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Smart. Easy. Fast.
RadiAnt is a PACS DICOM viewer for medical images
designed to provide you with a unique experience.
With its intuitive interface and unrivaled performance,
you'll never look back.
"(...) What I also accidentally discovered is an extremely lightweight DICOM viewer with basic viewing options - perfect for being CD distribution, called RadiAnt. (...) As 3 year radiology resident I have already seen dozens of bundled viewers on CDs... this one is at least 300% faster than any I've seen so far. It also allows you to include your own company logo to the splash screen it shows while loading."
NiksaVel
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Did you know? RadiAnt DICOM Viewer has been named researchers' tool of choice in more than 1500 scientific papers.
Learn how to cite RadiAnt in academic publications.
Special Offer
April 19, 2021
Special Offer
Recently we discontinued permanent licenses for RadiAnt DICOM Viewer and moved to the subscription licensing model.

What does this mean for the owners of permanent licenses purchased during last ten years? Their licenses will remain permanent and will allow to use all versions released within their maintenance period without additional fees. New versions released after the expiration of the maintenance will require purchasing a subscription plan.

Our special offer enables everyone who owns a permanent license with the expired support to purchase a subscription plan with almost 50% discount. Just log in to My Licenses portal and take advantage of this offer.
Subscription Plans
December 30, 2020
Subscription Plans
We are happy to announce the addition of a more affordable option to purchase RadiAnt DICOM Viewer - the Subscription Plans. They are effectively time-based licenses giving you access to the software and all updates for the duration of the pre-paid plan. For those of you who prefer permanent licenses, the one-time payment option is still available for a limited time.

As this strange and difficult year draws to a close, we would like to take this opportunity and wish you all the best for the New Year. Stay strong, healthy and hopeful for the brighter future!
RadiAnt DICOM Viewer 2020.2
November 11, 2020
RadiAnt DICOM Viewer 2020.2
RadiAnt DICOM Viewer 2020.2 has been available for download for some time now.

This versions brings DSA (Digital Subtraction Angiography) to the table. There is an option to set the precise WL/WW values (or SUVbw for PET studies) and to easily create own windowing presets (in 2D, 3D MPR and 3D VR viewers). We have also listened to your requests and made possible to download specific image series from PACS servers instead of only complete studies. As usually, there are other minor improvements and bug fixes.

Check the full changelog and download here.
RadiAnt DICOM Viewer 2020.1
April 6, 2020
RadiAnt DICOM Viewer 2020.1
RadiAnt DICOM Viewer 2020.1 is now available for download.

We added three new ROIs in this version: closed polygon, open polygon and arrow. 3D MPR view was improved by adding ROIs previously available only in the 2D mode (ellipse, angle). SUVbw measurements are now available without the requirement to enable fusion mode. A dedicated 64-bit ARM version for the new generation of Windows 10 on ARM devices (e.g., Surface Pro X) is included in the installer. These are a few highlights, for the complete list of changes check the download page.

Take care and stay strong and healthy in these trying times!
How to create a DICOM CD with RadiAnt DICOM Viewer CD/DVD
October 29, 2019
How to create a DICOM CD with RadiAnt DICOM Viewer CD/DVD
In our latest video tutorial we show how to create a DICOM CD disc with our RadiAnt serving as the autorun viewer. A PC with Windows 10 system and the DVD-RW drive installed was used in the presentation.

You can also use professional CD/DVD disc publishers (e.g., Epson, Primera, Rimage) but you still might want to check the tutorial to make sure that the file and folder structure of your recorded disc is correct.

https://www.youtube.com/watch?v=iJAV-rkfjkU
Curved MPR
59 minutes ago by Dan
RadiAnt DICOM Viewer 2021.1 BETA
12 hours ago by marcelvn
License
3 days ago by RadiAnt
Multiple formats of DICOM files supported

Supports multiple DICOM file types

The software has the capability to open and display studies obtained from different imaging modalities:

  • Digital Radiography (CR, DX)
  • Mammography (MG)
  • Computed Tomography (CT)
  • Magnetic Resonance (MR)
  • Positron Emission Tomography PET-CT (PT)
  • Ultrasonography (US)
  • Digital Angiography (XA)
  • Gamma Camera, Nuclear Medicine (NM)
  • Secondary Pictures and Scanned Images (SC)
  • Structured Reports (SR)

Many types of DICOM images are supported:
  • Monochromatic (e.g. CR, CT, MR) and color (e.g. US, 3D reconstructions)
  • Static images (e.g. CR, MG, CT) and dynamic sequences (e.g. XA, US)
  • Uncompressed and compressed (RLE, JPEG Lossy, JPEG Lossless, JPEG 2000)

Basic tools for manipulation of images

All the necessary tools close at hand

RadiAnt DICOM Viewer provides the following basic tools for the manipulation and measurement of images:

  • Fluid zooming and panning
  • Brightness and contrast adjustments, negative mode
  • Preset window settings for Computed Tomography (lung, bone, etc.)
  • Ability to rotate (90, 180 degrees) or flip (horizontal and vertical) images
  • Segment length
  • Mean, minimum and maximum parameter values (e.g. density in Hounsfield Units in Computed Tomography) within circle/ellipse and its area
  • Angle value (normal and Cobb angle)
  • Pen tool for freehand drawing

Lightning fast performance

Quick as lightning

RadiAnt DICOM Viewer was designed to use resources as efficiently as possible. It can make use of a multiprocessor and multicore system with large amounts of gigabytes of RAM, but will also run on an old single-core machine with only 512MB RAM.

A 64-bit version is provided for modern systems to keep all opened images in more than 4GB of memory, if necessary. Asynchronous reading lets you browse and process images while they are still being opened.

All of this is available in one very compact application that has an installer size of just over 7MB.

Browse and compare multiple series of images

Compare different series or studies

Multiple series of one study or several studies can be concurrently opened in the same or different windows for comparison purposes.

Series consisting of images that have been acquired in the same plane (e.g. Computed Tomography series before and after administration of the contrast medium) are automatically synchronized by default.

Cross-reference lines are displayed for better correlation of the anatomy when browsing series with different image planes (e.g. Magnetic Resonance study).

PACS client feature for searching and retrieving studies

Search and download studies from PACS locations

The PACS (Picture Archiving and Communication System) client feature lets RadiAnt DICOM Viewer query and retrieve studies from other PACS hosts.

Supported service class users/providers are: C-ECHO SCU, C-ECHO SCP, C-FIND SCU, C-MOVE-SCU, C-STORE-SCP.

Received DICOM files can be stored in a temporary folder and deleted when RadiAnt closes, or they can be saved in the local database.

Local archive

Local archive

The local archive feature allows you to import DICOM studies from CD/DVD discs, USB flash drives, local and network folders or PACS servers, and store them on your local hard drive so that they can be easily accessed at a later date.

The local archive can be helpful in situations in which the original media is no longer available, or you would like to open the study without the need to repeatedly retrieve it from a PACS server.

You can also access the database to organize and quickly find studies in your collection of DICOM files that are stored on the hard drive.

Export DICOM files to BMP, JPEG, WMV

Export DICOM files to images and movies

Create visually stunning presentations and professional publications - RadiAnt DICOM Viewer can export DICOM files to JPEG (compressed) or BMP (uncompressed bitmap) images and WMV (Windows Media Video) movies.

One image, an entire series or all opened images can be exported simultaneously.

Displayed images can be quickly copied to the Windows clipboard using the CTRL+C shortcut and can be quickly and easily pasted into Word or PowerPoint documents.

2D and 3D Multi-planar reconstructions (MPR)

Multiplanar reconstructions

The MPR tool provided within RadiAnt DICOM Viewer can be used to reconstruct images in orthogonal planes (coronal, sagittal, axial or oblique, depending on what the base image plane is). This can help to create a new perception of the anatomy that was not possible to visualize using the base images alone.

The reconstruction process is extremely fast: a coronal series can be created from more than 2000 axial CT slices in approximately three seconds (on a modern Intel Core i7 system).

3D Volume Rendering (VR)

3D volume rendering

The 3D VR (volume rendering) tool lets you visualize large volumes of data generated by modern CT/MR scanners in three dimensional space. The different aspects of the data set can be interactively explored in the 3D VR window.

This tool lets you rotate the volume, change zoom level and position, adjust color and opacity, measure length and show hidden structures by cutting off the unwanted parts of the volume with the scalpel tool. The image is rendered progressively to maintain fluid operations even on slower machines.

PET-CT image fusion

PET-CT image fusion

Overlay a color-mapped PET image onto a CT scan to obtain anatomical references for regions with increased FDG (fluorodeoxyglucose) uptake values.

Use the ellipse tool to measure maximum, minimum and average values of SUVbw (Standardized Uptake Value calculated using body weight) in a specified area.

Image fusion can also be applied to other imaging modalities, such as Magnetic Resonance, e.g. DWI images can be fused with T1 or T2-weighted scans.

Digital Subtraction Angiography (DSA)

Digital Subtraction Angiography

The Digital Subtraction Angiography (DSA) technique can be applied to a fluoroscopy series (XA) to allow you to visualize blood vessels better.

The pre-contrast image (so-called mask) is subtracted from the subsequent images in which the arteries/veins are filled with the contrast media and, thus, the bony or dense soft-tissue areas are removed from the final image.

The auto pixel-shift feature lets you automatically correct the alignment of the mask and the live image simply by selecting the area of interest.

Time-intensity curves (TIC)

Time-intensity curves

RadiAnt DICOM Viewer lets you visualize the lesions' enhancement behavior (e.g. in Breast MRI) by plotting time-intensity curves (TICs).

Different types of curves can be obtained: Ia - straight (the signal intensity continues to increase over the entire dynamic period) / Ib - curved (the time-signal intensity curve is flattened in the late postcontrast period), II - plateau (the signal intensity plateaus in the intermediate and late postcontrast periods) or III - washout (the signal intensity decreases (washes out) in the intermediate postcontrast period).

Support for multitouch features on Windows 10

Multi-touch support

If you have a Windows 8 or Windows 10 touch-enabled device, you might find that gestures (motions that you make with one, two or more fingers) are easier to use than a mouse or keyboard. RadiAnt DICOM Viewer enables users to make use of the array of multi-touch gestures:

  • Touch the image with one finger and move it to browse through images of the displayed series.
  • To zoom in or out, touch two points on the image, and then move your fingers away from or toward each other. Drag the image with two fingers to move it and show invisible parts of zoomed image.
  • You can change the window settings (brightness/contrast) by touching the image with three fingers and moving them up/down (brightness) or left/right (contrast).

Multilingual interface - community translations

Multilingual interface

Thanks to our community, RadiAnt DICOM Viewer interface has been translated into over 20 languages so far:

  • Arabic, Brazilian Portuguese, Bulgarian, Chinese, Czech, Danish, Dutch/Flemish, French, German, Greek, Hungarian, Indonesian, Italian, Polish, Portuguese, Russian, Serbian, Slovak, Spanish, Swedish, Turkish.

Our online tool makes it easy to edit the current translations and create new ones.

RadiAnt DICOM Viewer CD/DVD Viewer

DICOM CD/DVD/USB Viewer

Do you know how frustrating it can be to endlessly wait for a CD with the DICOM study to open?
Does your viewer require the installation of additional components before the images can actually be viewed?

Try the RadiAnt DICOM Viewer CD/DVD autorun package! It is extremely fast, runs from CD/DVD media without installation on Windows XP SP3, Vista, Windows 7, Windows 8, Windows 8.1 and Windows 10 systems and does not have any additional software or programming requirements (e.g. .NET, Java).

If the user’s operating system permits, the 64-bit version is opened for better efficiency. On older machines the 32-bit version is used. Approximately just 6MB of overhead data is added to the media.

The logo image displayed after opening the application is fully customizable and can be used to show your company information to your clients.