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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Representative CBCT-CT matching was performed for the shoulders (top) and abdomen (bottom) isocenters. The RVS was measured as the maximum center distance between the bone marrow of the extremities. Large (left) and small (right) RVS values are reported. RVS = residual vector shift.