Objective This study aimed to investigate the feasibility,safety,and clinical effect of No Touch liver pedicle microwave ablation(NTLP-MWA).Methods The outcomes of 118 patients diagnosed with hepatocellular carcinoma(...Objective This study aimed to investigate the feasibility,safety,and clinical effect of No Touch liver pedicle microwave ablation(NTLP-MWA).Methods The outcomes of 118 patients diagnosed with hepatocellular carcinoma(HCC)between 2014 and 2015 were retrospectively analyzed.Patients were divided into three groups.In group A,35 patients underwent ultrasound-guided NTLP-MWA,27 in Group B were treated with routine microwave ablation(RMWA),and 56 in group C underwent anatomic hepatectomy(AH).The preoperative basic data,intraoperative data,and postoperative data were analyzed among the three groups.Results The treatment time,intraoperative blood loss,and postoperative liver function(alanine transaminase)in the NTLP-MWA and RMWA groups were significantly different from those in the AH group(all P<0.005).There was no difference in the complete elimination rate and local recurrence within 1 year among the three groups.Treatment was not an independent risk factor for early postoperative recurrence.There was no significant difference in the 5-year overall survival rates among the three groups.Conclusion NTLP-MWA is safe and reliable,in accordance with the principles of oncology treatment,and worth further promotion in clinical practice.展开更多
目的分析混合迭代重建技术(iDose~4)在CT引导微波消融(MWA)治疗肝癌中对图像质量和患者的辐射剂量的影响。方法随机收集205例CT引导下MWA手术患者,根据重建方式和毫安值的不同分为3组:对照组84例(标准重建+200 mAs)、iDose~4组59例(iDos...目的分析混合迭代重建技术(iDose~4)在CT引导微波消融(MWA)治疗肝癌中对图像质量和患者的辐射剂量的影响。方法随机收集205例CT引导下MWA手术患者,根据重建方式和毫安值的不同分为3组:对照组84例(标准重建+200 mAs)、iDose~4组59例(iDose~4+200 mAs)和低剂量组62例(iDose~4+140 m As),分别记录每例术中进针前、消融前针到位、拔针后3个序列CT图像的客观参数,包括:噪声,用图像的标准差(SD)表示,信噪比(signal to noise ratio,SNR)、对比噪声比(contrast to noise ratio,CNR),整体图像质量的主观评价。并记录以上3个序列每例患者的容积CT剂量指数(CT dose index volume,CTDIvol),总剂量长度乘积(dose-length product,DLP),总有效辐射剂量(effective dose,ED)。结果与对照组对比,iDose~4组进针前、针到位、拔针后3个序列CT图像SD显著较低(P<0.001),SNR、CNR显著较高(P<0.001),主观评价也有优势(P<0.05),CTDIvol,DLP,ED差异均无统计学意义(P>0.05);低剂量组CTDIvol,DLP,ED有明显较低(P<0.001),针到位序列CT图像SD较低(P<0.05)、SNR、CNR较高(P<0.05),主观评价也存在差异(P<0.05),其他2个序列CT图像SD、SNR、CNR、主观评价的差异无统计学意义(P>0.05)。结论i Dose4的运用能够在不增加患者辐射剂量的情况下,明显提高肝MWA术中CT图像的质量。另外,在结合低毫安扫描时,能大幅降低患者辐射剂量的同时,还能相对提高存在有消融针的CT图像的质量。展开更多
文摘Objective This study aimed to investigate the feasibility,safety,and clinical effect of No Touch liver pedicle microwave ablation(NTLP-MWA).Methods The outcomes of 118 patients diagnosed with hepatocellular carcinoma(HCC)between 2014 and 2015 were retrospectively analyzed.Patients were divided into three groups.In group A,35 patients underwent ultrasound-guided NTLP-MWA,27 in Group B were treated with routine microwave ablation(RMWA),and 56 in group C underwent anatomic hepatectomy(AH).The preoperative basic data,intraoperative data,and postoperative data were analyzed among the three groups.Results The treatment time,intraoperative blood loss,and postoperative liver function(alanine transaminase)in the NTLP-MWA and RMWA groups were significantly different from those in the AH group(all P<0.005).There was no difference in the complete elimination rate and local recurrence within 1 year among the three groups.Treatment was not an independent risk factor for early postoperative recurrence.There was no significant difference in the 5-year overall survival rates among the three groups.Conclusion NTLP-MWA is safe and reliable,in accordance with the principles of oncology treatment,and worth further promotion in clinical practice.
文摘目的分析混合迭代重建技术(iDose~4)在CT引导微波消融(MWA)治疗肝癌中对图像质量和患者的辐射剂量的影响。方法随机收集205例CT引导下MWA手术患者,根据重建方式和毫安值的不同分为3组:对照组84例(标准重建+200 mAs)、iDose~4组59例(iDose~4+200 mAs)和低剂量组62例(iDose~4+140 m As),分别记录每例术中进针前、消融前针到位、拔针后3个序列CT图像的客观参数,包括:噪声,用图像的标准差(SD)表示,信噪比(signal to noise ratio,SNR)、对比噪声比(contrast to noise ratio,CNR),整体图像质量的主观评价。并记录以上3个序列每例患者的容积CT剂量指数(CT dose index volume,CTDIvol),总剂量长度乘积(dose-length product,DLP),总有效辐射剂量(effective dose,ED)。结果与对照组对比,iDose~4组进针前、针到位、拔针后3个序列CT图像SD显著较低(P<0.001),SNR、CNR显著较高(P<0.001),主观评价也有优势(P<0.05),CTDIvol,DLP,ED差异均无统计学意义(P>0.05);低剂量组CTDIvol,DLP,ED有明显较低(P<0.001),针到位序列CT图像SD较低(P<0.05)、SNR、CNR较高(P<0.05),主观评价也存在差异(P<0.05),其他2个序列CT图像SD、SNR、CNR、主观评价的差异无统计学意义(P>0.05)。结论i Dose4的运用能够在不增加患者辐射剂量的情况下,明显提高肝MWA术中CT图像的质量。另外,在结合低毫安扫描时,能大幅降低患者辐射剂量的同时,还能相对提高存在有消融针的CT图像的质量。