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06.09.2018 | Short Communication

Heart-sparing volumetric modulated arc therapy for whole lung irradiation

verfasst von: Alexandros Papachristofilou, Anna-Lena Hottinger, Oliver Weinhold, Yasar-Kemal Avcu, Tobias Finazzi, Tamara Diesch, Ulrich Schratzenstaller

Erschienen in: Strahlentherapie und Onkologie | Ausgabe 1/2019

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Abstract

Purpose

Whole lung irradiation (WLI) is indicated for subgroups of patients with lung metastases from Wilms’ tumor (nephroblastoma). WLI has traditionally been performed with an anterior/posterior field arrangement with poor potential for heart sparing; thus, new techniques are desirable to achieve a lower dose to the heart.

Materials and methods

We utilized volumetric modulated arc therapy (VMAT) for WLI with 18 Gy in a patient with metastatic nephroblastoma. The planning results were compared against a three-dimensional (3D) conformal plan.

Results

VMAT resulted in adequate target volume coverage with the prescribed dose. Mean heart dose was 10.2 Gy. The dose to organs at risk (OAR) was generally more favorable with VMAT when compared with a 3D-conformal radiotherapy plan.

Discussion

WLI with VMAT provides superior sparing of OARs and especially a considerably lower dose to the heart.

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Titel: Heart-sparing volumetric modulated arc therapy for whole lung irradiation
verfasst von: Alexandros Papachristofilou
Anna-Lena Hottinger
Oliver Weinhold
Yasar-Kemal Avcu
Tobias Finazzi
Tamara Diesch
Ulrich Schratzenstaller
Publikationsdatum: 06.09.2018
Verlag: Springer Berlin Heidelberg
Erschienen in: Strahlentherapie und Onkologie / Ausgabe 1/2019
Print ISSN: 0179-7158
Elektronische ISSN: 1439-099X
DOI: https://doi.org/10.1007/s00066-018-1363-6

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Heart-sparing volumetric modulated arc therapy for whole lung irradiation