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Figure 4 | Radiation Oncology

Figure 4

From: Total error shift patterns for daily CT on rails image-guided radiotherapy to the prostate bed

Figure 4

Sequential plot of daily total error shift vectors for each patient. The vector direction is indicated by the arrowhead which due to scaling often obscures the true magnitude of the vector. Unique vector and arrowhead color combinations were used when multiple patients were plotted in the same graph. The origin of the vector from the initial IGRT CT is always at coordinate (0,0) and has a white arrowhead. The final IGRT CT has a black arrowhead pointing to the patient number. Patient numbering as in Table 2. Patient 3's anteroposterior (a) versus lateral (b) daily vector plot. Patients 5, 6, and 14 anteroposterior (c) versus lateral (d) daily vector plot.

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