Comparative study of monopolar radiofrequency ablation and no-touch multipolar radiofrequency ablation in the treatment of liver tumors under the guidance of contrast-enhanced ultrasound
CHEN Ping, TANG Chunlin, CHEN Kaixuan, et al. Comparative study of monopolar radiofrequency ablation and no-touch multipolar radiofrequency ablation in the treatment of liver tumors under the guidance of contrast-enhanced ultrasound[J]. Journal of Clinical Ultrasound in Medicine, 2020,22(9):647-650.
CHEN Ping, TANG Chunlin, CHEN Kaixuan, et al. Comparative study of monopolar radiofrequency ablation and no-touch multipolar radiofrequency ablation in the treatment of liver tumors under the guidance of contrast-enhanced ultrasound[J]. Journal of Clinical Ultrasound in Medicine, 2020,22(9):647-650. DOI: 10.16245/j.cnki.issn1008-6978.2020.09.002.
Objective To investigate the clinical value of contrast-enhanced ultrasound(CEUS)guided monopolarradiofrequency ablation(M-RFA)and no-touch multipole radiofrequency ablation(No-touch RFA)in the treatment of livertumors.Methods A total of 94 cases of liver tumors patients treated with M-RFA and No-touch RFA under the guidance ofreal-time CEUS in our hospital were enrolled
including 44 cases of M-RFA group and 50 cases of No-touch RFA group.Thepostoperative lesion inactivation range
inactivation rate and lab examination indexes before and after treatment were compared.The patients were followed up regularly for 24 months and the tumor-free survival rate was recorded.Results After treatment
the average inactivation range of the M-RFA group and the No-touch RFA group by CEUS were 38.36 mm×31.31 mm and46.70 mm×35.82 mm
respectively.The total inactivation rate of the M-RFA group and the No-touch RFA group were 90.9%(40/44)and 98.00%(49/50)
respectively.The difference was statistically significant(P<0.05).After treatment
21 AFP positivepatients in the M-RFA group
12 cases were transferred into negative AFP and serum AFP level in 9 cases decreasedsignificantly 1 month after treatment. 20 AFP positive patients in the No-touch RFA group
14 cases were transferred intonegative AFP and serum AFP level in 6 cases decreased significantly 1 month after treatment.The difference of preoperative andpostoperative AFP levels between the two groups were statistically significant(both P<0.05).Regular follow-up to 24 months after treatment showed that the tumor-free survival rate was 47.72%(21/44)in the M-RFA group and 68.00%(34/50)in theNo-touch RFA group
and the difference was statistically significant(P=0.041).Conclusion CEUS guided No-touch RFAtreatment of liver tumors is helpful to improve the tumor inactivation rate with significant efficacy and high tumor-free survivalrate