Category Archives: Easy DICOM Viewer

Convert bitmaps to DICOM images

Using Easy DICOM Viewer, you can easily convert images (in bmp, jpg, png, gif, tif formats) to DICOM images.  To start the conversion, click on the Convert images tab in Easy DICOM Viewer.

Select your images from the file browser in the bottom pane, and drag and drop them into the upper pane.

You can reorder the frames in the DICOM image simply by dragging and dropping each image to their intended location.  To convert the images to DICOM images, click on the Create DICOM file button.

In the Save DICOM Image window, enter the DICOM image file name.  You can also choose to create a single DICOM file with multiple frames, or one DICOM file for each frame.

Click on the OK button to create the DICOM file.

You can also add DICOM tag values for the new DICOM files.

You can use the values from any tag templates you already have in Easy DICOM Viewer, to easily fill in the values.

Download a 14-day trial now of Easy DICOM Viewer and easily convert your images to DICOM files with the tag values you require.

Easy DICOM Viewer is a collaborative effort between LISIT, Co., Ltd. and Yohz Software.  To learn more about Easy DICOM Viewer or download a trial, please use this link.  If you are in Japan, please use this link instead.

Anonymizing and editing DICOM tags

You may sometimes want to modify the tag values in your DICOM images to maintain patient anonymity.  To do that in Easy DICOM Viewer, simply click on the Export series or images button

select the Anonymize top level tags option, and enter the value (ANONYMOUS by default) to replace the existing values.

The top level tags that are anonymized follows the recommendations outlined here (http://dicom.nema.org/dicom/2013/output/chtml/part15/chapter_E.html#table_E.1-1).

If you want more control over which tags are modified and with what values, you can use tag templates.  You can define one or more templates and use them whenever necessary.  The list of existing templates are listed in the drop down list when you select the Apply tags template option.

To create or edit templates, click on the Edit templates button.  In the Tag Templates window, you can define how the DICOM tags should be modified.  For more details, please see this link.

Among other actions, you can:

  • generate UUID-derived UID values for tags that require such values
  • reuse the same UID values for all images in the same series
  • use existing tag values as part of the new values
  • modify tags at all levels, not just at the top level
  • delete all private tags
  • delete all tags
  • view a preview of the values before and after applying your changes

Download a 14-day trial now of Easy DICOM Viewer and easily anonymize or modify your DICOM tag values.

Easy DICOM Viewer is a collaborative effort between LISIT, Co., Ltd. and Yohz Software.  To learn more about Easy DICOM Viewer or download a trial, please use this link.  If you are in Japan, please use this link instead.

Getting a sense of scale in your DICOM images

In Easy DICOM Viewer 3.1, we added the option to display a horizontal and vertical ruler in your DICOM images.  This helps to get a sense of scale when viewing the image, and also helps users make rough approximations.

To toggle the display of the ruler, click on the Show ruler button on the toolbar.

You can also choose to display the ruler in different units of measurement.  The active unit is displayed in the top left corner of the ruler.

You can also choose to display a grid overlay over the image together with the ruler.

To display this grid overlay, select the Show grid lines option in the Show ruler drop down menu.

Download a 14-day trial now of Easy DICOM Viewer and see how easy it is to display a ruler and grid in your DICOM images to help you measure regions of interest.

Easy DICOM Viewer is a collaborative effort between LISIT, Co., Ltd. and Yohz Software.  To learn more about Easy DICOM Viewer or download a trial, please use this link.  If you are in Japan, please use this link instead.

Working with measurement labels in your DICOM images

In Easy DICOM Viewer, you can create multiple measurements in your DICOM image.  By default, only the label for the selected measurement is displayed, to make it obvious which measurement the label is referring to.

You can also choose to display all the measurement labels by selecting the Show all option on the Labels options.

However, in this example, our labels overlap each other.

To reposition a label, first select the Move, edit, delete item from the measurements context menu.

Then select the measurement area you want to reposition the label for.  Press CONTROL and click on the new label position.   Here, we have repositioned our 2 labels so that they no longer overlap when displayed simultaneously.

The measurements panel

All the measurements are also displayed on the measurements panel together with the measurement details.

You can also perform various actions like hiding all the measurements on the images, applying the various label options, or deleting one or more measurements.  You can also export details of your measurements to a Microsoft Word file.  Just click on the Export image and measurements to Word button and enter the file name.

The exported Word file is automatically opened by default.

Download a 14-day trial now of Easy DICOM Viewer and experience for yourself how easy it is to create, edit, and share measurements in your DICOM images.

Easy DICOM Viewer is a collaborative effort between LISIT, Co., Ltd. and Yohz Software.  To learn more about Easy DICOM Viewer or download a trial, please use this link.  If you are in Japan, please use this link instead.

Converting your DICOM images

Easy DICOM Viewer lets you convert your DICOM images to other image formats easily, and will include any measurements and annotations that you have created.

To export an image, click on the Export image… item on the context menu.

Enter the file name for the exported image.  The default image format is JPEG.  To change the image format, click on the Save as type drop-down list and select your format.

Easy DICOM Viewer supports most of the common image formats.  If you want to export to a format that’s currently not available, drop us a line at support@yohz.com.

If your image contained any measurements or annotations, they will also be visible in the exported image.

Download a 14-day trial now of Easy DICOM Viewer and convert your DICOM images in a few simple steps.

Easy DICOM Viewer is a collaborative effort between LISIT, Co., Ltd. and Yohz Software.  To learn more about Easy DICOM Viewer or download a trial, please use this link.  If you are in Japan, please use this link instead.

Color schemes in Easy DICOM Viewer

You can use Easy DICOM Viewer in 3 color schemes – light, dark, and gray, depending on your preferences.

To change the color scheme, select Application > Color scheme from the main menu.

Then select the color scheme you want to use.

In some cases, you may need to restart Easy DICOM Viewer to apply the new color scheme.

Easy DICOM Viewer is a collaborative effort between LISIT, Co., Ltd. and Yohz Software.  To learn more about Easy DICOM Viewer or download a trial, please use this link.  If you are in Japan, please use this link instead.

Measuring regions of a similar color in DICOM images

Easy DICOM Viewer  lets you measure regions of interest in your images using various options.  One such option is to measure the length and area of a region of similar color.

To use that option, first select the Similar colors item from the measurement sub-menu.

A new window is displayed where you first click on the point you want to measure.  You can zoom in and out of the image using the mouse wheel.

Let’s say we want to select the whitish region here.

We first click anywhere in that region.  A polygon area is automatically created for us.

This initial selection contains only the area which has identical values to the point we clicked on.  To expand the selection to similar values, we adjust the tolerance slider on the left.

You can also adjust how smooth the shape is by adjusting the number of points used to form the selection.

Once we have finalized our selection, press the ESCAPE key.  We then return to our viewing screen with our selection, and the measurements for area, length, minimum, maximum, mean and standard deviation of the HU values in the selected area are displayed, together with the length of the longest axis and the longest line perpendicular to the longest axis.

You can still adjust the selection area by dragging or deleting any of the existing points.  You can also add additional points to the shape.

What if we only want to select part of the area with similar colors?  Let’s say we only wanted to measure the right side of the above region.  We can either adjust the shape after selecting the entire area, or we could use the Similar colors (selection) option.

The steps to select the region is identical to the Similar colors option, but you first define the region of the image you want to select from.  You do this by clicking and dragging the mouse to form a selection rectangle on the image, then release the mouse.

When you then enter the selection window, only the selected area is displayed.

Now we just need to click inside the area, adjust the tolerance values, and we’re done.  The selected area will be constrained accordingly in the final measurement.

Download a 14-day trial now of Easy DICOM Viewer and experience for yourself how easy it is to measure regions of similar colors in your DICOM images.

Easy DICOM Viewer is a collaborative effort between LISIT, Co., Ltd. and Yohz Software.  To learn more about Easy DICOM Viewer or download a trial, please use this link.  If you are in Japan, please use this link instead.

Viewing your DICOM images using the standard color palettes

In Easy DICOM Viewer, you can view your DICOM images using the standard color palettes easily – hot iron, hot metal blue, PET, PET 20 , and rainbow.

The fastest way to do that is by using the keyboard shortcut W.  When you first press W, you will enter the windowing mode.

When you are already in the windowing mode, pressing the W key again will cycle through the various color palettes.  In this way, you can easily apply the various color palettes fast.

You can also change the color profile using the sub-items of the windowing menu:

or from the context menu when in the windowing mode:

Download a 14-day trial now of Easy DICOM Viewer and experience for yourself how easy it is to apply the standard color profiles to your DICOM images.

Easy DICOM Viewer is a collaborative effort between LISIT, Co., Ltd. and Yohz Software.  To learn more about Easy DICOM Viewer or download a trial, please use this link.  If you are in Japan, please use this link instead.

 

Annotating your DICOM images

You can now add annotations to your images in Easy DICOM Viewer.  First, enter the annotations mode by clicking on the Add and edit annotations button on the toolbar, or use the keyboard shortcut (the T key).

In the DICOM image, right click to bring up the context menu, and select the Add text or Add line items.

Adding a text annotation

Click and drag anywhere in the image to create a text annotation.  You should see a rectangle with the words (annotation) displayed.

When you release the mouse, a bounding rectangle is displayed.

You can resize the annotation rectangle by clicking and dragging on any of the 6 yellow points.  You can also move the annotation by clicking and dragging inside the rectangle.  To change the text, double click inside the rectangle and write your text.

You can change the text color, size, and background color by changing the annotation settings on the toolbar.

Adding a line annotation

Click and drag anywhere on the image to create a line annotation.

You can click and drag on either point to change the start and end point of the line.   Adjust the line settings on the toolbar to change the line color and width.

Hiding annotations

If you don’t want to display the annotations temporarily, deselect the Display annotations item from the annotation mode button.

Deleting annotations

To delete an annotation, ensure that you’re in the annotation mode, then click on the annotation so that the bounding rectangle appears,  Press the DELETE key on the keyboard to remove the annotation.

Using the annotations

Annotations are automatically saved and displayed when you reopen the image.  You can copy the annotated images to the clipboard, or export the annotated images (PNG, JPG, BMP, GIF, etc) by selecting the appropriate action from the context menu.

Download a 14-day trial now of Easy DICOM Viewer and experience for yourself how easy it is to add annotations to your DICOM images.

Easy DICOM Viewer is a collaborative effort between LISIT, Co., Ltd. and Yohz Software.  To learn more about Easy DICOM Viewer or download a trial, please use this link.  If you are in Japan, please use this link instead.