Dosimetric advantages of proton therapy over conventional radiotherapy with photons in young patients and adults with low-grade glioma Dosimetrische Vorteile der Protonentherapie gegenüber der konventionellen Strahlentherapie mit Photonen bei jungen Patienten und Erwachsenen mit niedriggradigem Gliom
Harrabi SBMD, Bougatf N, Mohr AMD, Haberer TPD, Herfarth KMD, Combs SE, Debus J, Adeberg S (2016)
Publication Type: Journal article
Publication year: 2016
Journal
Book Volume: 192
Pages Range: 759-769
Journal Issue: 11
DOI: 10.1007/s00066-016-1005-9
Abstract
Background and purpose: Low-grade glioma (LGG) is a very common brain tumor in pediatric patients typically associated with a very good prognosis. This prognosis makes it imperative that the risk of long-term treatment-related side effects be kept at an absolute minimum. Proton therapy (PRT) provides a radiation technique that has the potential to further reduce the genesis of radiogenic impairment. Materials and methods: We retrospectively assessed 74 patients with LGG who underwent PRT. Conventional three-dimensional photon and PRT plans were generated after contouring structures of neurogenesis, crucial neuronal structures, and areas susceptible to secondary malignancies. Target volume coverage was evaluated using the homogeneity index (HI) and inhomogeneity coefficient (IC). Results were compared using the Wilcoxon-signed rank test, with p < 0.05 being statistically significant. Results: Target volume coverage was comparable for the photon and proton plans. Overall, we could show an essential reduction in maximal, mean, and integral doses in critical neurologic structures, areas of neurogenesis, and structures of neurocognitive function. The study indicated specifically how contralaterally located structures could be spared with PRT. Conclusion: PRT is a highly conformal radiation technique offering superior dosimetric advantages over conventional radiotherapy by allowing significant dose reduction for organs at risk (OAR) that are essential for neurologic function, neurocognition, and quality of life, thus demonstrating the potential of this technique for minimizing long-term sequelae.
Involved external institutions
Universitätsklinikum Heidelberg
Germany (DE)
Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt (HMGU) / Helmholtz Munich
Germany (DE)
Germany (DE)
Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt (HMGU) / Helmholtz Munich
Germany (DE)
How to cite
APA:
Harrabi, S.B.M.D., Bougatf, N., Mohr, A.M.D., Haberer, T.P.D., Herfarth, K.M.D., Combs, S.E.,... Adeberg, S. (2016). Dosimetric advantages of proton therapy over conventional radiotherapy with photons in young patients and adults with low-grade glioma Dosimetrische Vorteile der Protonentherapie gegenüber der konventionellen Strahlentherapie mit Photonen bei jungen Patienten und Erwachsenen mit niedriggradigem Gliom. Strahlentherapie und Onkologie, 192(11), 759-769. https://dx.doi.org/10.1007/s00066-016-1005-9
MLA:
Harrabi, S. B. M. D., et al. "Dosimetric advantages of proton therapy over conventional radiotherapy with photons in young patients and adults with low-grade glioma Dosimetrische Vorteile der Protonentherapie gegenüber der konventionellen Strahlentherapie mit Photonen bei jungen Patienten und Erwachsenen mit niedriggradigem Gliom." Strahlentherapie und Onkologie 192.11 (2016): 759-769.
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