DBMap: A TreeMap-based framework for data navigation and visualization of brain research registry

Ming Zhang, Hong Zhang, Donny Tjandra, Stephen T.C. Wong

Research output: Contribution to journalConference articlepeer-review


The purpose of this study is to investigate and apply a new, intuitive and space-conscious visualization framework to facilitate efficient data presentation and exploration of large-scale data warehouses. We have implemented the DBMap framework for the UCSF Brain Research Registry. Such a novel utility would facilitate medical specialists and clinical researchers in better exploring and evaluating a number of attributes organized in the brain research registry. The current UCSF Brain Research Registry consists of a federation of disease-oriented database modules, including Epilepsy, Brain Tumor, Intracerebral Hemorrphage, and CJD (Creuzfeld-Jacob disease). These database modules organize large volumes of imaging and non-imaging data to support Web-based clinical research. While the data warehouse supports general information retrieval and analysis, there lacks an effective way to visualize and present the voluminous and complex data stored. This study investigates whether the TreeMap algorithm can be adapted to display and navigate categorical biomedical data warehouse or registry. TreeMap is a space constrained graphical representation of large hierarchical data sets, mapped to a matrix of rectangles, whose size and color represent interested database fields. It allows the display of a large amount of numerical and categorical information in limited real estate of computer screen with an intuitive user interface. The paper will describe, DBMap, the proposed new data visualization framework for large biomedical databases. Built upon XML, Java and JDBC technologies, the prototype system includes a set of software modules that reside in the application server tier and provide interface to backend database tier and front-end Web tier of the brain registry.

Original languageEnglish (US)
Pages (from-to)403-412
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2003
EventMedical Imaging 2003: PACS and Integrated Medical Information Systems: Design and Evaluation - San Diego, CA, United States
Duration: Feb 18 2003Feb 20 2003


  • Clinical neurological research
  • Data visualization
  • Epilepsy
  • Image data warehouse
  • TreeMap

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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