目的:本研究利用CT三维重建技术重建颅骨,对广西壮族成年人眶区骨组织随年龄增长发生改变的特征进行量化分析,以期发现广西壮族人骨性眼眶老化的规律,为眶区年轻化治疗提供数据参考。方法:随机抽取广西医科大学第一附属医院及第二附属医...目的:本研究利用CT三维重建技术重建颅骨,对广西壮族成年人眶区骨组织随年龄增长发生改变的特征进行量化分析,以期发现广西壮族人骨性眼眶老化的规律,为眶区年轻化治疗提供数据参考。方法:随机抽取广西医科大学第一附属医院及第二附属医院100例颅骨发育正常的广西壮族成年人的头颅CT扫描资料作为研究样本,按年龄分为三组:年轻组37例(19~41岁)、中年组27例(48~59岁)、老年组36例(≥60岁)。利用GE AW 4.7工作台对每名受检者左眼眶的眶口宽度、眶口高度及两条斜径进行定量测量,以SPSS软件对采集数据进行统计学分析。结果:根据受试对象的眼眶宽度、眼眶高度、内上-外下径、内下-外上径的测量结果得出,在每个年龄分组中,男性研究对象的各项测量平均值均大于女性研究对象。男性研究对象的眼眶宽度(P=0.436)、眼眶高度(P=0.065)、内上-外下径(P=0.683)、内下-外上径(P=0.580)与年龄的增长无显著相关性。女性研究对象的眼眶宽度(P=0.674)、眼眶高度(P=0.502)、内上-外下径(P=0.966)、内下-外上径(P=0.290)与年龄的增长无显著相关性。眶缘在各个方向的变化是不规则的。结论:在本研究中,男性或女性广西壮族人的眶缘并未随年龄改变发生明显的变化。展开更多
Computed tomography(CT) reconstruction with a well-registered priori magnetic resonance imaging(MRI) image can improve reconstruction results with low-dose CT, because well-registered CT and MRI images have similar st...Computed tomography(CT) reconstruction with a well-registered priori magnetic resonance imaging(MRI) image can improve reconstruction results with low-dose CT, because well-registered CT and MRI images have similar structures. However, in clinical settings, the CT image of patients does not always match the priori MRI image because of breathing and movement of patients during CT scanning. To improve the image quality in this case, multi-group datasets expansion is proposed in this paper. In our method, multi-group CT-MRI datasets are formed by expanding CT-MRI datasets. These expanded datasets can also be used by most existing CT-MRI algorithms and improve the reconstructed image quality when the CT image of a patient is not registered with the priori MRI image. In the experiments, we evaluate the performance of the algorithm by using multi-group CT-MRI datasets in several unregistered situations. Experiments show that when the CT and priori MRI images are not registered, the reconstruction results of using multi-group dataset expansion are better than those obtained without using the expansion.展开更多
Background: The guidance of prospective therapists focused on Cognitive Behavioral Therapy (CBT) is most often made by groups of four students. However, learning therapist skills is a sensitive process that will be af...Background: The guidance of prospective therapists focused on Cognitive Behavioral Therapy (CBT) is most often made by groups of four students. However, learning therapist skills is a sensitive process that will be affected by the processes which occur within the group. Objective: The aim was to examine prospective psychotherapists’ attitudes to group assessments based on the revised version of the Cognitive Therapy Scale (CTS-R). Method: Participants were 56 students with an average age of 45.65 years (range = 31 - 64). They were recruited from psychotherapy training at the Gothenburg University and the Evidens University College in Sweden. A questionnaire was constructed in which the questions were answered by check on visual analogue scales (VAS). Results: A majority of students consisting of 38 participants (68%) had a very positive approach to group assessments, while a minority of 18 participants (32%) was more negative. Most crucial for how to answer the question of group assessments was whether they considered themselves as fairly evaluated by their student colleagues within the group and whether or not only the supervisor should make the assessments. The view of group assessments (negative or positive) was not related to age, gender, and level of education in CBT or profession. In addition, both groups had a very positive view of both the CTS-R and the supervisors. Conclusion: It was concluded that more studies with the same focus are needed to determine the extent to which the results are generalizable.展开更多
文摘目的:本研究利用CT三维重建技术重建颅骨,对广西壮族成年人眶区骨组织随年龄增长发生改变的特征进行量化分析,以期发现广西壮族人骨性眼眶老化的规律,为眶区年轻化治疗提供数据参考。方法:随机抽取广西医科大学第一附属医院及第二附属医院100例颅骨发育正常的广西壮族成年人的头颅CT扫描资料作为研究样本,按年龄分为三组:年轻组37例(19~41岁)、中年组27例(48~59岁)、老年组36例(≥60岁)。利用GE AW 4.7工作台对每名受检者左眼眶的眶口宽度、眶口高度及两条斜径进行定量测量,以SPSS软件对采集数据进行统计学分析。结果:根据受试对象的眼眶宽度、眼眶高度、内上-外下径、内下-外上径的测量结果得出,在每个年龄分组中,男性研究对象的各项测量平均值均大于女性研究对象。男性研究对象的眼眶宽度(P=0.436)、眼眶高度(P=0.065)、内上-外下径(P=0.683)、内下-外上径(P=0.580)与年龄的增长无显著相关性。女性研究对象的眼眶宽度(P=0.674)、眼眶高度(P=0.502)、内上-外下径(P=0.966)、内下-外上径(P=0.290)与年龄的增长无显著相关性。眶缘在各个方向的变化是不规则的。结论:在本研究中,男性或女性广西壮族人的眶缘并未随年龄改变发生明显的变化。
基金the National Natural Science Foundation of China(No.813716234)the National Basic Research Program(973)of China(No.2010CB834302)Shanghai Jiao Tong University Medical Engineering Cross Research Funds(Nos.YG2013MS30 and YG2014ZD05)
文摘Computed tomography(CT) reconstruction with a well-registered priori magnetic resonance imaging(MRI) image can improve reconstruction results with low-dose CT, because well-registered CT and MRI images have similar structures. However, in clinical settings, the CT image of patients does not always match the priori MRI image because of breathing and movement of patients during CT scanning. To improve the image quality in this case, multi-group datasets expansion is proposed in this paper. In our method, multi-group CT-MRI datasets are formed by expanding CT-MRI datasets. These expanded datasets can also be used by most existing CT-MRI algorithms and improve the reconstructed image quality when the CT image of a patient is not registered with the priori MRI image. In the experiments, we evaluate the performance of the algorithm by using multi-group CT-MRI datasets in several unregistered situations. Experiments show that when the CT and priori MRI images are not registered, the reconstruction results of using multi-group dataset expansion are better than those obtained without using the expansion.
文摘Background: The guidance of prospective therapists focused on Cognitive Behavioral Therapy (CBT) is most often made by groups of four students. However, learning therapist skills is a sensitive process that will be affected by the processes which occur within the group. Objective: The aim was to examine prospective psychotherapists’ attitudes to group assessments based on the revised version of the Cognitive Therapy Scale (CTS-R). Method: Participants were 56 students with an average age of 45.65 years (range = 31 - 64). They were recruited from psychotherapy training at the Gothenburg University and the Evidens University College in Sweden. A questionnaire was constructed in which the questions were answered by check on visual analogue scales (VAS). Results: A majority of students consisting of 38 participants (68%) had a very positive approach to group assessments, while a minority of 18 participants (32%) was more negative. Most crucial for how to answer the question of group assessments was whether they considered themselves as fairly evaluated by their student colleagues within the group and whether or not only the supervisor should make the assessments. The view of group assessments (negative or positive) was not related to age, gender, and level of education in CBT or profession. In addition, both groups had a very positive view of both the CTS-R and the supervisors. Conclusion: It was concluded that more studies with the same focus are needed to determine the extent to which the results are generalizable.
