AG Sauer

Otto Sauer: Radiotherapy Physics

Summary

High-quality modern radiotherapy treatments heavily rely on the correct dosimetry during beam data commissioning and plan verification. Our research activity addresses dosimetry and detector response under challenging measurement conditions, such as in small fields, at interfaces, in flattening filter free beams or in highly modulated photon fields, using different 2D and 3D detectors and portal dosimetry. This work impacts national and international dosimetry protocols. Work on treatment plan verification has direct clinical impact.

Selected Publications

Spickerman H, Wegener S, Sauer OA. Evaluation of the reconstructed dose from the three-dimensional dose module of a helical diode array: factors of influence and error detection. Phys Med Biol. 2018 Dec; 64(1):015010

Razinskas G, Wegener S, Greber J, Sauer OA. Sensitivity of the IQM transmission detector to errors of VMAT plans. Medical Physics. 2018 Dec; 45(12):5622-30

Wegener S, Sauer OA. Energy response corrections for profile measurements using a combination of different detector types. Medical Physics. 2018 Feb; 45(2):898-907

Wegener S, Sauer OA. Separation of scatter from small MV beams and its effect on detector response. Medical Physics. 2017 Mar; 44(3):1139-48

Guckenberger M, Andratschke N, Alheit H, Holy R, Moustakis C, Nestle U, Sauer O. Definition of stereotactic body radiotherapy Principles and practice for the treatment of stage I non-small cell lung cancer. Strahlentherapie und Onkologie. 2014 Jan;190(1):26-33

Yarahmadi M, Allahverdi M, Nedaie HA, Asnaashari K, Vaezzadeh SA, Sauer OA. Improvement of the penumbra for small radiosurgical fields using flattening filter free low megavoltage beams. Zeitschrift für Medizinische Physik. 2013 2013;23(4):291-99

Sauer OA, Wilbert J. Functional representation of tissue phantom ratios for photon fields. Medical Physics. 2009 Dec;36(12):5444-50

Sauer OA. Determination of the quality index (Q) for photon beams at arbitrary field sizes. Medical Physics. 2009 Sep;36(9):4168-72

Sauer OA, Wilbert J. Measurement of output factors for small photon beams. Medical Physics. 2007 Jun;34(6):1983-88