This paper analyzes and summarizes the operational performance of four medical linear accelerators and a heli-cal tomotherapy system(Tomo)at a hospital in Guangzhou.We have used the real-time recorded data from the radiotherapy full-process information management system,MOSAIQ Integration Platform(MIP),over the past five years.The analysis includes assessing the social service capacity and adaptability to social demand of large radiotherapy equipment by examining trends and characteristics in the types and numbers of patients treated by different technical categories of equipment.It also evaluates the e-conomic rationality of various equipment types based on their short-term and medium-to-long-term cost-effectiveness characteristics and trends.Additionally,the paper provides references for the renewal and performance assessment of large radiotherapy equip-ment in hospitals,integrating the development trends of radiotherapy technology,changes in patient needs,and the social and e-conomic benefits of different equipment types.

This paper analyzes and summarizes the operational performance of four medical linear accelerators and a heli-cal tomotherapy system(Tomo)at a hospital in Guangzhou.We have used the real-time recorded data from the radiotherapy full-process information management system,MOSAIQ Integration Platform(MIP),over the past five years.The analysis includes assessing the social service capacity and adaptability to social demand of large radiotherapy equipment by examining trends and characteristics in the types and numbers of patients treated by different technical categories of equipment.It also evaluates the e-conomic rationality of various equipment types based on their short-term and medium-to-long-term cost-effectiveness characteristics and trends.Additionally,the paper provides references for the renewal and performance assessment of large radiotherapy equip-ment in hospitals,integrating the development trends of radiotherapy technology,changes in patient needs,and the social and e-conomic benefits of different equipment types.

Hematopoietic stem cell transplantation(HSCT)patients may develop cytomegalovirus encephalitis,a rare but life-threatening complication with a mortality rate exceeding 90％.Cytomegalovirus encephalitis is rare and does not have specific clinical manifestations,which makes clinical diagnosis more difficult.This article reports a pediatric case of acute lymphoblastic leukemia(ALL)with early onset(81 d after transplantation)cytomegalovirus encephalitis after HSCT,with palpitations presenting as the initial symptom.The patient exhibited rapid clinical progression and the treatment was ineffective.This case report can help clinicians gain further understanding of the high-risk factors and clinical features of central nervous system complications following HSCT.When encountering unexplained tachycardia,clinicians should still be vigilant for the possibility of intracranial infection even in the absence of typical neurological manifestations associated with encephalitis.Early recognition and management may help improve the outcomes of such patients.

China's research of health economics in post-SARS times faces at least three challenging problems. The first problem is to improve as soon as possible its participation in the important decisions about health economy and exert its influence on the issues of health economy. The second one is to summarize and appraise the case of struggling-against-SARS comprehensively and thoroughly so as to accelerate theoretical creation and the subject building of health economics. The third one is that it should lead our country's economy construction from materialism economy to humanism economy, and offer theoretic supports for removing the disparity between the public's richness of material life and their poverty of health.