本研究旨在将"儿童认知发展水平诊断工具"(Inventory of Piaget’s Developmental Task,IPDT)中的守恒与关系领域分测验改编成动态测验,并应用于不同程度学业成绩儿童当中以探查其认知发展的潜在水平。在实验研究基础上结合...本研究旨在将"儿童认知发展水平诊断工具"(Inventory of Piaget’s Developmental Task,IPDT)中的守恒与关系领域分测验改编成动态测验,并应用于不同程度学业成绩儿童当中以探查其认知发展的潜在水平。在实验研究基础上结合以往动态测验的编制技术,把动态施测过程分为"前测—干预—迁移—后测"4个阶段,分别确定各阶段的测题并构建了6等级提示系统。在中等学业成绩儿童(n=33)和低学业成绩儿童(n=35)中的应用发现,动态测验测得的能力获得变量对儿童的学业成绩具有重要的预测作用,证实了所改编测验的有效性;动态测验情境下中、低学业成绩儿童的潜在认知水平基本相同,所改编的动态测验有助于发掘儿童的潜在认知发展水平。展开更多
Objective.:To evaluate whether magnetic resonance imaging (MRI) is a reliable modality for verifying preoperative diagnosis of stage IA endometrial carcinoma. Methods.:One hundred sixteen patients with endometrial car...Objective.:To evaluate whether magnetic resonance imaging (MRI) is a reliable modality for verifying preoperative diagnosis of stage IA endometrial carcinoma. Methods.:One hundred sixteen patients with endometrial carcinoma underwent preoperative pelvic non-contrast T2-weighted or dynamic MRI. We compared the interpretations of the MRI results with the histological findings of the resected uterus. Results.:In assessing the depth of myometrial invasion,the accuracy of MRI was 62.1%. As to the presence of cancerous myometrial invasion,the positive predictive value was 94.4%as high as previously reported by other institutions. However,the negative predictive value,the probability of the absence of myometrial invasion,was only 42.2%. Even when dynamic study was applied to the patient,the value only improved up to 60.0%. Conclusion.:MRI has a definite advantage in evaluating deep myometrial invasion,but not the absence of invasion. We should take precautions against the risk of under-diagnosis when selecting stage IA endometrial carcinoma with use of MRI to preserve fertility or to eliminate lymphadenectomy.展开更多
文摘本研究旨在将"儿童认知发展水平诊断工具"(Inventory of Piaget’s Developmental Task,IPDT)中的守恒与关系领域分测验改编成动态测验,并应用于不同程度学业成绩儿童当中以探查其认知发展的潜在水平。在实验研究基础上结合以往动态测验的编制技术,把动态施测过程分为"前测—干预—迁移—后测"4个阶段,分别确定各阶段的测题并构建了6等级提示系统。在中等学业成绩儿童(n=33)和低学业成绩儿童(n=35)中的应用发现,动态测验测得的能力获得变量对儿童的学业成绩具有重要的预测作用,证实了所改编测验的有效性;动态测验情境下中、低学业成绩儿童的潜在认知水平基本相同,所改编的动态测验有助于发掘儿童的潜在认知发展水平。
文摘Objective.:To evaluate whether magnetic resonance imaging (MRI) is a reliable modality for verifying preoperative diagnosis of stage IA endometrial carcinoma. Methods.:One hundred sixteen patients with endometrial carcinoma underwent preoperative pelvic non-contrast T2-weighted or dynamic MRI. We compared the interpretations of the MRI results with the histological findings of the resected uterus. Results.:In assessing the depth of myometrial invasion,the accuracy of MRI was 62.1%. As to the presence of cancerous myometrial invasion,the positive predictive value was 94.4%as high as previously reported by other institutions. However,the negative predictive value,the probability of the absence of myometrial invasion,was only 42.2%. Even when dynamic study was applied to the patient,the value only improved up to 60.0%. Conclusion.:MRI has a definite advantage in evaluating deep myometrial invasion,but not the absence of invasion. We should take precautions against the risk of under-diagnosis when selecting stage IA endometrial carcinoma with use of MRI to preserve fertility or to eliminate lymphadenectomy.
