ONIS

Horos is a free, open source medical image viewer for macOS designed to support the medical imaging community with a fully functional, 64-bit DICOM viewer. Built on OsiriX 5.8, Horos is intended for research, education, and non-diagnostic medical imaging use. It supports a wide range of DICOM files and includes powerful tools such as 2D/3D multi-planar reconstruction, surface and volume rendering, and maximum intensity projection. Horos enables users to view, import, and export studies, measure anatomical structures, annotate images, and apply filters or adjustments for better visualization. It also offers anonymization tools, DICOM Query/Retrieve from PACS servers, and support for plugins and scripting for advanced customization. The interface is intuitive and adaptable for both novice and experienced users, with integration options for teaching files and educational workflows.

PostDICOM is a cloud-based, zero-footprint DICOM viewer and medical image management solution that allows users to view, store, and share DICOM files easily through any modern web browser. It supports a wide variety of modalities including CT, MRI, ultrasound, PET, and X-ray, and enables users to access studies from anywhere without the need for additional software installations. PostDICOM includes robust features such as 2D and 3D image viewing, MPR (multiplanar reconstruction), and image fusion. Users can annotate images, take measurements, adjust brightness/contrast, and apply window leveling. It also offers a teaching file management system for educational purposes, enabling users to create and manage teaching cases. With PostDICOM, medical professionals can collaborate through shared workspaces and control access permissions for other users. It includes tools for patient data anonymization and complies with HIPAA standards to ensure data security and privacy.