The value of PET-CT and CT in the assessment after radiofrequency ablation in lung cancer / 中国医师进修杂志

ABSTRACT

Objective To explore the value of PET-CT and CT in the assessment after radiofrequency ablation (RFA) in lung cancer.Methods Eighteen patients were randomly divided into short-term group ( 8 cases) and long-term group ( 10 cases).Patients in short-term group received PET-CT and CT examination within 10 days after RFA therapy,whereas those in long-term group got PET-CT and CT examination within 2 months after RFA therapy.The value of PET-CT and CT after RFA therapy through the result of the image was compared between two groups.Results All patients were classified as stable disease in CT,while in PET-CT assessment,33.33％ (6/18) of the patients presented complete remission and 66.67％ (12/18)presented partial remission.37.50％ (3/8) of short-term group presented complete remission,62.50％ (5/8) of short-term group presented partial remission.30.00％ (3/10) of long-term group presented complete remission,70.00％(7/l0) of long-term group presented partial remission.Conclusion PET-CT is superior to CT in the assessment of the effectiveness of RFA therapy,and there is no difference between short-term and long-term PET-CT examination,therefore early PET-CT is more with clinical significance.