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Table 1: 
CTDIvol as a function of gantry angulationa
TiltCTDIvol (mGy)TiltCTDIvol (mGy)
3044.8051.6
2546.9−551.6
2048.6−1051.1
1550.1−1550.1
1051.1−2048.6
551.6−2546.9
  • a Scanning parameters were identical for each angle. Positive tilt values correspond to the caudal direction; negative tilt values correspond to the cranial direction.