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

Insights into Imaging

Table 4 Results of subjective image quality analysis

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