IRPrep — Mobile Ablation Planning for IR

What it does

IRPrep is a mobile-native percutaneous ablation planning tool that runs as a browser PWA. The operator points a phone at the PACS monitor and records while scrolling, picks the relevant slices, outlines the lesion by touch, enters AP, transverse and CC diameters, and gets volume and a probe-count estimate back automatically.

Existing planning software is workstation-locked and DICOM-import dependent, so in practice operators fall back on mental math at the table. This is built for the table.

The six-step workflow

• Capture: phone-to-PACS screen recording with change-detection auto-capture.
• Select the slices that matter.
• Draw the lesion outline by touch, with pinch-to-zoom.
• Measure AP, transverse and CC.
• Plan approach windows and probe trajectories.
• Analyze coverage.

What the analysis gives you

• Volume and probe count calculated from the entered diameters, with oblique angulation compensation on the probe-count estimate.
• A real-time coverage heat map with additive blending.
• Margin analysis reporting the thinnest margin in millimeters and the percentage of lesion border falling outside coverage.
• Trajectory validation for probe spacing and parallelism, plus approach windows defining safe entry corridors.
• Presets for common ablation platforms — Emprint, NeuWave, Solero, ICE3, Visual-ICE, Cool-tip, and custom. GigHz has no affiliation with those manufacturers.
• Built-in procedure timers for cryo, microwave and RFA protocols, and annotated PNG export for documentation.

Technical notes

Runs as a PWA on Cloudflare edge and works offline after first load. The interface is dark by default, tuned for reading room and procedure suite lighting.

Privacy and data handling

Images stay on the device and are not uploaded — with one exception: the optional AI segmentation feature sends the selected image out for processing. If that matters for your setting, do not use it.

Do not enter patient identifiers.

For educational reference only. Clinical decisions require the physician's judgment of the individual patient. This tool supports that judgment; it does not replace it.

Written and reviewed by Pouyan Golshani, MD — February 2026