目的:探讨体外动态心脏模型与基于案例和问题学习(case and problem-based learning,CPBL)教学方法相结合在心脏超声科住院医师规范化培训(下文简称住培)中的应用效果。方法:采用试验对照研究方法,选取在南京医科大学附属无锡第二医院...目的:探讨体外动态心脏模型与基于案例和问题学习(case and problem-based learning,CPBL)教学方法相结合在心脏超声科住院医师规范化培训(下文简称住培)中的应用效果。方法:采用试验对照研究方法,选取在南京医科大学附属无锡第二医院心脏超声科进行住培的80名学员为研究对象。将2019年9月至2020年8月入科的40名学员设为试验组,2018年9月至2019年8月入科的40名学员设为对照组。试验组接受体外动态心脏模型与CPBL相结合的教学方法,对照组接受常规教具与CPBL相结合的教学方法。比较两组学员出科时的考核成绩,并对两组学员进行教学满意度问卷调查。结果:试验组学员的理论考试成绩、读片成绩、操作考核成绩和人文素养成绩分别为(42.72±1.78)分、(43.00±1.91)分、(44.27±2.24)分、(43.37±2.35)分均高于对照组学员的(41.82±1.75)分、(41.55±2.26)分、(43.05±2.64)分、(41.57±2.48)分,其差异均具有统计学意义(均P<0.05)。问卷调查结果显示,试验组学员比对照组学员在"加深理论知识理解"[92.5%(37/40)比75.0%(30/40)]、"培养临床思维能力"[90.0%(36/40)比70.0%(28/40)]、"提高影像读片能力"[92.5%(37/40)比72.5%(29/40)]、"提高上机操作能力"[90.0%(36/40)比67.5%(27/40)]、"提高学习兴趣"[90.0%(36/40)比72.5%(29/40)]和"提高学习效率"[92.5%(37/40)比75.0%(30/40)]方面的选择比例高,差异均具有统计学意义(均P<0.05)。结论:体外动态心脏模型与CPBL相结合的教学方法用于心脏超声科住培,能够调动住院医师的主观能动性,有助于完成住培培养目标、提高住培的教学效果。展开更多
Various steady models for interaction between heart and arterial system have been given in liter- ature,In our recent study,a dynamic principle,i.e.the principle of least cardiac work is proposed,and a dy- namic model...Various steady models for interaction between heart and arterial system have been given in liter- ature,In our recent study,a dynamic principle,i.e.the principle of least cardiac work is proposed,and a dy- namic model for interaction of heart and arterial system is established.Preliminary results of our experiments show that both the principle and the model are consistent with the physiological phenomena.It reveals that the pres- ent analysis may offer a new measure for the study of dynamic process of interaction between heart and arterial system.展开更多
Two cardiac functional models are constructed in this paper. One is a single current model and the other is a current multipole model. Parameters denoting the properties of these two models are calculated by a least-s...Two cardiac functional models are constructed in this paper. One is a single current model and the other is a current multipole model. Parameters denoting the properties of these two models are calculated by a least-square fit to the measurements using a simulated annealing algorithm. The measured signals are detected at 36 observation nodes by a superconducting quantum interference device （SQUID）. By studying the trends of position, orientation and magnitude of the single current dipole model and the current multipole model in the QRS complex during one time span and comparing the reconstructed magnetocardiography （MCG） of these two cardiac models, we find that the current multipole model is a more appropriate model to represent cardiac electrophysiological activity.展开更多
文摘目的:探讨体外动态心脏模型与基于案例和问题学习(case and problem-based learning,CPBL)教学方法相结合在心脏超声科住院医师规范化培训(下文简称住培)中的应用效果。方法:采用试验对照研究方法,选取在南京医科大学附属无锡第二医院心脏超声科进行住培的80名学员为研究对象。将2019年9月至2020年8月入科的40名学员设为试验组,2018年9月至2019年8月入科的40名学员设为对照组。试验组接受体外动态心脏模型与CPBL相结合的教学方法,对照组接受常规教具与CPBL相结合的教学方法。比较两组学员出科时的考核成绩,并对两组学员进行教学满意度问卷调查。结果:试验组学员的理论考试成绩、读片成绩、操作考核成绩和人文素养成绩分别为(42.72±1.78)分、(43.00±1.91)分、(44.27±2.24)分、(43.37±2.35)分均高于对照组学员的(41.82±1.75)分、(41.55±2.26)分、(43.05±2.64)分、(41.57±2.48)分,其差异均具有统计学意义(均P<0.05)。问卷调查结果显示,试验组学员比对照组学员在"加深理论知识理解"[92.5%(37/40)比75.0%(30/40)]、"培养临床思维能力"[90.0%(36/40)比70.0%(28/40)]、"提高影像读片能力"[92.5%(37/40)比72.5%(29/40)]、"提高上机操作能力"[90.0%(36/40)比67.5%(27/40)]、"提高学习兴趣"[90.0%(36/40)比72.5%(29/40)]和"提高学习效率"[92.5%(37/40)比75.0%(30/40)]方面的选择比例高,差异均具有统计学意义(均P<0.05)。结论:体外动态心脏模型与CPBL相结合的教学方法用于心脏超声科住培,能够调动住院医师的主观能动性,有助于完成住培培养目标、提高住培的教学效果。
文摘Various steady models for interaction between heart and arterial system have been given in liter- ature,In our recent study,a dynamic principle,i.e.the principle of least cardiac work is proposed,and a dy- namic model for interaction of heart and arterial system is established.Preliminary results of our experiments show that both the principle and the model are consistent with the physiological phenomena.It reveals that the pres- ent analysis may offer a new measure for the study of dynamic process of interaction between heart and arterial system.
基金Project supported by the State Key Development Program for Basic Research of China (Grant No 2006CB601007)the National Natural Science Foundation of China (Grant No 10674006)the National High Technology Research and Development Program of China (Grant No 2007AA03Z238)
文摘Two cardiac functional models are constructed in this paper. One is a single current model and the other is a current multipole model. Parameters denoting the properties of these two models are calculated by a least-square fit to the measurements using a simulated annealing algorithm. The measured signals are detected at 36 observation nodes by a superconducting quantum interference device （SQUID）. By studying the trends of position, orientation and magnitude of the single current dipole model and the current multipole model in the QRS complex during one time span and comparing the reconstructed magnetocardiography （MCG） of these two cardiac models, we find that the current multipole model is a more appropriate model to represent cardiac electrophysiological activity.
