Solving Annoying Dicom Problems Using IMAGEJ and the Tudor DICOM Tools

Abstract

DICOM (Digital Imaging and Communication in Medicine) is the standard for the storage, transfer and the processing in medical imaging. The standard defines not only the file format to store the image data, it defines as well a data dictionary for meta information and a network communication protocol. Today, DICOM is used in most radiology departments for the implementation of RIS (Radiology Information System) and PACS (Picture Archiving and Communication System) to ensure smooth operation and vendor independence. For standard workflows and applications the systems are well tested.
Besides the normal hospital workflow, for which the PACS fulfils all the needs, there are often particular problems in importing, converting or treating images that need to be solved contemporary by providing an in-house solution.
The TUDOR DICOM Tools are a free and Open Source Java library to perform high-level DICOM operations. It is based on dcm4che (dcm4che, http://www.dcm4che.org/) version 2, the Java Advanced Imaging API (http://java.sun.com/products/java-media/jai/iio.html) (JAI) and ImageJ (http://rsbweb.nih.gov/ij/), a public domain image processing program developed at the National Institutes of Health.
It offers functionality to read and write DICOM files from a disc or DICOM CD, work with the DICOM header (change values or make them anonymous), send and receive images over the network, query images from a PACS server and transcode images. The following DICOM network services are provided by the tools: C-ECHO-SCU/SCP, STORAGE-SCP, QUERY/RETRIEVE-SCU. Additionally it offers components to view DICOM images with features like windowing, zooming, shifting, measuring etc. The DICOM open dialogue with integrated store and send functionalities can not only be used to view images, but to retrieve images from one modality, store images into a DICOMDIR which can be burned as DICOM CD or send them to another DICOM capable modality.
The toolkit can be used in two ways: First of all it provides ImageJ Plugins that allow the interactive use of the provided features within the ImageJ environment to find a solution for a particular imaging problem. A usage within the ImageJ Macro Language is possible as well. Furthermore It can be used as a library in own custom applications. Several sample applications are shown as case studies to demonstrate the power and the ease of use of the toolkit. This includes the Tudor DICOM Viewer (a simple but yet powerful DICOM viewer), DICOM Transcode-Node (A DICOM note to integrate and convert compressed DICOM images) and several more. The toolkit is powerful and easy to use. Custom applications can be tested within the ImageJ environment and then implemented in a Java application. The presented use case applications show how this power.

Author

Johannes Hermen¹, Christian Moll¹, Andreas Jahnen¹

Organisation

CRP Henri Tudor¹

Homepage http://santec.tudor.lu

Keywords

Conference

Med-e-Tel

Proceeding

Citation

Solving Annoying Dicom Problems Using IMAGEJ and the Tudor DICOM Tools
J. Hermen, C. Moll, A. Jahnen
CRP Henri Tudor, CR SANTEC, Luxembourg

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