Dosimetric comparison of volumetric modulated arc therapy (VMAT) and high-dose-rate brachytherapy (HDR-BT) for superficial skin irradiation with significant curvature in one or more planes

Autor: Gerry Lowe, Caroline L. Jones, Peter Hoskin, Rachel J. Wills
Rok vydání: 2021
Předmět:
Zdroj: Strahlentherapie und Onkologie. 197:547-554
ISSN: 1439-099X
0179-7158
DOI: 10.1007/s00066-021-01759-4
Popis: This study compares the plan quality of high-dose-rate brachytherapy (HDR-BT) and volumetric modulated arc therapy (VMAT) for superficial irradiation of large areas of skin with significant curvature in one or more planes. A total of 14 patients from two centres previously treated with either HDR-BT or VMAT were retrospectively replanned using the alternative technique. Sites included scalp and lower limbs. Identical computed tomography (CT) scans, clinical target volume (CTV) and organs at risk (OARs) and prescription were used for both techniques. Conformity, skin surface dose and OAR doses were compared. Conformity index was consistently better with VMAT than HDR-BT (p
Databáze: OpenAIRE