Clinical Application of CT-Guided Percutaneous Microwave Ablation for the Treatment of Lung Metastasis from Colorectal Cancer

Table 1

Clinical features of the patients.

Clinical parameters	Number of patients, N (%)
Sex
Male	14 (57.9)
Female	8 (42.1)
Age (years)
Range	25–73
Mean	56.05 ± 12.32
Unilateral/bilateral
Unilateral	18 (81.8)
Bilateral	4 (18.2)
Lesion size (cm)
≤3.5	22
>3.5	0
Number of lesions
1	14 (63.6)
>1	8 (36.4)
Primary tumor
Rectum	15 (68.2)
Colon	7 (31.8)
CEA
Negative (≤5 ng/mL)	9 (40.9)
Positive (>5 ng/mL)	13 (59.1)
Total	22