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Table 5 Correlation analysis of DLP (mGy-cm) and patient diameter

From: Chest-abdomen-pelvis CT for staging in cancer patients: dose effectiveness and image quality using automated attenuation-based tube potential selection

   Patients DLP (mGy · cm) Body diameter (mm): lateral Body diameter (mm): transverse Spearman correlation coefficient (rho) – lateral diameter/DLP Spearman correlation coefficient (rho) – transverse diameter/DLP
Group 1 Patients 100 kV 32 564 (390–871) 327.3 (280.7–408) 228.2 (150.7–317.2) 0.81 0.87
Patients 120 kV 17 833 (470–1235) 351.2 (281.1–452.5) 249 (165.7–346.8) 0.80 0.85
Patients 140 kV 6 1302 (1157–2203) 442.5 (401.5–478) 290.1 (259–409) 0.42 0.43
Group 2 Patients 120 kV 55 756 (345–2267) 330.8 (196.3–496.1) 241.9 (155.9–446.3) 0.88 0.82