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CC BY-NC-ND 4.0 · Indian J Radiol Imaging 2012; 22(01): 4-13
DOI: 10.4103/0971-3026.95396
Computers in Radiology

Managing DICOM images: Tips and tricks for the radiologist

Dandu Ravi Varma
Department of Radiology, Krishna Institute of Medical Sciences, Minister Road, Hyderabad, India
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Abstract

All modalities in radiology practice have become digital, and therefore deal with DICOM images. Image files that are compliant with part 10 of the DICOM standard are generally referred to as "DICOM format files" or simply "DICOM files" and are represented as ".dcm." DICOM differs from other image formats in that it groups information into data sets. A DICOM file consists of a header and image data sets packed into a single file. The information within the header is organized as a constant and standardized series of tags. By extracting data from these tags one can access important information regarding the patient demographics, study parameters, etc. In the interest of patient confidentiality, all information that can be used to identify the patient should be removed before DICOM images are transmitted over a network for educational or other purposes. In addition to the DICOM format, the radiologist routinely encounters images of several file formats such as JPEG, TIFF, GIF, and PNG. Each format has its own unique advantages and disadvantages, which must be taken into consideration when images are archived, used in teaching files, or submitted for publication. Knowledge about these formats and their attributes, such as image resolution, image compression, and image metadata, helps the radiologist in optimizing the archival, organization, and display of images. This article aims to increase the awareness among radiologists regarding DICOM and other image file formats encountered in clinical practice. It also suggests several tips and tricks that can be used by the radiologist so that the digital potential of these images can be fully utilized for maximization of workflow in the radiology practice.

Keywords

Compression - DICOM - image file - management - PowerPoint® - resolution


Publication History

Article published online:
30 July 2021

© 2012. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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  • References

  • 1 Indrajit IK. Digital imaging and communications in medicine: A basic review. Indian J Radiol Imaging 2007;17:5-7.
  • 2 DICOM. Available from: http://en.wikipedia.org/wiki/DICOM. [Last accessed on 2011 Jun 26].
  • 3 Graham RN, Perriss RW, Scarsbrook AF. DICOM demystified: A review of digital file formats and their use in radiological practice. Clin Radiol 2005;60:1133-40.
  • 4 Varma DR. Free DICOM browsers. Indian J Radiol Imaging 2008;18:12-6.
  • 5 An introduction to the DICOM single-file format. Available from: http://www.cabiatl.com/mricro/dicom/index.html. [Last accessed on 2011 Jun 26].
  • 6 Digital Imaging and Communications in Medicine (DICOM) Part 6: Data Dictionary. Available from: http://medical.nema.org/dicom/2004/04_06PU.PDF. [Last accessed on 2011 Jun 26].
  • 7 Dicomworks. Available from: http://dicom.online.fr/. [Last accessed on 2011 Jun 26].
  • 8 ImageJ. Available from: http://rsbweb.nih.gov/ij/. [Last accessed on 2011 Jun 26].
  • 9 Xnview. Available from: http://www.xnview.com/. [Last accessed on 2011 Jun 26].
  • 10 FPImage. Available from: http://www.fpimage.com/info.html. [Last accessed on 2011 Jun 26].
  • 11 Image file formats. Available from: http://en.wikipedia.org/wiki/Image_file_formats. [Last accessed on 2011 Jun 26].
  • 12 Ernst RD, Baumgartner BR, Tamm EP, Torres WE. Development of a Teaching File by Using a DICOM Database. Radiographics 2002;22:217-21.
  • 13 Wiggins RH 2nd, Davidson HC, Harnsberger HR, Lauman JR, Geode PA. Image file formats: Past, present, and future. Radiographics 2001;21:789-98.
  • 14 Medisp DICOM viewer. Available from: http://www.teiath.gr/stef/tio/medisp/downloads.htm. [Last accessed on 2011 Jun 26].
  • 15 Irfanview. Available from: http://www.irfanview.com/. [Last accessed on 2011 Jun 26].
  • 16 Indrajit IK, Verma BS. Digital imaging in radiology practice: An introduction to few fundamental concepts. Indian J Radiol Imaging 2007;17:230-6.
  • 17 Yam CS. Using PowerPoint to create high-resolution images for journal publications. AJR Am J Roentgenol 2005;185:273-6.
  • 18 Stern EJ, Richardson ML. Preparation of digital images for presentation and publication. AJR Am J Roentgenol 2003;180:1523-31.
  • 19 ′File size, storage and image compression′ in Digital Imaging for Photographers. In: Davies A, Fennessy P, editors. 4th ed. United Kingdom: Focal Press; 2001.p74 - 92.
  • 20 Metadata. Available from: http://en.wikipedia.org/wiki/Metadata. [Last accessed on 2011 Jun 26].
  • 21 International Press Telecommunications Council. Available from: http://www.iptc.org/site/Photo_Metadata/Overview/. [Last accessed on 2011 Jun 26].
  • 22 Exchangeable image file format. Available from: http://en.wikipedia.org/wiki/Exif. [Last accessed on 2011 Jun 26].
  • 23 IPTC Information Interchange Model. Available from: http://en.wikipedia.org/wiki/IPTC_Information_Interchange_Model. [Last accessed on 2011 Jun 26].
  • 24 Khanna PC, Thapa MM, de Regt D, Weinberger E. PACStacker: An enhancement of the scientific and educational capabilities of PowerPoint. AJR Am J Roentgenol 2009;192:W71-4.
  • 25 Gniadek TJ, Desjardins B. Interactive display of stacks of images in scientific presentations with PowerPoint. AJR Am J Roentgenol 2004;183:859-61.
  • 26 Park MY, Choi BG. What radiologists want to see: Stack mode display in PowerPoint. AJR Am J Roentgenol 2010;194:909-11.
  • 27 Haider MA. Extending PowerPoint with DICOM image support. Radiographics 2003;23:1683-7.