Feasibility of Automatic Treatment Planning in Intensity-modulated Radiotherapy of Nasopharyngeal Carcinoma / 生物医学工程学杂志

Intensity-modulated radiotherapy planning for nasopharyngeal carcinoma is very complex. The quality of plan is often closely linked to the experience of the treatment planner. In this study, 10 nasopharyngeal carcinoma patients at different stages were enrolled. Based on the scripting of Pinnacle 9. 2 treatment planning system, the computer program was used to set the basic parameters and objective parameters of the plans. At last, the nasopharyngeal carcinoma intensity-modulated radiotherapy plans were completed automatically. Then, the automatical and manual intensity-modulated radiotherapy plans were statistically compared and clinically evaluated. The results showed that there were no significant differences between those two kinds of plans with respect to the dosimetry parameters of most targets and organs at risk. The automatical nasopharyngeal carcinoma intensity-modulated radiotherapy plans can meet the requirements of clinical radiotherapy, significantly reduce planning time, and avoid the influence of human factors such as lack of experience to the quality of plan.

The treatment for calcaneus fracture involving talocaneal joint with AO titanium plate / 中国基层医药

Objective The treatment of open reduction and internal fixation with AO titanium plate was applied for calcaneus fracture involving talocalcaneal joint. Methods 36 patients were performed with this method, the Bolder angle and Gissane angle of calcaneus were compared before and after operation. The patients were followed up for an average period of 11.2 months. Results All the patients were well healed, the average data of Bolder angle was 22. 31° after operation while - 7. 20° before operation. Conclusion The treatment of open reduction and internal fixation with AO titanium plate is a kind of good method for calcaneus fracture involving talocalcaneal joint. It can not only resume the Bohler angle and Gissane angle, but also resume length, breadth, height of calcaneus. As a result, it can achieve anatomical reduction and patients can do exercises as soon as possible.