Table 1. Patient characteristics of the study groups.

Variables	Dual-energy CTA (n=29)	Conventional CTA (n=24)
Patient characteristics
Male:female	27:2	23:1
Age (years)	57.88±9.71	58.04±10.53
Height (cm)	166.45±8.06	166.46±7.68
Weight (kg)	75.33±16.59	74.23±16.38
BMI (kg/m2)	27.76±7.14	27.38±6.86
Radiation dose
DLP (mGy·cm)	1,246.93±44.12	1,322.31±431.82
Effective dose (mSv)*	6.98±0.24	7.40±2.41

*, conversion factor for peripheral DECTA and conventional CTA =0.0056 mSv/mGy·cm. CTA, computed tomography angiography; BMI, body mass index; DLP, dose length product.