【摘要】 目的 研究两种不同的衰减系数转换方法对正电子发射计算机断层显像/计算机体层扫描（PET/CT） 标准摄取值（SUV）测量值的影响。 方法 2009年11-12月，从经过PET/CT氟代脱氧葡萄糖（FDG）显像患者中选取20例，其口腔中均有金属假牙。以四段转换法和二段转换法重建全身衰减校正断层图像。分别选取3种高密度区域和7种低密度区域，测量其最大SUV和平均SUV，比较两种转换方法SUV测量值。 结果 平均SUV：二段转换法的3种高密度区域SUV降低，在7种低密度区域中，1种区域增高，1种区域降低（P值均lt;0.05）。最大SUV：二段转换法的2种高密度区域的SUV降低，在7种低密度区域中，1种区域增高，2种靠近高密度组织的区域降低（P值均lt;0.05）。 结论 二段转换法能降低高密度区域的SUV，可用于减小体内金属植入物和CT对比剂造成的过度校正。【Abstract】 Objective To explore the effect of two attenuation correction algorithms on PET/CT SUV measurement. Methods From November to December 2009, the PET Slice of 20 patients with metallic dental implant were reconstructed with four-and two-section algorithms respectively. Mean SUV and maximum SUV were measured in three high-density areas and 7 low-density areas. Paired t test were performed to compare the differences. Results Mean SUV: two-section algorithm produced significantly lower SUV in all the three high-density areas; in the 7 low-density areas, SUV increased obviously in one area and decreased apparently in one area (Plt;0.05). Maximum SUV: two-section algorithm produced significantly lower SUV in two high-density areas, SUV increased obviously in one area and decreased apparently in two areas which was adjacent to the high density areas (Plt;0.05). Conclusion Two-section algorithm produces lower SUV measurement value than the four-section algorithm does, and it is useful in PET/CT studies for patients with metallic dental implant and when CT contrast is used.
After Wenchuan earthquake on May 12, West China Medical School/ West China Hospital of Sichuan University organized a youth volunteer team for earthquake rescue and relief. A volunteer network was formed and relevant service regulations were formulated immediately. Volunteers have played an important role in post-earthquake evacuation of patients, emergency reception, ward care, on-call service, a service to help people find family members, telecommunications and some other major tasks.
Coronavirus disease 2019 epidemic is a serious and infectious public health event that causes physical damage and may also have an impact on mental health. West China Hospital of Sichuan University combines the internet hospital platform with the traditional telephone model, establishes a new coronavirus disease 2019 intervention integration platform, and builds a new “four-in-one” medical service system, which contains epidemic consultation, psychological consultation, self-evaluation and home prevention and control. It has established a way for the public to communicate with professional, reduced the spread of coronavirus disease 2019 in space, and effectively carried out psychological decompression and comfort work, disseminated the knowledge of fighting coronavirus disease 2019, and provided medical advice. This article mainly introduces the out-of-hospital psychological intervention model of West China Hospital of Sichuan University during the coronavirus disease 2019 epidemic, and aims to provide a reference for exploring the psychological intervention methods for major public health emergencies.
The number of clinical guidelines developed and published in different countries is increasing worldwide. Too many guidelines do not remain in regular use, even though the aim is to implement them in clinical practice. The scientific validity and reliability of the guidelines need to be reviewed. Here is a case presented to show how to optimally use the evidence-based guideline to improve clinical decision making.
By analyzing the current situation and problems of China’s precision healthy poverty alleviation, combining the current situation of poverty alleviation areas and its own clinical and regional advantages, West China Hospital of Sichuan University explores a practical “West China Way” to solve the healthy poverty problem. We insist on demand orientation, build the top-level design, and implement precise policies. Starting with the promotion of health screening, we actualizes hospital management, multi-disciplinary collaboration, integrated medical care construction according to regional needs, “double-group” style assistance, stratified and graded training, and telemedicine education. As the combination of “transfusion” and “hematopoiesis”, we help the local areas to build modern systems of hospital management, technology, and human resource.
Objective To comparatively analyze the rationality of emergency medication after Wenchuan earthquake with that after Lushan earthquake in West China Hospital of Sichuan University, based on the use of medicine of the victim’s disease spectrum. Method By using Excel, defined daily dose system (DDDs) and drug utilization index (DUI) were used as the evaluation indexes to analyze the rationality of emergency medication in West China Hospital of Sichuan University within one month after Wenchuan earthquake and Lushan earthquake. Results Within one month after Wenchuan and Lushan earthquake, there were 1 839 and 488 victims treated in the hospital, respectively. Within one month after the two earthquakes, the variation tendency of DDDs of drugs and number of victims was consistent, and the consistency was better in Lushan earthquake than that in Wenchuan earthquake. Among the 60 drugs which DDDs were ranked top five in their pharmacological class (top ten for antimicrobials) in Wenchuan earthquake, the majority of them were injections (injections vs. non-injections: 70.0% vs. 30.0%); the results showed that the medication (DUI=1) only accounted for 10.0%, the medication (DUI<1) accounted for 28.3%, which implied that the use of drugs was insufficient, the medication (DUI>1) accounted for 61.7%, which implied that drugs were overused; the average of DUI was 1.61. And in Lushan earthquake, injections also accounted for a larger proportion than non-injections (63.3%vs. 36.7%); the results showed that the medication (DUI=1) accounted for 15.0%, the medication (DUI<1) accounted for 38.3%, the medication (DUI>1) accounted for 46.7%; the average of DUI was 1.30. Conclusions Base on the DUI, we draw the conclusion that the rationality of emergency drug use and the timeliness of emergency drug supply were better in Lushan earthquake than those in Wenchuan earthquake. But the rationality of using the DUI, which is an evaluation index for normal conditions, to evaluate the emergency conditions still needs to be further verified.
West China Hospital of Sichuan University as a national-level regional medical center in the western part of the country, focused on the actual situation in Tibet and actively carried out precision health poverty alleviation work. Guided by " precision”, the hospital has built a close-knit medical association – Hospital of Tibet People’s Government in Chengdu Office, and through the comprehensive improvement of medical care, teaching, scientific research, and management, creates a medical and health service system with Tibet characteristics. Combining " blood transfusion” and " hematopoietic” to build a " West China Model” for precision health poverty alleviation, West China Hospital of Sichuan University fully demonstrates the public welfare and responsibility of a national-level regional medical center, and constantly exerts regional radiation and leading role, promotes the medical and health service system continuous improvement in Tibet.
Objective To provide baseline date for further research by retrospectively investigating the disease constitution of over-60-year old patients in the West China Hospital of Sichuan University in 2011. Methods The information of over-60-year old outpatients was extracted from HIS and their diagnoses were classified by ICD-10. The data of single disease among top 3 categories of diseases were rearranged and analyzed by Excel software. Results The total of over-60-year old outpatients was 895 123 person-time in 2011, accounting for 19.65%, including 716 826 person-time in specialist outpatient clinics. The specialist diagnoses of 683 491 person-time could be classified by ICD-10, accounting for 95.35% of specialist outpatients. The top 12 diseases were neoplasm, circulatory, digestive, factors influencing health status and contacting with health services, respiratory, musculoskeletal system and connective tissues, nervous, eyes, symptoms/signs and abnormal clinical and laboratory findings, non-classified, mental and behavioral disorders, endocrine, and genitourinary system diseases, and the cumulative constituent ratio was 92.96%. The main pathogenic sites of neoplasm were bronchus and lung (21.98%), esophagus (8.66%), stomach (8.10%), rectum (7.37%), prostate (5.86%), and liver and intrahepatic bile ducts (5.55%), with a cumulative constituent ratio of 57.72%. The main disease burden in circulatory system was hypertension (39.50%), chronic ischaemic heart disease (11.17%), and cerebral infarction (9.70%), and the cumulative constituent ratio was 60.38%. While the main disease burden in digestive system was gastritis and duodenitis (24.98%), other diseases of digestive system (9.26%), and other diseases of liver (8.90%), and the cumulative constituent ratio was 43.13%. There were more female than male among the over-60-year old outpatients (50.67% vs. 49.33%), and male was higher than female only in the incidence of neoplasm, respiratory, factors influencing health status and contacting with health services, and genitourinary system diseases. The disease constitution ratio of 60-69 years old patients was 58.21%. The top 3 neoplasm were the malignant tumors in digestive (38.20%), respiratory and intrathoracic organs (24.70%), and lymphoid, haematopoietic and related tissue (11.97%), with a cumulative constituent ratio of 74.87%. Conclusion The top 3 disease burden of over-60-year old outpatients in West China Hospital were neoplasm, circulatory and digestive diseases, which reflects the trend and law of treatment demands of old patients. It needs to deeply analyze the frequency and flow pattern of patients, and to provide evidence for preventing and treating geriatric diseases.