Objective:To provide guidelines for the prevention of post-stroke dementia,we investigated whether stroke patients were aware of post-stroke dementia and their level of dementia-related knowledge.Methods:Five dementia...Objective:To provide guidelines for the prevention of post-stroke dementia,we investigated whether stroke patients were aware of post-stroke dementia and their level of dementia-related knowledge.Methods:Five dementia-related questions were designed.A field survey was conducted in a questionand-answer method using the designed questions.The surveys assessed 3000 stroke patients(2 weekse6 months after stroke attacks)from 14 hospitals/clinical centers in 7 provinces and cities across China.Results:Among 3000 stroke patients,80.5%had heard of dementia,39.1%knew that stroke can lead to dementia,55.7%believed dementia can be prevented,50.8%thought dementia can be cured,and only 8.8%had ever seen a doctor because of memory deterioration.Then,patients were classified into three groups,including a no cognitive impairment(NCI)group,a mild cognitive impairment(MCI)group,and a mild dementia(MD)group.Among the MCI and MD groups,only 8.7%(75/861)and 9.9%(64/649)of patients,respectively,had ever seen a doctor because of memory deterioration.According to our results,patients with a higher level of cognitive impairment had a lower awareness of dementia(P<.001).Conclusion:The awareness of dementia in stroke patients in China is low,and the consultation rate is even lower.Moreover,patients with a higher level of cognitive impairment have a lower awareness of dementia.To improve public awareness and improve prevention,more emphasis should be put on education regarding post-stroke dementia.Routine cognitive function screening should be conducted on stroke patients as an effective way to assess dementia.展开更多
Nuclear magnetic resonance (NMR) has many advantages, such as little testing time, no harm to rock specimen, and is widely used in the measurement of reservoir pore structure. 3D printing also has many advantages, suc...Nuclear magnetic resonance (NMR) has many advantages, such as little testing time, no harm to rock specimen, and is widely used in the measurement of reservoir pore structure. 3D printing also has many advantages, such as repeating the printing the same attributes samples, forming sample by known rock pore structure, adding different pores or fractures to sample. For the study of fractured reservoir provides a new train of thought by combining NMR and 3D printing. Nuclear magnetic core analysis is an important work in the study of core, using a T2 spectrum at a certain echo time can also be found in the core fractures. The study, by CT scans to establish reservoir pore structure, based on the basic of adding different attitude fracture forming four fracture characteristics of rock sample, using 3D printing for solid sample, through the analysis of the nuclear magnetic resonance (NMR) of these sample, get the response characteristics of fracture characteristics on the T2 curve, the quantitative calculation of fracture porosity of rock sample, the result accord with to establish the model of fracture porosity is very good. For the study of fractured oil and gas reservoir development the new field.展开更多
基金This work was supported by the TCM Special Research Projects Program 2010,China Ministry of Science and Technology(201007002)the TCM Special Research Projects Program 2014Ministry of Science and Technology(201407001-8).
文摘Objective:To provide guidelines for the prevention of post-stroke dementia,we investigated whether stroke patients were aware of post-stroke dementia and their level of dementia-related knowledge.Methods:Five dementia-related questions were designed.A field survey was conducted in a questionand-answer method using the designed questions.The surveys assessed 3000 stroke patients(2 weekse6 months after stroke attacks)from 14 hospitals/clinical centers in 7 provinces and cities across China.Results:Among 3000 stroke patients,80.5%had heard of dementia,39.1%knew that stroke can lead to dementia,55.7%believed dementia can be prevented,50.8%thought dementia can be cured,and only 8.8%had ever seen a doctor because of memory deterioration.Then,patients were classified into three groups,including a no cognitive impairment(NCI)group,a mild cognitive impairment(MCI)group,and a mild dementia(MD)group.Among the MCI and MD groups,only 8.7%(75/861)and 9.9%(64/649)of patients,respectively,had ever seen a doctor because of memory deterioration.According to our results,patients with a higher level of cognitive impairment had a lower awareness of dementia(P<.001).Conclusion:The awareness of dementia in stroke patients in China is low,and the consultation rate is even lower.Moreover,patients with a higher level of cognitive impairment have a lower awareness of dementia.To improve public awareness and improve prevention,more emphasis should be put on education regarding post-stroke dementia.Routine cognitive function screening should be conducted on stroke patients as an effective way to assess dementia.
文摘Nuclear magnetic resonance (NMR) has many advantages, such as little testing time, no harm to rock specimen, and is widely used in the measurement of reservoir pore structure. 3D printing also has many advantages, such as repeating the printing the same attributes samples, forming sample by known rock pore structure, adding different pores or fractures to sample. For the study of fractured reservoir provides a new train of thought by combining NMR and 3D printing. Nuclear magnetic core analysis is an important work in the study of core, using a T2 spectrum at a certain echo time can also be found in the core fractures. The study, by CT scans to establish reservoir pore structure, based on the basic of adding different attitude fracture forming four fracture characteristics of rock sample, using 3D printing for solid sample, through the analysis of the nuclear magnetic resonance (NMR) of these sample, get the response characteristics of fracture characteristics on the T2 curve, the quantitative calculation of fracture porosity of rock sample, the result accord with to establish the model of fracture porosity is very good. For the study of fractured oil and gas reservoir development the new field.
