ABSTRACT
Objective To investigate the difference of styrofoam and breast carrier in postposition fixation of intensity-modulated radiotherapy after breast conservative surgery for breast cancer patients.Methods From February 2018 to August 2018,tweenty-four patients with breast cancer in Sun Yet-Sen Memorial Hospital of Sun Yet-sen University were selected for this study,who underwent hypofactionationed radiotherapy after breast conservative surgery with total dose 42.56 Gy/16Fractions.They were randomized into styrofoam test group and breastcarrier control group.Cone beam CT as used to record the positioning error under the directions of left and right (x),head and foot (y),abdomen and back (y) within two groups at the first,third,fifth,seventh,eleventh time before irradiation.Furthermore,the PTV extension margin was calculated and the positioning time of two groups was recorded.Two sets of pendulum errors were analyzed by independent sample T-test,and the outspread value of inter-fractional set up error of the PTV was calculated.Results The errors of the test group and the control group in the direction of x,y,z were as follows:(2.36±1.89) and (2.56±2.05) mm (P=0.49),(1.76± 1.78) and (3.28±2.79) mm (P＜0.05),(1.47± 1.49) and (1.73± 1.81) mm (P=0.28).The extension values of inter-fractional set up error of CTV to PTV were 2.97,2.92,2.21 mm and 3.41,4.09,2.59 mm respectively.The time of single positioning was (3.4± 1.1) and (5.5 ± 3.1) min respectively (P=0.01).Conclusion Styrofoam has better positioning accuracy and efficiency compared with breast carrier.
ABSTRACT
Objective To develop a simple radiotherapy information system for the developments of multiple hospital areas.Methods Using C/S+B/S dual technology architecture,Visual Studio 2015+C#+HTML5+JavaScript+PostgreSQL9.5 were utilized as the programming tools selected for development.The two-dimensional barcode,intelligent IC card,identity card recognition,face recognition,speech synthesis and other technologies were integrated and applied in the radiotherapy process management.The normal business processes were designed by default automatic processing.Previous multi-step operation was simplified to single-key operation.Results System development was completed and implemented at the end of 2017,which connected the south and north hospital areas.The system not only resolved the problem that required the doctors to manually input or make telephone call for consulting patients' data,but also achieved paperless business process in different departments.The outstanding advantage was reflected in the aspects of intelligence and optimization.Approximately 95％ of the normal flows could be completed by single-key automatic processing,and the remaining 5％ requiring special operations (such as,modification or deletion,etc.) were prompted and restricted to ensure data security and system stability.Conclusion The application of this system improves the level of information management in the departments and saves the cost of supplies and human resources.
ABSTRACT
In view of the problems of information systems in the development and application of software, system configurations, and the maintenance and management of computers, the author puts forward the countermeasure of establishing a hospital directors inquiries centered information network management system so as to enhance the scientific management level of a hospital.