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Chang et al , Cancer 2009

GTV = gross tumor on 1.25 mm biphasic CT scans ITV = GTV plus deformation on 4D CT (matched by fiducials to biphasic CT) PTV = ITV + 3 mm. Rx - 25 Gy to maximum IDL that covered PTV (~75 - 80%). >. >. Chang et al , Cancer 2009.

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Chang et al , Cancer 2009

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  1. GTV = gross tumor on 1.25 mm biphasic CT scans • ITV = GTV plus deformation on 4D CT (matched by fiducials to biphasic CT) • PTV = ITV + 3 mm • Rx - 25 Gy to maximum IDL that covered PTV (~75 - 80%) > > Chang et al, Cancer 2009

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