RadiAnt DICOM Viewer - Version History
RadiAnt DICOM Viewer 3.4.1
build on September 14, 2016
New features:
  • Manual series synchronization (slice position, zoom&pan, window settings).
  • Separate toolbar button for changing synchronization mode.
  • New functionalities in the DICOM tags window: search text, copy all items, copy selected item, show DICOM file in explorer.
  • 3D Volume Rendering and 2D MPR now work with CT series acquired with tilted gantry.

Improvements and bug fixes:
  • Improved auto synchronization - non-parallel series with a dihedral angle up to 5 degrees are now synchronized automatically.
  • Fixed: the encapsulated MPEG videos were not opened properly without VLC installed.
  • Quicker series thumbnail generation when multiple series are located in one folder and the DICOMDIR file is present.
  • Other performance improvements.

RadiAnt DICOM Viewer 3.2.3
build on July 24, 2016
Improvements and bug fixes:
  • Sorting mode of studies in the series preview bar can be changed to "newest first" via options.xml file.
  • Fixed: cine loops exported to WMV files had sometimes incorrect frame rate.
  • Fixed: ejecting removable media could cause crash when the "import license" window was shown.

RadiAnt DICOM Viewer 3.2.2
build on June 2, 2016
New features:
  • Support for the encapsulated PDF documents (opened in an external viewer).
  • Support for the MPEG-2 / MPEG-4 DICOM files (opened in an external media player).
  • New measurement tool: Deviation.
  • Keyboard shortcuts customization (drop-down menu from the Help icon).

Improvements and bug fixes:
  • Added support for small values in the ellipse and length measurements.

RadiAnt DICOM Viewer 3.0.2
build on April 12, 2016
New features:
  • 3D Volume Rendering.

Improvements and bug fixes:
  • Added support for extended characters sets in PACS search result list (Chinese, Japanese, etc.)
  • Negative mode can be enabled by default for NM (Nuclear Medicine) images via the options.xml file.
  • Last export destination folder is remembered after closing RadiAnt.
  • Option to accept all presentation contexts during association with a PACS host.
  • Improved stability and efficiency.
  • Fixed: exported files are not overwritten during subsequent exports to the same folder.
  • Fixed: sometimes the PACS host's IP address was not resolved properly and the connection could not be established.
  • Fixed: a bad date in a DICOM file could cause RadiAnt crash.
  • Fixed: a specific type of JPEG LS compressed images was not displayed.

RadiAnt DICOM Viewer 2.2.9
build on December 28, 2015
Improvements and bug fixes:
  • Fixed issue that caused DICOM files retrieved from PACS locations and then exported in DICOM format sometimes could not be opened in other viewers.
  • Fixed issue with measurements showing 0mm in images obtained from Philips Achieva MRI scanner.

RadiAnt DICOM Viewer 2.2.8
build on December 2, 2015
Improvements and bug fixes:
  • Improved support for a specific type of DICOM images (HITACHI MRI).
  • Improved performance and stability.
  • Fixed a bug that sometimes caused incomplete PACS downloads.
  • Fixed a bug that could result in an unsuccessful association with a PACS peer.
  • Fixed a rare crash while scanning for DICOM files.

RadiAnt DICOM Viewer 2.2.5
build on November 19, 2015
Improvements and bug fixes:
  • Improved support for legacy DICOM overlays.
  • Fixed rare crashes on Windows 7 64-bit without SP1.
  • Fixed rare crashes on Windows XP 32-bit with older CPUs.

RadiAnt DICOM Viewer 2.2.4
build on November 14, 2015
Improvements and bug fixes:
  • Improved support for specific DICOM files (Philips Intera MRI, GE Optima MRI).

RadiAnt DICOM Viewer 2.2.3
build on November 2, 2015
New features:
  • Support for the SR (Structured Reporting) Documents.
    Press Enter to display a SR DICOM file in the HTML browser.

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

RadiAnt DICOM Viewer 2.0.12
build on October 6, 2015
New features:
  • PACS client functionality - search and download studies from PACS servers/workstations/modalities.
  • New integration possibilities - command line parameters for searching and downloading studies from PACS nodes using specified DICOM tags.
  • "Split series" feature detects multiple volumes contained in one series (e.g. arterial/venous post-contrast, DWI, cardiac CT multi-phase) and opens them in separate panels.
  • "Duplicate window" feature (CTRL+SHIFT+N) - opens a new viewer window with the same image series as in the active window.
  • Series from the same study opened in multiple windows can now be synchronized and fused. Also, cross-reference lines are supported across multiple windows.
  • Dedicated window presets for PET modality (0.5, 1, 2.5, 5, 10, 25, 50 and 100 percent of the entire dynamic range of the displayed series).

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.
  • Default color look-up table for PET changed to Hot Iron.
  • Fixed MPR and Fusion functionality for special type of PET images (Siemens scanner).
  • Improved export of all opened series.
  • "Exit" menu item in popup menu under "Folder" toolbar button (Ctrl+Alt+F4). If multiple windows are opened, application can be also closed by pressing CTRL key while closing one of the RadiAnt windows.
  • RadiAnt is automatically restarted after new language is chosen or a license key is imported.
  • Enhanced support for compressed images.
  • Fixed display of rare ultrasound images.
  • Fixed drag&drop folder and files to RadiAnt running with admin privileges.
  • Under Windows XP, the Service Pack 3 is now required during setup.
  • Improved stability, lowered memory usage, other small fixes.

RadiAnt DICOM Viewer 1.9.16
build on May 23, 2014
Improvements and bug fixes:
  • Improved support for SPECT-CT studies (synchronization, MPR, fusion).
  • Improved automatic synchronization of series with small difference in patient orientation (e.g. MR).
  • Added support for a rare type of dicom files with little endian implicit transfer syntax.
  • Fixed ocassional crash of the viewer.
  • Other minor improvements.

RadiAnt DICOM Viewer 1.9.14
build on January 10, 2014
Improvements and bug fixes:
  • Fixed display of certain types of images with PALETTE COLOR photometric interpretation.
  • Fixed display of rare type of images with big endian transfer syntax.
  • Other minor improvements.

RadiAnt DICOM Viewer 1.9.10
build on October 27, 2013
New features:
  • Support for length measurement using estimated radiographic magnification factor (e.g. in mammography images).

Improvements and bug fixes:
  • Enhanced PET SUV measurements (e.g. Philips scanners support).
  • Fixed display of certain types of images with VOI LUT.
  • Other minor improvements.

RadiAnt DICOM Viewer 1.9.4
build on September 22, 2013
New features:
  • Customizable annotations.
  • Support for manual length calibration.
  • US calibrated regions support (length or other parameters such as time, velocity, depending on the region).

Improvements and bug fixes:
  • Imager pixel spacing is used for measurements when available (which is often the case for XA images).
  • Faster opening of large image series from cd/dvd media (in systems low on memory)
  • Fixed handling of certain JPEG2000 DICOM files.
  • Fixed visual artifacts in ROI elements in exported images.
  • Improvements in DICOM tags preview window (fixed incidental crashes, enhanced tag descriptions, corrected display of tags with multiple numerical values).
  • Other minor improvements.

RadiAnt DICOM Viewer 1.8.6
build on May 23, 2013
New features:
  • Multi-touch support for Windows 8 touch-enabled devices:
  • Use one finger to browse images of the series (or perform other function selected from the toolbar).
  • Use two fingers to pan and zoom (pinch) images.
  • Use three fingers to change window settings (brightness/contrast).
  • Time-Intensity Curve generation (CTRL + SHIFT + E).
  • Export files in DICOM format.
  • Zoom & pan synchronization.
  • Window settings (WW/WL) synchronization.
  • New controls for Cine mode, overlayed at the bottom of the screen when mouse hovers over image.
  • Cine auto start for US and XA series.
  • Edit ROIs:
  • Copy selected ROI (CTRL + C)
  • Copy all ROIs in displayed image (CTRL + SHIFT + C)
  • Paste ROI(s) in the same or in different image (CTRL + V)
  • Duplicate ROI in corresponding series (CTRL + SHIFT + D)
  • Duplicate ROI in all images of the series (SHIFT + ALT + D)
  • Delete ROIs in all visible images (SHIFT + DEL)
  • Open quickly multiple series (F4).
  • 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).
  • Tools can be assigned to the middle mouse button (with WL/WW adjustment default).
  • Open DICOM folder in RadiAnt using right-click context menu on a folder in windows explorer.
  • Command line parameter -b shows expanded folder tree, lets user choose a subfolder to be scanned for DICOM files.
  • New command-line parameter "-cl" closes all running instances of RadiAnt DICOM Viewer.

Improvements and bug fixes:
  • Significant reduction of CD/DVD loading times (up to 3x faster).
  • Improved multiframe DICOM file reading from CD/DVD.
  • Detection of CD/DVD/Flash removal.
  • 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).
  • Hold SHIFT during ellipse drawing to make it a circle, hold it while drawing a segment to make it horizontal or vertical.
  • 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.
  • Close all panels (SHIFT + F4).
  • Click panel close button with CTRL pressed to clear the panel instead of closing it.
  • 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).
  • Scroll wrapping can be disabled in options.xml file.
  • Added WW/WL presets for modalities other than CT.
  • Status bar shows remaining files during folder scan.
  • Displayed info about lossy compression of DICOM images (left top corner, below series number).
  • CTRL + C copies value to clipboard in DICOM tags window.
  • Improved support for images with VOI LUT defined.
  • Fixed a rare crash caused by images with "RAW" modality.
  • Fixed display of certain US images (e.g. Philips US systems, GE Vivid 7).
  • Fixed default cine rate setting (FPS).
  • Fixed problem with opening zip files that have non-standard characters in a filename.
  • Compatibility with Windows Server 2008 system was improved by removing the dependency on wmvcore.dll library.
  • Other minor features and bug fixes.

RadiAnt DICOM Viewer 1.1.8
build on August 29, 2012
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 image fusion.
  • SD (standard deviation) calculation in ellipse ROI.
  • Fixed issue with ellipse ROI calculations in fusion MPR (coronal and sagittal) images.
  • Faster DICOM load and export times.
  • Better memory management.

RadiAnt DICOM Viewer 1.0.4
build on April 15, 2012
New features:
  • Multiplanar reconstructions.
  • PET-CT fusion (other types of images can be also fused, e.g. DWI and conventional MRI sequences).
  • Screen splitting with a predefined column/row number (drag and drop series thumbnail images into viewports).
  • DICOM tags inspection window.
  • Angle measurement.
  • Cobb angle measurement.

Improvements and bug fixes:
  • Crash reporting tool.
  • More keyboard shortcuts (series navigation - Home/End, tool selection - C/B/M/W/Z).
  • Middle mouse button adjusts window level/width.
  • Support for PALETTE COLOR DICOM images.
  • Improved support for JPEG DICOM images.
  • Auto synchronization on/off switch.
  • Display cross-reference lines on/off switch.
  • ROIs drawn with an outline for better visibility on brighter backgrounds.
  • Movable ROI text labels.
  • The installer supports silent setup mode.
  • Improved look of certain dialog windows when using non-standard DPI settings.
  • Ellipse tool shows minimum and maximum values in covered area.
  • More zoom presets added - 200, 400 and 800%.
  • Other minor features and many bug fixes.

RadiAnt DICOM Viewer 0.50.4
build on September 3, 2011
New features:
  • Export to movie files (WMV).
  • Export all opened series at once.
  • Support for DICOM overlays.
  • Show/hide annotations using button or shortcut (F12).

Improvements and bug fixes:
  • Faster image operations (zooming, panning) and lowered memory usage, especially with larger (CR, DX, MG) images.
  • Date and time formatted using local system settings.
  • Zooming using Ctrl + Mouse Wheel.
  • Menu items for adding images to the thumblist without clearing it.
  • DMZ files (zipped DICOMs) association with RadiAnt.
  • ZIP files can be opened from Explorer using right click and "Open with" menu item.
  • Improved CINE display efficiency (interface was freezing with multiple cine runs at the same time).
  • Improved drag and drop (zip files, drop on the RadiAnt icon).
  • Improved patient sorting in the thumblist.
  • Improved drawing of certain types of images (e.g. dose reports).
  • Improved color images display.

Displayed are only builds available for download.