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| Software | Platform | Pro Features (Free) | Limitation | |----------|----------|---------------------|-------------| | | Web/Windows/Mac | MPR, 3D, measurements, annotations | Requires internet setup (self-host or use demo) | | 3D Slicer | Windows/Mac/Linux | Advanced 3D, segmentation, RT, even surgical planning | Steeper learning curve | | Horos (Mac only) | macOS | Full medical imaging toolkit, fast and polished | No Windows/Linux version | | Weasis | Windows/Linux/Mac | DICOM web access, measurements, reports | Older interface | reports | Older interface |