A note on the construction of test panels for the spectral imaging of paintings

The construction and examination of test panels is an ad hoc procedure, necessary for every spectral imaging study of paintings. Despite the common features, almost every scientific team follows a different way of construction. Furthermore, many of these approaches are not adequately documented in the relevant papers. Failure to use common language and practice leads to confusion about properties of materials and paint layers that have been overall examined by the scientists, as well as the validity of the results and their exploitation in several conservation applications. The present theoretical approach points out the need for common protocols for the construction of test panels and draws general principles as a flow chart on which they should be based.     

社会认知、文化与大脑——文化神经科学研究

社会交往是人类最重要的活动之一,具有文化多样性。人类在进化中发展出加工关于自我和他人社会信息的特定机制,这些机制受社会文化情境的影响。人脑在加工与自我和他人相关的社会信息时,也表现出神经层面上的文化可塑性。本文介绍了近年来对社会认知及其神经基础的跨文化研究,这些研究促使了文化神经科学的诞生。还讨论了该领域的重要研究问题。     

开辟医学影像学期刊品牌专栏"图文讲座"

探讨创办医学影像学期刊"图文讲座"新栏目的经验.认为以图文讲座为品牌栏目,不仅适应了"读图时代"受众心理和阅读取向,而且显示了该类专业杂志的突出特色,有利于期刊国际化的交流,提升了核心竞争力.     

Chaotic and Fractal Analysis of Imaging Measurements of Fluidized Bed

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本科生导师制的实践与思索——以医学影像技术专业为例

为响应国家加快建设高水平本科教育,全面提高人才培养能力的号召,院系探索实施了三届的本科生导师制教学。本科生导师制是对传统本科教育模式的补充,让师生之间的沟通更为紧密,为培养高素质人才提供了一种新的途径,在大部分本科生中反响较好。但在实施本科生导师制的过程中也遇到了一些问题,文章对本科生导师制教学实践做了总结和思考,分析目前本科生导师制面临的问题,探讨解决的方案,不断完善本科生导师制。     

案例式PBL教学在医学影像技术教学意义的探索与思考

以问题为基础的教学模式(Problem Based Learning,PBL)是我国前期医学教育的改革方向,应用于后期临床实践教学同样具有革命性意义。医学影像技术专业学生实习采用案例式PBL教学模式,有利于加强学生的相关知识网络结构,使得学生更全面地熟悉相关影像技术的理论知识,将理论与实践相结合,提高最优化扫描技术的选择能力。     

Cinematic Rendering in Anatomy: A Crossover Study Comparing a Novel 3D Reconstruction Technique to Conventional Computed Tomography

Integration of medical imaging into preclinical anatomy courses is already underway in many medical schools. However, interpretation of two-dimensional grayscale images is difficult and conventional volume rendering techniques provide only images of limited quality. In this regard, a more photorealistic visualization provided by Cinematic Rendering (CR) may be more suitable for anatomical education. A randomized, two-period crossover study was conducted from July to December 2018, at the University Hospital of Erlangen, Germany to compare CR and conventional computed tomography (CT) imaging for speed and comprehension of anatomy. Sixteen students were randomized into two assessment sequences. During each assessment period, participants had to answer 15 anatomy-related questions that were divided into three categories: parenchymal, musculoskeletal, and vascular anatomy. After a washout period of 14 days, assessments were crossed over to the respective second reconstruction technique. The mean interperiod differences for the time to answer differed significantly between the CR–CT sequence (−204.21 ± 156.0 seconds) and the CT–CR sequence (243.33 ± 113.83 seconds; P < 0.001). Overall time reduction by CR was 65.56%. Cinematic Rendering visualization of musculoskeletal and vascular anatomy was higher rated compared to CT visualization (P < 0.001 and P = 0.003), whereas CT visualization of parenchymal anatomy received a higher scoring than CR visualization (P < 0.001). No carryover effects were observed. A questionnaire revealed that students consider CR to be beneficial for medical education. These results suggest that CR has a potential to enhance knowledge acquisition and transfer from medical imaging data in medical education.     

核医学肝胆显像剂IODIDA的合成研究

为合成肝胆显像剂IODIDA,以活泼芳香胺为原料,经改进的直接碘化法,选择性碘代芳香胺。在吡啶与醋酐存在下,用相应的碘代芳香胺与氮三乙酸反应,可得所需产物,产率较好。     

核磁共振成像技术教学实验研究

为了克服现有核磁共振成像实验仪不能很好地满足直观实验教学需要之不足,同时为小样品小范围测试进行科学研究提供方便,并为教学单位提供价格相对低廉的产品.利用核磁共振成像的基本原理,采用NMI20型台式核磁共振成像仪,研究如何开展核磁共振成像技术教学实验问题.开发了涉及共振频率、脉冲序列、相位编码、加权成像、射频功放等内容的26个实验.作为教学实验设备,该成像仪备具有直观的界面以及成像过程的开放性,能使学生深入掌握核磁共振的原理、结构及其硬件系统,教学效果良好.     

数字成像法在肤色测量中的应用

皮肤颜色的客观化测量是皮肤医学领域最受关注的问题之一．近年来,随着科技的飞速发展,数字成像法实现了在肤色测量中的应用,该方法主要采用数字成像技术和图像处理技术来测量待测样品的颜色．文中首先简要叙述了皮肤颜色的形成过程,然后着重介绍了数字成像法在肤色测量中的几个应用实例,最后展望了该方法的发展方向和应用前景．事实表明,数字成像法已成为当今肤色测量领域中的一个重要研究方向．