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Figure 3 | Radiation Oncology

Figure 3

From: Verifying 4D gated radiotherapy using time-integrated electronic portal imaging: a phantom and clinical study

Figure 3

TI-EPI portals of the phantom imaged in static and moving (gated) mode in both inspiration and expiration. The white arrow on the "End-inspiration (phase gating)" portal points to a pixel location (white dot) of which temporal block information was derived. The lowermost panels shown the merged TI-EPI portals at end-inspiration and end-expiration (bottom left), and the corresponding non-gated image is also shown (bottom right). The bottom left portal shows the profile plot of measured grey values along an 8 cm white line.

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