Quality assurance for dynamic tumor tracking

Witulla B, Ziegler M, Brandt T, Prasetio H, Fietkau R, Bert C (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Zeitschrift für Medizinische Physik Elsevier Science B.v; Amsterdam

DOI: 10.1016/j.zemedi.2021.01.002

Abstract

The purpose of this work was to develop a treatment plan verification routine for a linear accelerator dedicated to SBRT treatments with gimbal based dynamic tumor tracking using three commercially available phantoms. The accelerator system has two special features: It operates with a rotation of the ring shaped gantry instead of a couch rotation and target motion can be compensated for via a gimbal system (dynamic tumor tracking, DTT). DTT plans were each measured with the three different phantoms. Afterwards the measured dose distribution was compared with the calculated dose distribution via global Gamma Index analysis (3 mm / 3%, threshold: 10%). The global gamma pass rates were on average (93.5 ± 7.2) % for ArcCHECK, (98.0 ± 2.6) % for OCTAVIUS® 4D and (98.4 ± 4.2) % for MatriXX Evolution. All three systems could be used for quality assurance with ring rotations and DTT, however, each with limitations.

Authors with CRIS profile

Barbara Witulla Professur für Med. Strahlenphysik Marc Ziegler Department of Radiation Oncology Tobias Brandt Department of Radiation Oncology Heru Prasetio Professur für Med. Strahlenphysik Rainer Fietkau Lehrstuhl für Strahlentherapie Christoph Bert Professur für Med. Strahlenphysik

How to cite

APA:

Witulla, B., Ziegler, M., Brandt, T., Prasetio, H., Fietkau, R., & Bert, C. (2021). Quality assurance for dynamic tumor tracking. Zeitschrift für Medizinische Physik. https://dx.doi.org/10.1016/j.zemedi.2021.01.002

MLA:

Witulla, Barbara, et al. "Quality assurance for dynamic tumor tracking." Zeitschrift für Medizinische Physik (2021).

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