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Objective:Based on the statistical data of the comprehensive evaluation of professional degree graduate students by the guiding physicians, to conduct an empirical study on the quality of the enrollment of master of stomatology professional degree graduate students.Methods:A total of 67 master of stomatology professional degree graduate students from Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University were comprehensively evaluated by their guiding physicians when they went out the department. SPSS 25.0 software was used for t test and variance analysis. Results:The average score of 67 students was (91.39±3.55) points. There was good reliability and validity for the comprehensive evaluation index. Among the methods of promotion and exemption, unified examination, 7-year transfer to "5 + 3" of our school and enrollment of students from Hong Kong, Macao and Taiwan regions, the comprehensive evaluation total score of 7-year transfer to "5 + 3" of our school was the highest. The comprehensive evaluation results of the students with high initial scores were slightly higher than those students with low scores. The students who studied in the "Double First-class" universities and were with the fourth round of subject assessment grade A and grade B had better performances.Conclusion:We should attach importance to enrollment quality, through various channels to attract quality students and actively explore ways to improve the quality of graduate students. Meanwhile, we should make efforts to strengthen training quality and to build scientific comprehensive evaluation system for specialized degree graduate students. The connotation of "medicine-education collaboration" will be further deepened. And the training and development of oral medicine applied high-level medical talents will be promoted.
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Objective:To introduce estimate a technique ofregulative aperture methodin locating lung block in TBI.Methods:We excavated a square aperture in the foam template which is used to fasten the lung block,and the projection formed by the field light through the aperture is used as the reference for adjusting the location of the lung block.Measure the windage of lung shades and block shades by X-ray,in 8 patients.Results:windage values of head-feet and left-right orientations are smaller inregulative aperture modethan in conventional method respectively.Conclusions:Regulative aperture methodis an easy and effective technique to improve lung shielding precision in TBI.
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Objective:To compare the dosimetric differences of the planning target volume(PTV)and the organs at risk(OAR)for postoperative patients with cervical cancer on intensity-modulated radiotherapy(IMRT)and conventional 4 fields(4F)or 2 fields(2F)radiotherapy.Methods:Six postoperative patients with cervical cancer were chosen randomly.The next steps were CT scan,PTV and OAR contouring.The treatment protocols were designed into conventional 4F,2F and IMRT by TPS.Finally,the doso distribution and DVH were compared.Results:About the conformability of PTV,IMRT showed a significantly superior dose distribution over conventional 4F(P=0.015),and conventional 4F was superior to 2F(P=0.043).IMRT as compared with conventional 4F or 2F protocols,the received dose of the 50%volume of bladder was reduced by 25.8%and 27.5%,the rectum was reduced by 12%and 14.3%,the small intestine was reduced by 36.5%and 50%.But the differences of the femoral head(left & right)and the ilium have no statistical significance.Conclusion:in postoperative radiotherapy for cervical cancer,IMRT have Inore dosimetric advantages than conventional radiotherapy.
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Objective To evaluate the therapeutic effects of stereotactic conformal radiotherapy (SCRT) on 30 cases of thalamic and brainstem tumors. Methods During the period from October 1997 to April 2002, 30 patients, 19 male and 11 female, with an age range from 13 to 68 years (an average of 37 years) suffering from thalamic and brainstem tumors, were treated in our institute. The size of the tumors ranged from 3.5 cm 3 to 73.0 cm 3 with an average of 16.5 cm 3. Eight cases were treated with SCRT after regular radiotherapy, 7 cases were treated with SCRT after surgical resection of the tumor and 15 cases were treated with SCRT only. Results The clinical symptoms of all the patients disappeared thoroughly. Their KPS was significantly improved (P