Detail

Keywords

Diagnostic Imaging; Medical Physics; Radiation Protection; Radiation, Ionizing; Tomography, X-Ray Computed

Research interests

Prof. Homolka's main research interests are linked to digital x-ray imaging and interventional radiology physics and dosimetry. This includes optimization of procedures, determination of radiation doses, Dose reference levels and imaging hardware. Recently application of 3D printing in the design and production of radiological phantoms for both, dosimetry and procedure optimization, became a main focus. With regard to teaching, the education and training of clinical medical physicists and medical Physics PhD candidates are Dr. Homolka's major concerns. Other teaching assignments include basic courses for BME and physics master students on imaging physics and current CT technology, and medical physics and radiation protection on Bacc level.

Techniques, methods & infrastructure

Our dosimetry lab offers reference grade dosimeter systems including PTW electrometer systems with an assortment of ion chambers, semiconductor devices and TLDs. In the X-ray lab a Bucky system, a fluoroscopy and a portable x-ray system are ready to use. Additive manufacturing is available trough the 3D printing lab at our department.

Selected publications

1. Ma, X. et al. (2021) ‘Classification of X-Ray Attenuation Properties of Additive Manufacturing and 3D Printing Materials Using Computed Tomography From 70 to 140 kVp’, Frontiers in Bioengineering and Biotechnology, 9. Available at: http://dx.doi.org/10.3389/fbioe.2021.763960.
2. Irnstorfer, N. et al. (2019) ‘An anthropomorphic phantom representing a prematurely born neonate for digital x-ray imaging using 3D printing: Proof of concept and comparison of image quality from different systems’, Scientific Reports, 9(1). Available at: http://dx.doi.org/10.1038/s41598-019-50925-3.
3. Wachabauer, D. et al. (2020) ‘Diagnostic Reference Levels for computed tomography in Austria: A 2018 nationwide survey on adult patients’, European Journal of Radiology, 125, p. 108863. Available at: http://dx.doi.org/10.1016/j.ejrad.2020.108863.
4. Hojreh, A. et al., 2015. Schutz des ungeborenen Lebens bei diagnostischen und interventionellen radiologischen Verfahren. Der Radiologe, 55(8), pp.663-672. Available at: http://dx.doi.org/10.1007/s00117-015-2816-x.
5. Beer, A. et al., 2003. Correlation of insertion torques with bone mineral density from dental quantitative CT in the mandible. Clinical Oral Implants Research, 14(5), pp.616-620. Available at: http://dx.doi.org/10.1034/j.1600-0501.2003.00932.x.