本文就多媒体远程教学系统中连续媒体实时传输问题进行了分析,着重对流化技术进行了深入的探讨。根据网络教学的需要,以Microsoft的Media Server Service为内核,设计了一个应用于Internet的多媒体远程教学系统,对其中的连续多媒体流实...本文就多媒体远程教学系统中连续媒体实时传输问题进行了分析,着重对流化技术进行了深入的探讨。根据网络教学的需要,以Microsoft的Media Server Service为内核,设计了一个应用于Internet的多媒体远程教学系统,对其中的连续多媒体流实时传输系统的设计进行了全面的介绍,并通过模拟试验的数据,对系统的性能进行了评价。展开更多
Aim: To analyse and assess the effect of dose rate of 192ir-source strength on late complications and local control rate during treatment of carcinoma cervix. Materials and Methods: One hundred and two cases of carcin...Aim: To analyse and assess the effect of dose rate of 192ir-source strength on late complications and local control rate during treatment of carcinoma cervix. Materials and Methods: One hundred and two cases of carcinoma cervix were included in the study. All patients were treated with a curative intent with radical dose of radiation as per the department protocol. All patients were treated with both EBRT plus Brachytherapy with Inj. Cisplatin 40 mg/m2 weekly. Patients were divided into 2 groups based on activity i.e. group A (10-6Ci) and group B (5-2Ci). After brachytherapy, point doses were analysed based on ICRU 38 recommendations. During follow up, morbidities were evaluated using RTOG grading system. Results: There was no difference in local control and distant metastasis in both groups after six months of follow up. Late Complications were comparable in both groups irrespective of source strength. Bladder complications were minimal with no significant difference in both study groups. Further Patients were divided into four groups i.e. BED of ICRU rectal point (3 and ≥100 Gy3) and source strength (10-6Ci and 5-2Ci), when BED was >100 Gy3 resulted in higher late rectal complication rate (P 3. Conclusion: This study suggests that change in source activity did not make a difference in local control, late rectal and bladder morbidities at 6 months of follow up. Longer follow up is required to assess long term results and morbidities.展开更多
文摘本文就多媒体远程教学系统中连续媒体实时传输问题进行了分析,着重对流化技术进行了深入的探讨。根据网络教学的需要,以Microsoft的Media Server Service为内核,设计了一个应用于Internet的多媒体远程教学系统,对其中的连续多媒体流实时传输系统的设计进行了全面的介绍,并通过模拟试验的数据,对系统的性能进行了评价。
文摘Aim: To analyse and assess the effect of dose rate of 192ir-source strength on late complications and local control rate during treatment of carcinoma cervix. Materials and Methods: One hundred and two cases of carcinoma cervix were included in the study. All patients were treated with a curative intent with radical dose of radiation as per the department protocol. All patients were treated with both EBRT plus Brachytherapy with Inj. Cisplatin 40 mg/m2 weekly. Patients were divided into 2 groups based on activity i.e. group A (10-6Ci) and group B (5-2Ci). After brachytherapy, point doses were analysed based on ICRU 38 recommendations. During follow up, morbidities were evaluated using RTOG grading system. Results: There was no difference in local control and distant metastasis in both groups after six months of follow up. Late Complications were comparable in both groups irrespective of source strength. Bladder complications were minimal with no significant difference in both study groups. Further Patients were divided into four groups i.e. BED of ICRU rectal point (3 and ≥100 Gy3) and source strength (10-6Ci and 5-2Ci), when BED was >100 Gy3 resulted in higher late rectal complication rate (P 3. Conclusion: This study suggests that change in source activity did not make a difference in local control, late rectal and bladder morbidities at 6 months of follow up. Longer follow up is required to assess long term results and morbidities.
