Intensity-modulated radiation therapy for head and neck cancer: Systematic review and meta-analysis

Marta, Gustavo Nader; Silva, Valter; Carvalho, Heloísa de Andrade; Arruda, Fernando Freire de; Hanna, Samir Abdallah; Gadia, Rafael; Silva, João Luís Fernandes da; Correa, Sebastião Francisco Miranda; Abreu, Carlos Eduardo Cintra Vita; Riera, Rachel

doi:10.1016/j.radonc.2013.11.010

Cited by 243 publications

(184 citation statements)

References 34 publications

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“…Then, deformable image registration (DIR) technique is utilized to establish the point-point correspondence between the planning computed tomography (CT) and the CBCT. The resulting deformation vector field (DVF) can be used for (1) propagating contoured region of interest (ROI) from one image to another [6] and (2) deformation of the re-planned dose maps to integrate the accumulated dose given to the patient [7].…”

Section: LI Et Al / Evaluation Of Ct-cbct Dir For Contour Propagamentioning

confidence: 99%

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Evaluation of deformable image registration for contour propagation between CT and cone-beam CT images in adaptive head and neck radiotherapy

Zhang

Shi

et al. 2016

THC

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Abstract. Deformable image registration (DIR) is a critical technic in adaptive radiotherapy (ART) to propagate contours between planning computerized tomography (CT) images and treatment CT/Cone-beam CT (CBCT) image to account for organ deformation for treatment re-planning. To validate the ability and accuracy of DIR algorithms in organ at risk (OAR) contours mapping, seven intensity-based DIR strategies are tested on the planning CT and weekly CBCT images from six Head & Neck cancer patients who underwent a 6 ∼ 7 weeks intensity-modulated radiation therapy (IMRT). Three similarity metrics, i.e. the Dice similarity coefficient (DSC), the percentage error (PE) and the Hausdorff distance (HD), are employed to measure the agreement between the propagated contours and the physician delineated ground truths. It is found that the performance of all the evaluated DIR algorithms declines as the treatment proceeds. No statistically significant performance difference is observed between different DIR algorithms (p > 0.05), except for the double force demons (DFD) which yields the worst result in terms of DSC and PE. For the metric HD, all the DIR algorithms behaved unsatisfactorily with no statistically significant performance difference (p = 0.273). These findings suggested that special care should be taken when utilizing the intensitybased DIR algorithms involved in this study to deform OAR contours between CT and CBCT, especially for those organs with low contrast.

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Section: LI Et Al / Evaluation Of Ct-cbct Dir For Contour Propagamentioning

confidence: 99%

“…The intensity-modulated radiation therapy (IMRT) plays a critical role in the management of head and neck (H & N) cancer patients [1]. IMRT can maximize tumor coverage and sparing of organs at risk (OARs) by generating steep dose gradient, and thus leads to a potential increase in the therapeutic outcome [2].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of deformable image registration for contour propagation between CT and cone-beam CT images in adaptive head and neck radiotherapy

Zhang

Shi

et al. 2016

THC

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“…Este método é chamado de radioterapia bidimensional (também referida como convencional ou 2D) (73) . Quando a tomografia computadorizada foi introduzida como método de imagem para planejamento, passou a ser possível determinar com maior precisão o local a ser tratado, uma vez que o tumor, as áreas de risco para recidiva (como drenagens linfonodais) e os órgãos em risco são definidos e visualizados volumetricamente.…”

Section: Aspectos Gerais Da Radioterapia Para Os Tumores De Cavidade unclassified

“…Além de o programa de computador mostrar a distribuição da dose de radiação no interior do corpo do paciente, ele cria gráficos com a intensidade de dose ao longo de cada estrutura. Isso permite conhecer a informação da potencial toxicidade do tratamento sobre os órgãos e se o tumor está sendo ou não adequadamente tratado (73) .…”

Section: Aspectos Gerais Da Radioterapia Para Os Tumores De Cavidade unclassified

Quimioterapia de indução seguida de cirurgia com ou sem radioterapia adjuvante para pacientes com diagnóstico de câncer de cavidade oral: revisão sistemática e metanálise

Marta¹

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“…Compared with conventional RT, intensity-modulated RT resulted in fewer radiotherapy-related effects (such as painful damage to the oral mucosa and salivary glands) among patients with HNC [222][223][224]. Of the patients in Paper IV, 49 received intensity-modulated RT and 15 conventional RT.…”

Section: Low Barriers For Treatment Of Pain and Low Pain Intensitymentioning

confidence: 99%

Impact of Pain and Evaluation of Education and Self-Care in Patients with Head and Neck Cancer

Schaller¹

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Intensity-modulated radiation therapy for head and neck cancer: Systematic review and meta-analysis

Cited by 243 publications

References 34 publications

Evaluation of deformable image registration for contour propagation between CT and cone-beam CT images in adaptive head and neck radiotherapy

Evaluation of deformable image registration for contour propagation between CT and cone-beam CT images in adaptive head and neck radiotherapy

Quimioterapia de indução seguida de cirurgia com ou sem radioterapia adjuvante para pacientes com diagnóstico de câncer de cavidade oral: revisão sistemática e metanálise

Impact of Pain and Evaluation of Education and Self-Care in Patients with Head and Neck Cancer

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