radiation field for postoperative patients with indications for regional nodal irradiation.…”

Section: Delineation Of Supraclavicular Target Volumes In Breast Cancmentioning

confidence: 99%

“…However, it is different for the posterior triangle. In clinical practice solitary lymph node macrometastasis in the posterior triangle is scarce, and most patients with disease in the posterior triangle have multiple SCV metastases (1,2). It could be explained that cancer cells of the lymph node in the posterior triangle are directly transferred from the media SCV region.…”

Section: Delineation Of Supraclavicular Target Volumes In Breast Cancmentioning

Brazil's Challenges and Opportunities

Cited by 39 publications

References 2 publications

Implementation of image-guided brachytherapy (IGBT) for patients with uterine cervix cancer: a tumor volume kinetics approach

Implementation of image-guided brachytherapy (IGBT) for patients with uterine cervix cancer: a tumor volume kinetics approach

History of the development of radiotherapy in Latin America

In Reply to Leung

Contact Info

Product

Resources

About