报告人简介：
张艳天博士是美国国立卫生研究院（NIH）国家肿瘤研究所（NCI）肿瘤成像项目的项目主管。在加入NCI之前，张博士从2004年就起在NIH的国家生物医学成像和生物工程研究所（NIBIB）工作。在NIBIB工作期间，张博士主管光学成像和分子成像的项目。张博士现在的工作主要集中在不同领域的生物医学成像技术开发和临床转换的研究与项目管理。张博士的研究背景是生物医学成像，他早期的工作主要集中在核磁共振成像技术的发展和应用方面。他在1994年于密歇根大学获得生物工程博士学位。

Biography:
Dr. Yantian Zhang is a program director at the Cancer Imaging Program, National Cancer Institute (NCI) of the National Institutes of Health (NIH). Prior to joining the NCI, Dr. Zhang had been with the National Institute of Biomedical Imaging and Bioengineering (NIBIB), also of the NIH, since 2004. At the NIBIB, Dr. Zhang directed the Optical Imaging as well as the Molecular Imaging programs. Dr. Zhang’s current work is primarily focused on scientific research and program management in various research areas of biomedical imaging technology development and clinical translations. Dr. Zhang has a research background in biomedical imaging and conducted MRI technology development and applications research earlier in his career. He earned the Ph.D. degree in Bioengineering from the University of Michigan in 1994.

报告摘要：
自从X射线成像首次被应用于医学中，医学影像已经在探测和诊断疾病、评估治疗效果方面发挥了更为重要的作用。现今常规医院里使用的所有的主要医学影像模式都是大约在最近50年中发明的。随后医学影像技术在成像分辨率、成像速度、发现新的内源性对比机制和发展新的外源性造影剂、医学影像的处理、分析、可视化等方面取得了长足的进步。我们已经从简单的二维投影成像跨越到准实时获取的三维影像，从仅仅显示解剖结构跨越到高灵敏度和特异性的生理功能、疾病状态和治疗效果的监测。时至今日，医学影响的应用领域已经遍布主要的人体器官和疾病类型，从神经疾病、代谢紊乱到心血管疾病、传染病，还有肿瘤。
如果从更宽广的视角来看，生物医学影像学在技术上和应用方面获得了极大的发展，它为生物学和生物医学研究提供了非常重要的结果，帮助我们从分子到细胞、再到器官和系统的尺度上理解基础的生物学理论、疾病发生发展的过程。基于过去50年生物医学影像学所取得的重要进展，毫无疑问地我们会问：生物医学成像未来会如何发展？在本次演讲中，演讲人希望鼓励听众参与面对面的对话，并讲述他从其独特的视角对该问题的看法。

Abstract:
Medical imaging, since the first use of x-ray imaging in medicine, has played an ever more important role in detecting and diagnosing diseases and in evaluating treatment response. All major medical imaging modalities routinely used in the hospital today are invented within the timeframe of the last 50 years. Tremendous improvements have been made in image resolution, acquisition speed, development and exploration of novel endogenous and exogenous contrast mechanisms and imaging agents, as well as image processing, analysis, and visualization capabilities. We have progressed from simple 2D projection imaging to near real-time acquisition of 3D images; and from simple displays of anatomic structures to highly sensitive and specific reporting of physiological functions, disease states and treatment efficacy. Today, the application range of medical imaging span all major organs and disease types, from neurological diseases, metabolic disorders; to cardiovascular diseases, infectious diseases, and cancer.
Similarly but from a broader perspective, biomedical imaging sciences in general has experienced great developments and expansions, and made major contributions to biological and biomedical research in advancing our understanding of the basic biology as well as the disease processes from the molecular and cellular levels to the organ and systems levels. In light of the remarkable progresses and achievements made in imaging sciences in the last 50 years, we would undoubtedly ask ourselves this question: what does future holds for biomedical imaging? In this lecture, the speaker hopes to engage the audience in a direct dialog and will attempt to offer his views on this topic from his unique vintage point.