A software platform integrated of radiation treatment planning system and navigation system has been developed for a newly-developed snake robot. This platform is developed in a module-plugin form based on 3D Slicer medical image visualization and analysis application platform and an open-source toolkit SlicerRT. The platform realized function modules of image access and visualization, image segmentation, radiation path planning, treatment planning evaluation and optical navigation, and has provided the snake robot an extensible software experiment platform. It is beneficial for the brachytherapy research work and experiments.

Objective:To understand the status quo of autonomous learning ability of nurses in ClassⅢ Grade A psychiatric hospitals and analyze its influencing factors, so as to provide a basis for further improvement of nurse specialist education.Methods:Using the convenient sampling method, a questionnaire survey was conducted among 910 nurses in 5 ClassⅢ Grade A psychiatric hospitals in Zhejiang province from July to October 2019. The survey methods included General Information Questionnaire and Self-Learning Ability of Nursing Staff Evaluation Scale. Multiple linear regression analysis was carried out on the influencing factors of autonomous learning ability of nurses. A total of 910 questionnaires were issued and 904 valid questionnaires were recovered.Results:The total score of Self-Learning Ability of Nursing Staff Evaluation Scale of 904 nurses was (118.43±19.14) , the score of self-motivation belief dimension was (49.49±8.32) and score of the self-evaluation dimension was (14.05±2.39) . There were statistically significant differences in scores of autonomous learning ability of nurses among different genders, working departments, initial and final education background, employment method and current post ( P<0.05) . The results of multiple linear regression analysis showed that gender, initial education, current post and work department were the main factors affecting the autonomous learning ability of nurses, which jointly explained 40.1% of the total variation of the autonomous learning ability of nurses in psychiatric hospitals ( R2=0.401, F=15.685, P<0.001) . Conclusions:The self-learning ability of nurses in psychiatric hospitals is at a general level. Nursing managers should pay attention to the group of nurses with low self-learning ability, and carry out multi-level, multi-form and multi-channel on-the-job training methods for nurses with different educational backgrounds and posts to promote the improvement of self-learning ability and overall quality of nurses.