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目的:研究并分析造影增强超声在射频治疗肝肿瘤中的应用效果。方法:选择昆明医科大学附属甘美医院于2012年1月到2013年3月收治的20例肝肿瘤患者为研究对象,针对两组患者治疗疗效进行详细记录与分析,在实施治疗前使用造影增强超声观察患者病灶部位、数量与大小,再行RFA治疗,治疗结束后,根据影像学结果判定肿瘤残留与灭活情况,观察病灶内部与周围情况,并实施CT检查,对比CT、造影增强超声与常规彩超诊断结果。结果:在RFA前27个病灶之中,图像资料记录了病灶的具体情况,27个病灶造影之后,15个病灶基本无变化,12个病灶增大,无病灶减小。在造影后共计有11个微小卫星灶,直径为3~12mm,其造影后病灶变化与造影前肿瘤晕征与边界密切相关。在实施RFA治疗后,利用增强CT、常规彩超与造影增强超声观察21个病灶门脉期、动脉期与实质期表现,分为完全灭活与肿瘤残留两种情况,增强CT、常规彩超与造影增强超声诊断准确率分别为95.2%、66.7%与95.2%,增强CT、造影增强超声诊断准确率显著高于常规彩超,上述数据组间比较差异显著(p<0.05),差异有统计学意义。结论:造影增强超声评价RFA治疗肝肿瘤效果理想,准确率高,能够为消融治疗提供准确的依据,值得在临床中进行推广和使用。
Objective: To study and analyze the application of contrast-enhanced ultrasound in radiofrequency ablation of liver tumors. Methods: Twenty patients with liver cancer who were treated in Ganmei Hospital Affiliated to Kunming Medical University from January 2012 to March 2013 were selected as the study objects. The curative effect of the two groups was recorded and analyzed in detail. Before operation, contrast-enhanced ultrasound Observe the location of the lesion, the number and the size of the lesion, and then perform the RFA treatment. After the treatment is finished, the tumor remains and inactivation is judged according to the radiological findings, the internal and surrounding lesions are observed, and CT examination is performed. Contrast CT, contrast enhanced ultrasound and routine Color Doppler ultrasound diagnosis results. Results: Among the 27 lesions before RFA, the imaging data recorded the specific conditions of lesions. After 27 lesions were imaged, there were almost no changes in 15 lesions, 12 lesions increased, and no lesions were reduced. A total of 11 micro-satellite lesions after angiography, diameter of 3 ~ 12mm, the change of its lesion after angiography and tumor before the halo syndrome and the boundaries are closely related. After the implementation of RFA treatment, the use of enhanced CT, conventional ultrasound and contrast enhanced ultrasound were observed 21 lesions portal phase, arterial phase and parenchymal performance, divided into complete inactivation and tumor residual two cases, enhanced CT, conventional ultrasound and contrast The diagnostic accuracy of enhanced ultrasound was 95.2%, 66.7% and 95.2% respectively. The accuracy of enhanced CT and contrast enhanced ultrasound was significantly higher than that of conventional color Doppler ultrasound. There was significant difference between the above data sets (p <0.05), the difference was statistically significant. Conclusion: Contrast enhanced ultrasound is an effective and accurate method for the evaluation of RFA in the treatment of liver tumors. It can provide an accurate basis for ablation therapy and is worthy of popularization and use in clinical practice.