Transferring DICOM images to PowerPoint.
Moving your Digital Imaging and Communication in Medicine (DICOM (medical, standard) DICOM - (From Digital Imaging and COmmunications in Medicine) A standard developed by ACR-NEMA (American College of Radiology - National Electrical Manufacturer's Association) for communications between medical imaging devices. ) images into Microsoft PowerPoint slides can be frustrating at times, especially where there are a number to be inserted. At present PowerPoint does not have the built in ability to import DICOM files, although it is reportedly planned for the next version. There are add-ons offering direct DICOM importation into PowerPoint, but they require installation (1) (an Internet search for 'PowerPoint' and 'DICOM' will reveal more of these). This therefore means that in most cases the DICOM files will have to be converted, typically into Joint Photographic Experts Group (image, body, file format, standard) Joint Photographic Experts Group - (JPEG) The original name of the committee that designed the standard image compression algorithm. JPEG is designed for compressing either full-colour or grey-scale digital images of "natural", real-world scenes. (JPEG JPEG
in full Joint Photographic Experts Group
Standard computer file format for storing graphic images in a compressed form for general use. JPEG images are compressed using a mathematical algorithm. ) images that PowerPoint does handle. (2) These files are recognised by having a .jpg file See JPEG. name extension; e.g. 'mountain.jpg'.
There are two options for obtaining JPEG files from DICOM files at this stage--most commonly, using your preferred DICOM viewing workstation software to save the files in JPEG format. This is by far the easiest. Make a note of the folder into which the JPEG files have been saved (or they can be stored onto a USB stick It typically refers to a flash-based USB drive, but may refer to a USB-based device that performs some other function such as a wireless adapter. See USB drive. )
Alternatively, use a stand-alone software graphics conversion programme such as IrfanView (http://www.irfanview.com--remember to also download the Plugins/AddOns that allow DICOM viewing).2 This is a free image viewing programme that deals with almost all DICOM formats--the one requirement however is that the file be named with a .dcm extension. Having copied the DICOM directory structure from your workstation to a new folder on your computer (do not use the original DICOM data), one will see a range of numbered folders. Within these will be individual files which need to be renamed (e.g. '1234' becomes '1234.dcm'). Batch file (1) A file containing data that is processed or transmitted from beginning to end.
(2) A file containing instructions that are executed one after the other from beginning to end. See BAT file and shell script. renaming software is available, including Total Commander at www.ghisler.com. IrfanView then has a multi-file batch conversion option which allows conversion of DICOM to JPEG or other common imaging formats.
Once PowerPoint is open, successively select 'Insert /Picture/ From File' in the menu bar (Fig. 1). In the selection window, locate the JPEG files where they have been stored. Note that selecting multiple images in this option will stack them one on top of each other. If you wish to have one picture per slide, see the 'New Photo Album' option below.
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If the image is in colour, but should be grayscale In computing, a grayscale or greyscale digital image is an image in which the value of each pixel is a single sample. Displayed images of this sort are typically composed of shades of gray, varying from black at the weakest intensity to white at the strongest, though in (as when taken with a digital camera), convert it to grayscale by left-clicking on the picture in the slide. Then find the Picture toolbar--this is a floating toolbar See toolbar. , and may be anywhere on the screen. If this toolbar A row or column of on-screen buttons used to activate functions in the application. Many toolbars are customizable, letting you add and delete buttons as required. Toolbars may be fixed in position or may float, which means they can be dragged to a more convenient location in the is not visible, go to 'View/ Toolbars' and make sure the 'Picture' option is ticked, and the Picture toolbar should appear. It may be docked on the sides or top and bottom of the window. The second icon from the left is the color icon; left-click this and select grayscale (Fig. 2).
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The picture toolbar allows selection of a few other options, including contrast and brightness--a basic windowing For Northcoast
Where we call someone over and then roll our window up on them. Bassline preference.
For Example: "Hey, Andi." *insert window being rolled up* "HAHAHA. option (Fig. 3). To resize Verb 1. resize - change the size of; make the size more appropriate
size - make to a size; bring to a suitable size
rescale - establish on a new scale the picture, left-click on the picture and look for the small white circles at every corner, and in the midsection mid·sec·tion
A middle section, especially the midriff of the body. of each side. Click and drag Using a pointing device, such as a mouse, to latch onto an icon on screen and move it to some other location. When the screen pointer is over the icon of the object, the mouse button is clicked to grab it. The button is held down while the object is moved ("dragged") to its destination. these to resize. Use only the corner blocks if you wish to retain aspect ratio. To move the image, left-click in the picture and drag while holding the left mouse button down (a 4-headed arrow should appear).
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If the inserted picture is too large, left-click the picture and then select the 'zoom' icon in the menu bar above and choose 25%, or type in a smaller figure. One way to avoid the oversize o·ver·size
1. A size that is larger than usual.
2. An oversize article or object.
adj. o·ver·size also o·ver·sized
Larger in size than usual or necessary.
Adj. 1. image, is to first select the space in the picture area of the slide layout--the picture is then constrained by the outline.
Cropping is also very useful when extraneous parts of the picture need to be removed (Fig. 4). Select the 7th icon from the left in the picture toolbar; black bars with white outlines appear where the resize circles were. Dragging these into the picture, cut off the outlying parts of the image.
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A quicker means of inserting multiple pictures is to use 'Insert/ Picture/ New Photo Album' (Fig. 5), and to select multiple files, then choose 'ALL pictures black and white'--this really means grayscale (Fig. 6). But beware--once the picture is imported using this method, it cannot be cropped. The picture has to be pre-cropped before insertion. The other picture adjustments are feasible. There are commercial add-ins available that do allow cropping, or alternatively the picture can be copied (right-click picture; select copy) and pasted into IrfanView (open IrfanView, 'Edit/Paste'), cropped in IrfanView (click and drag a box, select 'Edit/ Crop selection' in IrfanView), then copy ('Edit/Copy' in IrfanView) and paste (select slide, 'Edit/Paste', in PowerPoint), back into PowerPoint.
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There are alternative ways of performing most of these actions; some may be quicker.
The core activity, in summary--DICOM to JPEG; PowerPoint: 'Insert/Picture/FromFile'/ adjust picture.
To minimise the PowerPoint file size, click on the 10th icon from the left in the Picture toolbar, select 'Web/Screen' in 'Change resolution', then 'All pictures in document' in the Apply-to option. Remember this will lower the resolution of your pictures, so ensure that you retain copies of your original images.
(1.) Haider MA. Extending PowerPoint with DICOM image support. Radiographics 2003; 23: 1683-1687.
(2.) Escott EJ, Rubinstein D. Free DICOM image viewing and processing software for your desktop computer: what's available and what it can do for you. Radiographics 2003; 23: 1341-1357.
S Beningfield, MB ChB, FFRad (D) Department of Radiology, University of Cape Town
“UCT” redirects here. For other uses, see UCT (disambiguation).