Core DICOM Viewer
DICOM review with window/level, zoom, pan, MPR, vessel profile, blooming/stenosis diameter tools, and ZIP exports.
Radiology research software
HAGRad
Heart Analysis Gateway for Radiologic Research and Development
An open-source local DICOM research environment for image review, multi-planar reformation, quantitative measurement, reconstruction comparison, image-quality analysis, QCA prototyping, EAT quantification, and CT phantom noise-power research.
Research Use Only. This software is not intended for clinical diagnosis, treatment decisions, or patient care.
Modules
Focused workflows for radiology and imaging research
The core viewer stays familiar while specialized measurements are separated into modules that can evolve independently.
CCTA Image Quality
Objective coronary CTA ROI measurements, subjective reader scoring, editable protocols, SNR/CNR metrics, and structured export.
Noise Power
CT phantom square ROI statistics, circular NPS placement, multi-reconstruction noise-power comparison, TTF metrics, and export bundles.
Epicardial Adipose Tissue
Pericardial contouring, HU thresholding, multi-reconstruction comparison, and measurement export for EAT research.
Quantitative Coronary Angiography
Invasive angiography frame selection, vessel segmentation workflow, stenosis measurements, and research export bundles.
Screenshots
Visual workflow examples
Representative screenshots show how image review becomes structured research output.
EAT Summary
Epicardial adipose tissue summary report with volume, density, review coverage, and segmented representative slices.
Core Viewer
Axial CT review with editable measurement overlays and quantitative stent-lumen profile analysis.
CCTA IQ
Objective image-quality comparison across coronary CTA reconstructions using ROI attenuation and noise measurements.
CCTA IQ Summary
Per-reconstruction output with representative ROIs, objective signal/noise graphs, and subjective quality scoring.
Noise Power
CT phantom NPS workflow with synced circular ROI placement, square sampling, reconstruction comparison, and export-ready noise-power metrics.
QCA
Still-frame invasive angiography analysis with vessel overlay, stenosis measurements, and diameter profile output.
Non-Calcified Plaque Profile
Line-profile analysis of the plaque-lumen interface to compare non-calcified plaque appearance across reconstruction kernels.
Demo video
Demo videos
Case demonstrations showing imaging analysis workflows in action.
Analyze Stent-Lumen Profiles
Review the workflow directly on the page or open the video file for full-screen playback.
Analyze Invasive Angiography With QCA
Review the quantitative coronary angiography workflow directly on the page or open the video file for full-screen playback.
Downloads
Download HAGRad Viewer
Choose the package for your research workstation. HAGRad Viewer runs locally, keeps DICOM files on your computer, and opens from one app icon after download.
macOS package
Download file: HAGRad-Viewer-macOS.dmg
- Open the DMG.
- Double-click
HAGRad Viewer.app. - First launch only: if macOS shows "HAGRad Viewer" Not Opened, click Done. Open System Settings > Privacy & Security, scroll to Security, then click Open Anyway for HAGRad Viewer and confirm.
Windows package
Download file: HAGRad-Viewer-Windows.zip
- Right-click the downloaded zip and choose Extract All.
- Open the extracted folder, then double-click
HAGRad Viewer.exe. - First launch only: if Windows SmartScreen appears, choose More info, then Run anyway if you downloaded it from this page.
The executable bundles the launcher runtime, starts the local server, and uses localhost HTTP when HTTPS certificates are unavailable.
Release archive
Use GitHub releases for release notes, source archives, demo media, license information, and earlier research-preview builds.
The packaged downloads are intended for normal users; source archives are intended for developers and reviewers.
Research use only. HAGRad is not a clinical product or medical device.
If launch fails, the app displays a message and writes logs to
~/Library/Logs/HAGRad Viewer/ on macOS or
%LOCALAPPDATA%\HAGRad Viewer\logs\ on Windows.
Citation
Citation placeholder
A manuscript citation and DOI will be added once available.
Hagar T. HAGRad: Heart Analysis Gateway for Radiologic Research and Development.
Version 0.9.0 research preview. 2026.
Repository: https://github.com/mt-hagar/hagrad-viewerOur mission
Heart Analysis Gateway for Radiologic Research and Development
Heart Analysis Gateway for Radiologic Research and Development (HAGRad) was developed as an open-source platform founded on the belief that advanced radiology research and education can become more accessible, reproducible, collaborative, and engaging. Built through more than 1,000 hours of development, refinement, debugging, testing, and real-world research use, the platform was designed to inspire and empower the next generation of researchers, physicians, engineers, and students by transforming complex image analysis into structured, supervised, and educationally meaningful research experiences.
Through synchronized reconstruction comparison, quantitative quality-control workflows, exportable structured outputs, and transparent analytical pipelines, the platform aims to modernize mentoring, facilitate scientific onboarding, and foster reproducible research practices within radiology and imaging science. By combining open-source accessibility with educational and research-oriented workflow design, the project seeks to accelerate innovation in imaging science while strengthening mentorship, collaboration, and long-term engagement in academic radiology and imaging research.
Please feel free to contact us with any questions, ideas, feedback, or interest in collaboration. If you would like to support our mission and the continued development of open-source radiology imaging research tools, please consider using the Support button to buy us a coffee. Thank you for supporting independent scientific innovation and education.
Credits
With Gratitude
I would like to thank my wonderful wife for all her support and patience. I love her deeply, and her encouragement has meant so much throughout this work. May Allah preserve her, bless her, and reward her with goodness.
She is also a chef behind Jenan Land, where she shares fantastic recipes. A good first stop is her Burnt Basque Cheesecake with Berry Compote.
