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Table 1 Protocol of 3D-CT

From: Prenatal diagnosis of fetal skeletal dysplasia using 3-dimensional computed tomography: a prospective study

slice thickness (mm)

1.0

slice interval (mm)

1.0

rotation time (sec)

0.5

helical pitch

1.438

voltage (kV)

120

beam width (mm)

16

CTDIvol (mGy) mean (range)

3.5 (1.9–4.9)

DLP (mGy.cm) mean (range)

133.6 (58.1–175.8)

  1. CTDIvol CT dose index volume, DLP dose length product