This package is a great starting point from which to discover ONIS 2.5. It is completely free of charge and aimed at non-professional users and radiology students. It is compatible with all modalities and all manufacturers. This version supports only a single monitor configuration and additional plugins cannot be loaded. Also, the database is limited to 15 patients. If you wish to use Onis with more than 15 patients, please consider purchasing the professional version of Onis. We believe that Onis Professional offers very good performance and functionalities for a very affordable price.

Most of the great features of ONIS 2.5 are available in the free package. However, in comparaison to the Professional and Ultimate packages, it has the following limitations:

• The database is limited to 15 patients
• Multiple monitors are not supported
• Images from a DICOM server cannot be opened "on-demand", they must be imported into the local database first
• DICOM images cannot be exported in a DICOM DIR
• Images cannot be anonymized
• No color LUT
• No Opacity table
• Images cannot be calibrated
• Additional plugins cannot be loaded

• Read and display all DICOM files from any modalities
• Multi-frame images support
• On demand" capability (can open DICOM files directly from a DICOM server, CD or a folder without downloading them into the local database first)
• Support DICOM network services (C-FIND SCU, C-GET SCU, C-MOVE SCU, C-STORE SCP/SCU)
• Single oblique MPR (Multi Planar Reconstruction)
• MIP 3D Volume rendering (Maximum Intensity Projection)
• Scout image/localizer support
• Advanced measurement tools (distance, angle, line, polyline, rectangle, polygon, oval, pen, arrow, text, ratio, orthogonal, parallel, etc...)
• Annotations can interact with the others
• Annotation focus
• Annotation export to Excel
• Synchronize series
• Cine mode (forward, backward, swing)
• Image filtering (linear and bicubic interpolation)
• Custom Window Level
• Export images in DICOM, JPEG or BMP format
• Read and write DICOM CD (DVD on vista) - DICOMDIR support
• Can define per-modality display layouts
• Full support for Japanese characters
• Creation of DICOM CD-ROMs
• Multi-threaded (multi-processors and multi-core optimization)
• Optimization for speed or low memory consumption selectable
• Windows Vista compatible

• DualCore (or better)
• 1GB memory or more
• Windows8 / Windows server / Windows 7 / Windows Vista / Windows XP SP3
• VGA card and monitor that support resolution 1024*768 or above
• 30 MB free space on hard disk