Horos Software

No tool is perfect. Before downloading, consider these drawbacks:

To generate a useful report in Horos, you can leverage its built-in PDF reporting tool or extend its capabilities through the Horos Cloud Reporting service for more professional, shared results. Horos Project Using the Built-In Reporting Tool

The standard Horos software includes a simple reporting feature that creates reports in PDF format. To make these reports "useful" for clinical or research purposes, you should: purview.net Capture Key Images

: Use the software to identify and capture specific images that highlight diagnostic findings. Add Annotations

: Include measurements, descriptive text, or identifiers directly on the images to provide clarity for referring physicians or patients. Save as PDF

: Finalize the findings into a professional document that can be printed or emailed. Horos Project Enhancing Reports with Horos Cloud For more advanced needs, Horos Cloud Reporting (a paid subscription service) offers additional features: Horos Project Personalized Templates

: Create and save custom reporting templates to ensure consistency and speed in your workflow. Electronic Sharing

: Instead of shipping physical media, you can securely share reports and associated studies via the cloud. Professional Branding

: Generate reports that include your practice’s logo and specific diagnostic fields, which is often used by specialty clinics like equine veterinarians Specialized Technical Reports If your report requires specific data, such as tumor volumetric analysis , you can generate technical findings by: PubMed Central (PMC) (.gov) Opening the Region of Interest (ROI) drop-down tool.

Outlining the area (e.g., a tumor) across multiple slices using the Close Polygon ROI Volume Compute Volume

Horos is a free, open-source medical imaging software primarily used as a DICOM viewer for macOS. It was developed based on the open-source version of OsiriX (specifically version 5.8) after that software transitioned to a more restrictive commercial model. Key Features and Use Cases

Medical Image Viewing: It allows clinicians and researchers to view and manipulate images from various modalities, including CT, MRI, PET-CT, and Ultrasound.

3D Reconstruction: Horos is widely used for 3D volumetric rendering, which helps surgeons simulate operative trajectories and plan complex procedures like craniotomies or tumor removals.

Research and Deep Learning: Researchers use it to annotate and label medical datasets—such as CT-angiograms for pulmonary embolism—to train deep learning models.

Forensic and Anatomical Analysis: It is used in specialized fields for tasks like measuring facial soft tissue thickness in forensic reconstructions or analyzing genetic mouse models for congenital heart disease. Critical Considerations

Platform Specificity: Horos is designed strictly for 64-bit macOS systems. horos software

Regulatory Status: While functionally powerful, it is often noted that Horos does not have FDA or CE Marking for diagnostic use. As a result, it is frequently used for research, teaching, or as a secondary tool rather than the primary diagnostic workstation in some regulated medical environments.

The project is hosted and maintained by the Horos Project, which also provides a comprehensive user guide and educational resources through the Horos Academy.

Feature Name: Advanced Lesion Detection and Tracking

Description: Enhance the Horos software with an advanced lesion detection and tracking feature, allowing radiologists to more accurately and efficiently identify and monitor lesions over time.

Key Features:

Benefits:

Technical Requirements:

Development Roadmap:

Target Audience:

Generating a report in Horos, the free open-source DICOM viewer for macOS, typically involves using its built-in reporting tools or the Horos Cloud service to create professional summaries that include key images and diagnostic findings. Creating Reports in Horos

Built-in Reporting: You can capture key images and annotations from a study to generate a personalized report. This is often used by radiologists to communicate diagnostic information clearly to referring physicians and patients.

Horos Cloud Reporting: For more advanced sharing, Horos Cloud offers a tiered subscription service (Basic, Standard, Pro) that allows you to create, store, and download reports in PDF format. These reports can be easily shared via the cloud or email.

Template Usage: The software supports customizable templates, which help streamline your workflow and ensure reports have a professional, branded look.

DICOM Integration: Reports and studies can be coordinated and saved together as DICOM files for easy management. General Process

Select Study: Open your desired study in the Horos DICOM viewer. No tool is perfect

Capture Key Images: Use the annotation and measurement tools (like ROI) to identify significant findings.

Generate Report: Access the reporting feature (often via a plugin or cloud interface) to compile these findings into a document.

Save or Share: Once generated, reports can be downloaded as PDFs, printed, or shared securely through the Horos Cloud. Important Considerations Radiology Reports with Key Images Improve Communication

Horos is a free, open-source medical image viewer for macOS, based on the popular OsiriX project. While "Horos" itself is a software package rather than a single research paper, it is frequently cited in academic literature as a primary tool for 3D reconstruction preoperative planning data annotation in medical imaging research. ResearchGate

Below are key academic papers and resources that provide a "deep dive" into the software's application across different medical fields. 1. Primary Methodology & Use Case Papers

These papers illustrate how Horos is integrated into clinical and research workflows: Virtual Preoperative Planning 2023 paper in Surgical Neurology International

details the use of Horos for 3D tumoral reconstruction and virtual surgical planning, highlighting its utility as a free alternative for neurosurgeons. 3D Printing & Modeling : A review of Three-Dimensional Printing in Neurosurgery

discusses the specific algorithm used to move from DICOM data to 3D printed models using Horos in combination with Blender and Cura. Virtual Bronchoscopy : Research on Virtual Bronchoscopy using Horos

demonstrates how the software's 3D rendering capabilities are used to navigate the airway virtually for diagnostic purposes. ResearchGate 2. Technical Capabilities

Research often focuses on these specific functions within Horos: DICOM Rendering

: Horos is widely used to visualize multi-planar reconstructions (MPR) and volume rendering (VRT) for forensic and anthropological analyses. Segmentation & AI Training

: Many "deep learning" papers use Horos as the "ground truth" tool where expert radiologists manually annotate images to train neural networks. Parameter Mapping : Specialized studies, such as those from Stanford University

, utilize Horos for examining perfusion images and Tmax maps in stroke research. Stanford CS230: Deep Learning 3. Core Software Resources

If you are looking for the "foundational" documentation or the official project home: Official Website Horos Project

provides the latest software versions and community-driven documentation. Source Code To generate a useful report in Horos, you

: As an LGPL-licensed project, the underlying code and architectural details are available on Comparison with OsiriX

: Since Horos is a fork of OsiriX, many foundational papers for OsiriX also apply to Horos’s core DICOM engine and plugin architecture. PubMed Central (PMC) (.gov) specific application

of Horos, such as in neurosurgery or cardiovascular imaging? (PDF) Virtual bronchoscopy using Horos - ResearchGate Virtual Bronchoscopy using Horos.pdf. ResearchGate

To get the most out of Horos software, implement these pro tips:

Problem: "Horos is damaged and can't be opened."

Problem: Horos is slow when rendering 3D.

Problem: Cannot connect to PACS.

In the rapidly evolving world of medical imaging, the ability to view, analyze, and share DICOM (Digital Imaging and Communications in Medicine) files efficiently is paramount. While many proprietary solutions exist, they often come with hefty price tags, restrictive licensing, or hardware limitations. Enter Horos software—a free, open-source medical image viewer specifically designed for macOS.

Born as a continuous evolution of OsiriX (one of the most popular DICOM viewers), Horos was created to provide a fully compliant, open-source solution under the LGPL license. For radiologists, veterinarians, researchers, and even medical students, Horos software offers a powerful, NIH-funded alternative to expensive imaging suites.

But what makes Horos stand out in a crowded field of DICOM viewers? This article dives deep into its features, installation process, use cases, and how it compares to competitors.

What it is Horos is an open-source medical image viewer for macOS that supports DICOM standards. It’s designed for clinicians, radiologists, and researchers to view, analyze, and manage medical imaging studies (CT, MRI, ultrasound, PET, etc.).

This is the most common question among new users. Here is the breakdown:

Verdict: If you need FDA-cleared software for formal patient diagnosis in a US hospital, you must buy OsiriX MD or another commercial product. If you are a student, researcher, veterinarian, or working in a non-diagnostic capacity, Horos is nearly identical and completely free.

Double-click a thumbnail in the database to open the viewer.