Table 2.

Effect of age, HT, TBW, BMI, BSA, LBW, and scan delay on the CT number of the brachial artery and vein.

Patient index used to adjust the iodine concentration with the brachial artery	Correlation coefficient (r)
BSA (m2)	0.56
LBW (kg)	0.55
TBW (kg)	0.52
HT (cm)	0.45
BMI (kg/m2)	0.21
Age (yr)	0.21
Scan delay (s)	0.19
Patient index used to adjust the iodine concentration with the brachial vein	Correlation coefficient (r)
BSA (m2)	0.54
LBW (kg)	0.53
TBW (kg)	0.50
HT (cm)	0.42
BMI (kg/m2)	0.23
Age (yr)	0.23
Scan delay (s)	0.19

BMI = body mass index, BSA = body surface area, CT = computed tomography, HT = height, LBW = lean body weight, TBW = total body weight.