| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Research Abstract |
In this study, pixel values obtained from CBCT were lower than CT values from MDCT in the same imaging conditions. In addition, pixel values obtained from CBCT made significant differences by various tube voltages, tube currents, FOVs and positions of the subject in the FOV. These were thought to be due to a lack of calibration and to be due to the device-specific correction of X-ray scattering, the protrusion of the subject outside the FOV, the large cone angle, the beam hardening effects and the image construction algorithm in CBCT.
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