Radiology research software

HAGRad

Heart Analysis Gateway for Radiologic Research and Development

A 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.

Availability Contact us

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.

Core viewer

Core DICOM Viewer

DICOM review with window/level, zoom, pan, MPR, vessel profile, blooming/stenosis diameter tools, and ZIP exports.

CCTA IQ

CCTA Image Quality

Objective coronary CTA ROI measurements, subjective reader scoring, editable protocols, SNR/CNR metrics, and structured export.

Physics

Noise Power

CT phantom square ROI statistics, circular NPS placement, multi-reconstruction noise-power comparison, TTF metrics, and export bundles.

EAT

Epicardial Adipose Tissue

Pericardial contouring, HU thresholding, multi-reconstruction comparison, and measurement export for EAT research.

QCA

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.

CCTA IQ summary comparing VMI reconstructions with representative ROIs, statistical graphs, and subjective image-quality scores.

CCTA IQ Summary

Per-reconstruction output with representative ROIs, objective signal/noise graphs, and subjective quality scoring.

Noise Power workflow showing circular NPS placement, square ROI sampling, phantom image review, noise-power curves, and reconstruction metrics.

Noise Power

CT phantom NPS workflow with synced circular ROI placement, square sampling, reconstruction comparison, and export-ready noise-power metrics.

QCA report showing an invasive coronary angiography still frame, vessel overlay, measurement table, and diameter profile for stenosis analysis.

QCA

Still-frame invasive angiography analysis with vessel overlay, stenosis measurements, and diameter profile output.

Viewer comparison of non-calcified plaque-lumen line profile analysis across Bv60 and Qr40 reconstruction kernels.

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.

Availability

Public downloads are unavailable

HAGRad is currently maintained privately. The source repository and software packages are no longer publicly accessible. For research inquiries, please contact us.

HAGRad runs locally and keeps DICOM files on your computer.

Existing macOS copies

Previously distributed research-preview builds are unsigned.

  1. Open the DMG.
  2. Double-click HAGRad Viewer.app.
  3. 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.

Existing Windows copies

Previously distributed research-preview builds are unsigned.

  1. Right-click the downloaded zip and choose Extract All.
  2. Open the extracted folder, then double-click HAGRad Viewer.exe.
  3. First launch only: if Windows SmartScreen appears, choose More info, then Run anyway only for a copy previously obtained from the official HAGRad release.

The executable bundles the launcher runtime, starts the local server, and uses localhost HTTP when HTTPS certificates are unavailable.

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 0.9.5 research preview. 2026.
Website: https://www.hagrad.org/

Our mission

Heart Analysis Gateway for Radiologic Research and Development

Heart Analysis Gateway for Radiologic Research and Development (HAGRad) was developed as a research 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 local image analysis 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.