Physics and Imaging in Radiation Oncology

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Presentation transcript:

Physics and Imaging in Radiation Oncology An evaluation of systematic errors on marker-based registration of computed tomography and magnetic resonance images of the liver Thomas Woolcot, Evanthia Kousi, Emma Wells, Katharine Aitken, Helen Taylor, Maria A. Schmidt Physics and Imaging in Radiation Oncology Volume 7, Pages 27-31 (July 2018) DOI: 10.1016/j.phro.2018.08.001 Copyright © 2018 The Authors Terms and Conditions

Fig. 1 A. CT Images of the coplanar marker configuration before (left) and after (right) processing to remove the external container shape. The vertical test object orientation makes the arrangement of co-planar markers parallel to the image plane (transaxial) B. A total of N = 12 combinations of test object configuration and MR sequence were registered with CT. Physics and Imaging in Radiation Oncology 2018 7, 27-31DOI: (10.1016/j.phro.2018.08.001) Copyright © 2018 The Authors Terms and Conditions

Fig. 2 Sagittal, coronal and axial views of the vector offset for each MR sequence. The phase encoding (PE), frequency encoding (FE) and slice selection (SS) gradient directions are indicated in bold on the axis labels. Physics and Imaging in Radiation Oncology 2018 7, 27-31DOI: (10.1016/j.phro.2018.08.001) Copyright © 2018 The Authors Terms and Conditions