ABSTRACT
Objective To evaluate the value of CT-guided self-made positioning puncture device in radiofrequency ablation of liver tumors. Methods A total of 78 tumor foci from 64 patients with primary hepatocellular carcinoma treated with radiofrequency ablation from January 2010 to November 2014 were analyzed. Among them, 13 tumor diameters were 3.5-5.0 cm and 65 < 3.5 cm. The location and puncture of tumor lesion were performed by CT-guided positioning device, and the effect of puncture and lesion was evaluated by using tumor precise radiotherapy planning system. Radiofrequency ablation of tumor lesion was performed by tumor radiofrequency treatment system. Results The puncture error of all tumors in the space was 1-4 mm, the average puncture error was 2.9 mm, the complete ablation rate of tumor lesions was 93.59%(73/78), and there was no serious complication in the course of treatment. After treatment, the alpha-fetoprotein and liver function were significantly improved, and the differences were statistically significant (both P<0.05). At 1 month after surgery, CT found that no tumor and ablation was enhanced, at 3 months after surgery, CT showed that the arterial phase of all the tumor lesions did not strengthen, all of them were low-density lesions, no ablation recurred. The recurrence rates of 1, 2, 3, and 4 years after treatment were 17.9 %, 29.9 %, 45.9 % and 55.0 %. Conclusion CT-guided radiofrequency ablation with self-made puncture device is effective in the diagnosis of primary liver cancer, ablation is complete and safe.
ABSTRACT
Objective To analyze features and diagnostic value of imageology of the early peripheral lung carcinoma.Methods The dynamic changes of early peripheral lung carcinoma confirmed pathologically in 21 cases were retrospectively analysed.The imaging features in combination with pathological data were also analysed.Results All of 21 cases,16 cases were the tubercle type(76.1%),3 cases were the spot type(14.3%) and 2 cases were the vacuole type(9.6%).Conclusion The typical imaging features of early peripheral lung carcinoma are few,the dynamic observation of the disease is of relatively high value in diagnosis.