RadiAnt DICOM Viewer - Version History
The beta version history is shown
RadiAnt DICOM Viewer 5.0.0 Beta
built on April 25, 2019
New features:
  • Local archive (database).
  • Export 3D model to STL.
  • This is the Release Candidate version.

RadiAnt DICOM Viewer 4.9.37 Beta
built on April 8, 2019
New features:
  • Local archive (database).
  • Export 3D model to STL.

Improvements and bug fixes:
  • Open RadiAnt DB files via: double-click in Explorer, drag&drop on the viewer/local archive or command line.

RadiAnt DICOM Viewer 4.9.36 Beta
built on April 7, 2019
New features:
  • Local archive (database).
  • Export 3D model to STL.

Improvements and bug fixes:
  • Support for relative link paths (for databases on removable drives).
  • Optimize database file (DB Menu>Advanced).
  • Option to start RadiAnt with the default DB opened (options.xml).
  • Option to show imported CD/DVD in the viewer automatically (options.xml).
  • Option to eject CD/DVD after import is finished (options.xml).
  • Unified open/create DB shortcuts in the viewer and local archive windows (Shift+F8/Ctrl+F8).
  • Updated CUDA library for GPU acceleration (latest NVIDIA drivers may be required).

RadiAnt DICOM Viewer 4.9.25 Beta
built on March 20, 2019
New features:
  • Local archive (database).
  • Export 3D model to STL.

Improvements and bug fixes:
  • Drag&drop DICOM folders and files into the local archive.
  • Free disk space indicator in the database window.

RadiAnt DICOM Viewer 4.9.17 Beta
built on January 29, 2019
New features:
  • Local archive (database).

Improvements and bug fixes:
  • Restored support for Windows XP.

RadiAnt DICOM Viewer 4.9.15 Beta
built on December 19, 2018
New features:
  • Local archive (database).

Improvements and bug fixes:
  • Import ZIP files into DB.
  • Added support for encrypted ZIP files (Zip 2.0, AES128, AES192, AES256).

RadiAnt DICOM Viewer 4.9.12 Beta
built on November 26, 2018
New features:
  • Local archive (database).

Improvements and bug fixes:
  • Export studies directly from the local archive.
  • Customizable columns in the list of studies (DB).
  • Improved support for scrolling with precision mouse/touchpad.

RadiAnt DICOM Viewer 4.9.10 Beta
built on November 13, 2018
New features:
  • Local archive (database).

Improvements and bug fixes:
  • Studies can be imported (or pushed) into the DB from other PACS nodes.

RadiAnt DICOM Viewer 4.9.8 Beta
built on October 30, 2018
New features:
  • Local archive (database).

Improvements and bug fixes:
  • Support for multiple databases.
  • Studies can be opened/added in active/new/separate windows.
  • "Date added" and "Date opened" fields were added for studies and series.

RadiAnt DICOM Viewer 4.9.5 Beta
built on October 16, 2018
New features:
  • Local archive (database).

RadiAnt DICOM Viewer 3.9.43 Beta
built on May 5, 2017
Improvements and bug fixes:
  • "-fl" command line parameter: radiantviewer.exe -fl filelist.txt - loads DICOM images specified in the text file (each dcm file in a new line).
  • Other minor improvements and bug fixes.

RadiAnt DICOM Viewer 3.9.40 Beta
built on April 14, 2017
New features:
  • Touch support in 3D MPR window: one finger - current left mouse button tool, two fingers - pan, zoom & roll, three fingers - window adjustment, four fingers - thickness adjustment.

Improvements and bug fixes:
  • More keyboard shortcuts in 3D MPR window: pan (Ctrl + arrows), zoom (Ctrl + +/-), roll (left/right), 3d rotation (Alt + arrows), full screen (F).
  • Display WL/WW values in lower left corner.

RadiAnt DICOM Viewer 3.9.38 Beta
built on April 5, 2017
New features:
  • Thickness tool button with dropdown menu (rendering modes).

Improvements and bug fixes:
  • Additional window adjustment options (dropdown menu).
  • Fill viewport (Ctrl + 0).

RadiAnt DICOM Viewer 3.9.37 Beta
built on March 25, 2017
New features:
  • Maximize/restore 3D MPR viewport (double click or Enter, use TAB to switch viewports)
  • 3D rotation tool (hold Alt and use left mouse button)
  • 2D rotation tool (hold Ctrl+Alt and use left mouse button)

RadiAnt DICOM Viewer 3.9.36 Beta
built on March 22, 2017
New features:
  • Save to JPEG and copy images in the 3D MPR window.

Improvements and bug fixes:
  • Enhanced settings for axes auto centering (always, only hidden, never).

RadiAnt DICOM Viewer 3.9.35 Beta
built on March 20, 2017
New features:
  • Change viewport layout in the 3D MPR window.

Improvements and bug fixes:
  • Usability improvements in 3D MPR module.
  • Fixed recurring trial activations requests.

RadiAnt DICOM Viewer 3.9.33 Beta
built on March 15, 2017
New features:
  • Toolbar button for axes control in 3D MPR window (visibility, auto centering).

RadiAnt DICOM Viewer 3.9.31 Beta
built on March 12, 2017
Improvements and bug fixes:
  • Improved axes movement in 3D MPR window - images in other viewports no longer "slide" during this operation.
  • Resolved minor bugs in activation mechanism.

RadiAnt DICOM Viewer 3.9.28 Beta
built on February 25, 2017
New features:
  • Length meaurements in 3D MPR.
  • New licensing module (trial licenses, serial numbers for paid licenses, online/offline activation). For testing purposes the trial licenses are valid for 7 days. Then, reactivation is required. This will be changed to 90 days when our beta tests are finished.

Improvements and bug fixes:
  • Different tools can be assigned to specific mouse buttons via a toolbar in the 3D MPR window.
  • Improved "split series" functionality (Ctrl + F5) - if no volumes are detected, the series is split into single images.
  • Improved WW/WL adjustment in the 3D VR window, with WW/WL display.
  • Added support for certain Philips US images.
  • General stability improvements.

RadiAnt DICOM Viewer 3.9.15 Beta
built on January 18, 2017
New features:
  • Oblique 3D MPR/MIP/MinIP/Avg

Improvements and bug fixes:
  • slab thickness can be changed by dragging white markers on axes
  • another way to change thickness: press SHIFT + CTRL and use left mouse button (move mouse up/down)
  • thickness and mode displayed in the bottom left corner, click it to switch between MIP/MinIP/Avg
  • mouse cursor changes depending on the currently active/available function
  • press F3 to hide/show axes in viewport under cursor

RadiAnt DICOM Viewer 3.5.5 Beta
built on October 23, 2016
New features:
  • All displayed images from multiple series can be copied to clipboard as one bitmap (Shift + C).

Improvements and bug fixes:
  • Added support for a specific type of ultrasound images (Aloka).
  • Improved support for MPR and fusion with certain SPECT/CT images (GE Infinia).
  • NM images now behave similarly to PET images when adjusting intensity scale.
  • Fixed: -wp command line parameter failed to move window to secondary monitor.
  • Added -sp command line parameter for setting the default split screen preset (-sp colnum rownum), this can also be set via options.xml file.

RadiAnt DICOM Viewer 3.1.10 Beta
built on May 4, 2016
New features:
  • Support for encapsulated PDF documents (in an external viewer).
  • Support for MPEG-2 / MPEG-4 DICOM files (in an external media player).
  • New measurement tool: Deviation.

Improvements and bug fixes:
  • Changed shortcut for hiding the series preview bar (CTRL + ALT + F2), previously collided with RadiAnt exit (CTRL + ALT + F4).

RadiAnt DICOM Viewer 3.1.7 Beta
built on April 27, 2016
New features:
  • Keyboard shortcuts customization (drop-down menu from the Help icon).

Improvements and bug fixes:
  • Several PACS locations and modalities can be chosen in the PACS search window (using checkboxes).
  • Improved support for PACS servers prematurely releasing C-MOVE association.
  • Support for the SERIES and IMAGE levels, and several AE titles while retrieving studies from PACS locations via command line parameters.
  • Keyboard shortcuts can be assigned to different split screen presets.

RadiAnt DICOM Viewer 2.9.5 Beta
built on March 18, 2016
New features:
  • New actions in the VR window:
  • Restore volume (Ctrl + Alt + 0)
  • Fit volume (Ctrl + 0)
  • Default window (0)
  • Reset scene (Ctrl + R) -> applies all the above

RadiAnt DICOM Viewer 2.9.2 Beta
built on March 5, 2016
New features:
  • Length measurement in 3D VR image.

Improvements and bug fixes:
  • Improved stability.

RadiAnt DICOM Viewer 2.9.1 Beta
built on February 24, 2016
New features:
  • Save 3D VR image as JPEG.
  • Copy 3D VR image to Clipboard.

RadiAnt DICOM Viewer 2.7.9 Beta
built on January 20, 2016
Improvements and bug fixes:
  • Performance improvements.

RadiAnt DICOM Viewer 2.7.8 Beta
built on December 20, 2015
New features:
  • Added support for multi-touch in the VR window (one finger - 3D rotate, two fingers - pan, zoom, roll, three fingers - adjust window).
  • Added Roll tool - rotation around Z-axis.
  • Added dedicated icon for Volume Rendering.
  • Added toolbar in the VR window - the tools can be assigned to different mouse buttons.
  • Full screen mode in the VR window.

Improvements and bug fixes:
  • Performance improvements in the Volume Rendering feature.
  • Improved support for volumes with inconsistent slice spacing (a warning is shown when interpolation is necessary).

RadiAnt DICOM Viewer 2.7.4 Beta
built on November 11, 2015
New features:
  • Added display of the orientation cube and the camera angles in the VR window.
  • Rotate volume with the arrow keys.

RadiAnt DICOM Viewer 2.7.1 Beta
built on October 17, 2015
New features:
  • Added support for SR (Structured Reports) Documents
  • Added display of directions in the VR window

RadiAnt DICOM Viewer 2.5.6 Beta
built on September 29, 2015
New features:
  • Volume Rendering (VR)

RadiAnt DICOM Viewer 2.0.7 RC
built on September 10, 2015
New features:
  • PACS locations can now be verified thanks to C-ECHO support (SCU and SCP). Use F2 or click the green tick icon in the PACS configuration window.

RadiAnt DICOM Viewer 2.0.6 RC
built on September 3, 2015
New features:
  • This is the release candidate version with the PACS client feature.
  • Added support for multiple transfer syntaxes in PACS transfers (previously only Implicit VR LE was supported, which sometimes caused problems with specific PACS implementations).
  • The preferred transfer syntax can be set for each of the PACS hosts - go to PACS options and use right mouse button to show a popup menu on the selected host.

Improvements and bug fixes:
  • Corrected bug which sometimes caused PACS downloads to end prematurely.
  • The default color lookup table for PET fusion was changed from rainbow to hot iron.
  • Certain features and toolbar buttons can be disabled in the options.xml file.

RadiAnt DICOM Viewer 1.99.53 Beta
built on July 1, 2015
New features:
  • The maximum number of active downloads can be set for each of the PACS hosts indepentently. Use right mouse click in the PACS configuration window and choose the desired value from the popup menu (1-4, 1 is the default setting).

Improvements and bug fixes:
  • Hard disk and memory usage is better controlled when downloading studies from PACS locations to multiple windows without closing application for a longer time.

RadiAnt DICOM Viewer 1.99.51 Beta
built on June 28, 2015
New features:
  • New integration possibilities - command line parameters for searching and downloading studies from PACS nodes using specified DICOM tags:
  • The argument "-pstv" is followed by one or more pairs of tag ID/value: RadiAntViewer.exe -pstv 00080050 "1412-14-ACCESSION-NUMBER"
  • By default all PACS nodes configured in RadiAnt are searched. You can define only one PACS node by using "-paet" and its AE title: RadiAntViewer.exe -paet MYPACSAETITLE -pstv 0020000D ""

RadiAnt DICOM Viewer 1.99.47 Beta
built on June 23, 2015
New features:
  • Different modes of PACS downloads under right-click popup menu on the search results:
  • "Download" (Enter) -> clears active window, downloads and displays selected studies in this window.
  • "Add to active window" (Shift+Enter) -> downloads studies to the active window without clearing it.
  • "Download to new window" (Ctrl+Enter) -> downloads selected studies into a new window.
  • "Download to separate windows" (Ctrl+Shift+Enter) -> each of the selected studies is downloaded into a separate window.
  • This popup menu contains also "Find all studies of this patient" (Ctrl+P) -> performs a search using the patient ID field of the selected study.

Improvements and bug fixes:
  • The translation creator is updated with all new texts from pacs windows.
  • RadiAnt is automatically restarted after new language is chosen or a license key is imported.
  • Fixed "Exit application" shortcut - Ctrl+Alt+F4.
  • Fixed disappearing cross-reference lines when RadiAnt window lost focus.
  • Fixed some command-line parameters (-b, -wp, -cl).
  • Fixed disappearing split popup window.
  • Fixed drawing of the progress bars in the downloads list (WinXP).
  • Under Windows XP, the Service Pack 3 is now required during setup.

RadiAnt DICOM Viewer 1.99.43 Beta
built on June 16, 2015
New features:
  • "Duplicate window" feature (CTRL+SHIFT+N) - opens new viewer window with the same image series as in the active window.
  • "Exit" menu item in popup menu under "Folder" toolbar button. If multiple windows are opened, application exit can be also achieved by pressing CTRL key while closing one of the RadiAnt windows.

Improvements and bug fixes:
  • Maximum number of opened viewer windows increased to 16.
  • New RadiAnt windows are "cascaded" so that old windows are not completely obscured.
  • Improved positioning of the PACS search window in a multi-monitor setting.
  • Fixed issues with opening multiple windows.
  • Fixed cross reference lines in multiple windows.
  • Toggle annotations, hide patient data, mouse tool selection work in multiple windows.
  • Fixed drag&drop folder and files to RadiAnt running with admin privileges.
  • Fixed rare crash while exiting RadiAnt with multiple opened windows.
  • Improved memory management.

RadiAnt DICOM Viewer 1.99.39 Beta
built on June 12, 2015
Improvements and bug fixes:
  • Support for multiple windows is back in this beta version. Just double-click RadiAnt desktop icon to open a new window, or use CTRL + N shortcut from within the application.
  • Fixed display of rare ultrasound images.
  • Enhanced support for compressed images.
  • Fixed cancelling of image export.
  • Fixed some obscure bugs leading to program crashes.

RadiAnt DICOM Viewer 1.99.24 Beta
built on March 8, 2015
New features:
  • Added dedicated window presets for PET modality (0.5, 1, 2.5, 5, 10, 25, 50 and 100 percent of total dynamic range).

Improvements and bug fixes:
  • In series consisting of multiple volumes (sequences), MPR is applied to the volume whose frame is currently displayed.
  • Improved display of PET images with small pixel values (especially those without attenuation correction).
  • Improved calculation of the default contrast/brightness values for PET images.
  • Fixed MPR and Fusion functionality for special type of PET images (Siemens scanner).
  • Improved export of all opened series.
  • When the viewer is running and the RadiAnt icon is clicked, the viewer window is restored to the foreground (the restriction of only one instance is still present).

RadiAnt DICOM Viewer 1.99.18 Beta
built on May 20, 2014
New features:
  • PACS client functionality.

Improvements and bug fixes:
  • Improved stability, lowered memory usage, other small fixes.

RadiAnt DICOM Viewer 1.7.7 Beta
built on April 30, 2013
Improvements and bug fixes:
  • Pet20 color scale.
  • Displayed info about compressed DICOM images (left top corner, below series number).
  • CTRL + C copies value to clipboard in DICOM tags window.
  • Scroll wrapping can be disabled in options.xml file.
  • Other small fixes.

RadiAnt DICOM Viewer 1.7.6 Beta
built on April 25, 2013
Improvements and bug fixes:
  • Significant reduction of CD/DVD loading times.
  • Further refinements in large multi-frame files handling.
  • Fixed problem with opening zip files that have non-standard characters in a filename.
  • New command-line parameter "-cl" closes all running instances of RadiAnt DICOM Viewer.
  • Detection of CD/DVD/Flash removal - to remedy problems with opening consecutive CDs without restarting RadiAnt.

RadiAnt DICOM Viewer 1.5.10 Beta
built on April 2, 2013
New features:
  • New controls for CINE, overlayed at the bottom of the screen when mouse hovers over image.
  • Cine auto start for US and XA series.

Improvements and bug fixes:
  • Improved multiframe DICOM file reading from CD/DVD.
  • Toggle series preview bar visibility (CTRL+SHIFT+F4).
  • Toggle toolbar and status bar visibility (CTRL+SHIFT+F3).
  • Toggle ROI visibility (ALT+F12).
  • Change ROI label font size (CTRL+SHIFT+PLUS/MINUS).
  • Fixed patient data anonimization in series preview bar hints.

RadiAnt DICOM Viewer 1.5.7 Beta
built on March 16, 2013
New features:
  • Open quickly multiple series (F4).
  • Close all panels (SHIFT + F4).
  • Open DICOM folder in RadiAnt using right-click context menu on a folder in windows explorer.

Improvements and bug fixes:
  • Other minor bug fixes.

RadiAnt DICOM Viewer 1.5.5 Beta
built on March 1, 2013
New features:
  • Tools can be assigned to the middle mouse button (with WL/WW adjustment default).
  • Command line parameter -b shows expanded folder tree, lets user choose a subfolder to be scanned for DICOM files.
  • ROI can be duplicated in all images of the series.

Improvements and bug fixes:
  • Source images with ellipse ROI used for calculations are added to the series with a time-intensity curve.
  • Other minor features and bug fixes.

RadiAnt DICOM Viewer 1.5.1 Beta
built on January 12, 2013
New features:
  • Multi-touch support for Windows 8 touch-enabled devices.
  • Use one finger to browse images of the series.
  • Use two fingers to pan and zoom (pinch) images.
  • Use three fingers to change window settings (brightness/contrast).

Improvements and bug fixes:
  • Compatibility with Windows Server 2008 system was improved by removing the dependency on wmvcore.dll library.

RadiAnt DICOM Viewer 1.3.9 Beta
built on November 15, 2012
New features:
  • Time-Intensity Curve generation (CTRL + SHIFT + E).
  • Zoom & pan synchronization.
  • Window (WW/WL) synchronization.
  • Duplicate ROI in corresponding series (CTRL + SHIFT + D).
  • Delete ROIs in all visible images (SHIFT + DEL).
  • Change color scale in fusion images (click color bar).
  • Change fused image opacity (left mouse button down and drag over color bar).
  • Maximize/restore panel (button/double click on image/CTRL + M), you can switch between opened series in maximized panel using TAB.
  • Anonimize all visible patient data (SHIFT + F12).

Improvements and bug fixes:
  • Synchronization settings in split screen button popup menu.
  • Status bar shows remaining files during folder scan.
  • Click panel close button with CTRL pressed to clear the panel instead of closing it.
  • Added WW/WL presets for modalities other than CT.
  • Hold CTRL during ellipse drawing to show actual DICOM pixels area (only when image is magnified).
  • Ellipse ROI label shows actual DICOM pixels number used for calculations.
  • Options.xml file (ProgramData/RadiAntViewer folder in Windows7) - change default options (currently only by manual editing).
  • Zoom-to-region mode for zooming tool (available in options.xml).
  • Off-center zooming (retains desired image region visibility during zooming - available in options.xml).
  • Other minor improvements and bug fixes.

RadiAnt DICOM Viewer 1.2.7 Beta
built on October 3, 2012
New features:
  • Copy & Paste of ROIs - CTRL + C copies selected ROI, CTRL + SHIFT + C copies all ROIs in displayed image, CTRL + V pastes ROI(s) in the same or in different image.

Improvements and bug fixes:
  • Hold SHIFT during ellipse drawing to make it a circle, hold it while drawing a segment to make it horizontal or vertical.
  • Improved support for images with VOI LUT defined.

RadiAnt DICOM Viewer 1.2.3 Beta
built on September 9, 2012
New features:
  • Export files in DICOM format.

Improvements and bug fixes:
  • Fixed a rare crash caused by images with "RAW" modality.

RadiAnt DICOM Viewer 1.1.7 Beta
built on August 24, 2012
Improvements and bug fixes:
  • Fixed ellipse ROI calculations in fusion MPR (coronal and sagittal) images.
  • Further 32-bit version improvements:
  • Better memory management.
  • Faster DICOM load and export times.

RadiAnt DICOM Viewer 1.1.3 Beta
built on August 16, 2012
New features:
  • SD (standard deviation) calculation in ellipse ROI.

Improvements and bug fixes:
  • Better support for the new enhanced multi-frame DICOM CT and MR files - measurements, default window parameters, auto synchronization, cross reference lines, MPR and fusion should now work properly.
  • Significantly improved performance of a 32-bit version while reading and exporting large number of DICOM files.

RadiAnt DICOM Viewer 1.0.2 Beta
built on April 3, 2012
New features:
  • Movable ROI labels (length, ellipse, angle, Cobb angle).
  • SUVbw measurement using the ellipse tool in fused PET-CT images.

RadiAnt DICOM Viewer 0.99.3 Beta
built on March 19, 2012
New features:
  • Disable cross reference lines.
  • Disable auto synchronization.
  • More zoom presets (200, 400, 800%).
  • New program icon, logo and ant character.
  • A window to let users know that they can actually buy RadiAnt ;-)

RadiAnt DICOM Viewer 0.95.1 Beta
built on February 20, 2012
New features:
  • Angle measurement.
  • Cobb angle measurement.
  • New window splitting tool.
  • Export of fused images.

Improvements and bug fixes:
  • A few bug corrections.

RadiAnt DICOM Viewer 0.90.2 Beta
built on January 30, 2012
New features:
  • PET-CT fusion (other image types can be also fused).
  • Screen splitting with a predefined column/row number (drag and drop series thumbnail images into viewports).
  • DICOM tags inspection window (CTRL+ALT+T).

RadiAnt DICOM Viewer 0.70.2 Beta
built on December 4, 2011
New features:
  • MPR function - hidden under CTRL + ALT + 1 (coronal) or + 2 (sagittal) or + 3 (axial).