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Fig. 5 | Radiation Oncology

Fig. 5

From: Implementation and experimental evaluation of Mega-voltage fan-beam CT using a linear accelerator

Fig. 5

The linear regression between relative electron densities (RED) and mean CT numbers in clinical CT (TP-CT, with routine radiation dose) and mega-voltage fan-beam CT (MV-FBCT, with 30 MU and 60 MU). The Gammex soft-tissue inserts (top charts) include adipose, brain, breast, blood, liver, and solid water. The CIRS soft-tissue inserts (bottom charts) include lung (inhale), lung (exhale), adipose, breast, solid water, muscle, and liver. For bone inserts, the corresponding mass densities of ranged from 200 to 1750 mg/cc. The formula of linear regression and the determination coefficient are presented next to the dashed trendline. The solid arrow indicates the points with respect to the blood-iodine mixture inserts

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