Comparison of ITV registration results by rigid registration (a) versus deformable registration (b).
Schematic draw of tumor motion patterns and ITV positions during 4DCT and three CBCT scans for registration uncertainty check on a respiration motion phantom.
Registration shifts in three directions among B, G, and CTC methods.
Statistic results of dose coverage differences of ITV by B, G, and CTC methods.
DVH illustrations of three extreme cases.
Statistic results of geometric discrepancies among CTC, B, and G methods.
ITV volumetric variations from A4DCT to CBCT.
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