Journal of Pathology Informatics Journal of Pathology Informatics
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TECHNICAL NOTE
Year : 2019  |  Volume : 10  |  Issue : 1  |  Page : 12

Dual-Personality DICOM-TIFF for whole slide images: A migration technique for legacy software


Pixelmed Publishing, LLC, Bangor, Pennsylvania, USA

Correspondence Address:
Dr. David A Clunie
Pixelmed Publishing, LLC, Bangor, Pennsylvania 18013
USA
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jpi.jpi_93_18

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Despite recently organized Digital Imaging and Communications in Medicine (DICOM) testing and demonstration events involving numerous participating vendors, it is still the case that scanner manufacturers, software developers, and users continue to depend on proprietary file formats rather than adopting the standard DICOM whole slide microscopic image object. Many proprietary formats are Tagged Image File Format (TIFF) based, and existing applications and libraries can read tiled TIFF files. The sluggish adoption of DICOM for whole slide image encoding can be temporarily mitigated by the use of dual-personality DICOM-TIFF files. These are compatible with the installed base of TIFF-based software, as well as newer DICOM-based software. The DICOM file format was deliberately designed to support this dual-personality capability for such transitional situations, although it is rarely used. Furthermore, existing TIFF files can be converted into dual-personality DICOM-TIFF without changing the pixel data. This paper demonstrates the feasibility of extending the dual-personality concept to multiframe-tiled pyramidal whole slide images and explores the issues encountered. Open source code and sample converted images are provided for testing.


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