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. Author manuscript; available in PMC: 2024 Jan 9.

Published in final edited form as: J Radiol Prot. 2014 Apr 14;34(2):363–388. doi: 10.1088/0952-4746/34/2/363

Figure 3. — Percent coefficient of variation (COV) of the normalized ${CTDI}_{w}$ (mGy/100mAs) for head CTDI phantoms and the tube potential of 120 kVp across different data sources for four major scanner manufacturers: (a) GE, (b) Philips, (c) Siemens, and (d) Toshiba.

Figure 3. — Percent coefficient of variation (COV) of the normalized ${CTDI}_{w}$ (mGy/100mAs) for head CTDI phantoms and the tube potential of 120 kVp across different data sources for four major scanner manufacturers: (a) GE, (b) Philips, (c) Siemens, and (d) Toshiba.