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Table 4 Results of subjective image quality analysis

From: Optimization of contrast medium volume for abdominal CT in oncologic patients: prospective comparison between fixed and lean body weight-adapted dosing protocols

Parameter Fixed dose protocol (n = 50) Cohen’s κ LBW protocol (n = 50) Cohen’s κ p value
Arterial hepatic enhancement 4 (2–5) 0.73 (95% CI 0.55–0.90) 4 (2–5) 0.71 (95% CI 0.54–0.88) 0.396
PVP hepatic enhancement 5 (3–5) 0.84 (95% CI 0.72–0.96) 5 (3–5) 0.80 (95% CI 0.60–1.00) 0.365
Arterial pancreatic enhancement 4 (2–5) 0.75 (95% CI 0.61–0.88) 4 (3–5) 0.88 (95% CI 0.71–1.00) 0.696
PVP pancreatic enhancement 4 (3–5) 0.90 (95% CI 0.80–1.00) 4 (3–5) 0.91 (95% CI 0.78–1.00) 0.659
Arterial renal enhancement 4 (3–5) 0.94 (95% CI 0.86–1.00) 4 (3–5) 0.97 (95% CI 0.91–1.00) 0.311
PVP renal enhancement 4 (3–5) 0.72 (95% CI 0.53–0.90) 4 (3–5) 0.94 (95% CI 0.86–1.00) 0.213
  1. Data are medians with ranges in parentheses
  2. PVP portal venous phase, LBW lean body weight