Abstract
The verification of patient positioning during radiotherapy relies on the comparison of portal iamges to a reference image which may be a simulator film or a digitally reconstructed radiograph (DRR) from the computerised treatment planning system. While the comparison has been traditionally done by physicians and/or radiation therapists, much research has been undertaken in recent years to determine the differences between simulator and portal images utilising automatic and quantitative systems (1–4). The outcome is a numerical value for the shift and/or rotation of the treatment field as determined in each portal image in relation to the simulator image.
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© 2000 Springer-Verlag Berlin Heidelberg
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Kron, T., Hamilton, C., Hood, C., Wratten, C., Denham, J. (2000). Computer assisted decision making after portal imaging. In: Schlegel, W., Bortfeld, T. (eds) The Use of Computers in Radiation Therapy. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-59758-9_221
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DOI: https://doi.org/10.1007/978-3-642-59758-9_221
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