Ablation Planning, Simplified
The first mobile-native ablation planning tool built for interventional radiologists. Capture CT images, outline the lesion, enter measurements, and get an instant probe plan with coverage analysis — all from your phone, in under a minute.
Progressive web app — no install required. Works on any device.
The Problem
Ablation planning today is fragmented. You eyeball the CT, estimate margins in your head, and mentally map probe trajectories while scrubbed at the table. Planning software exists, but it's locked to workstations, requires DICOM imports, and takes longer than the mental math it replaces.
For a 3.5cm renal mass that needs three probes with 5mm margins, the difference between a well-placed and a poorly-placed probe array is the difference between complete ablation and a positive margin on follow-up imaging.
And yet, most operators plan these cases in their heads.
How IRPrep Works
A streamlined workflow from CT image to ablation plan.
Capture
Point your phone at the PACS monitor and record as you scroll. IRPrep auto-captures frames with change detection, filtering out duplicates.
Select
Pick the slices that matter. Thumbnail grid with tap-to-select. Just the ones showing the lesion and surrounding structures.
Draw
Outline the lesion with touch drawing. Pinch-to-zoom for precision. Copy contours forward to speed up multi-slice annotation.
Measure
Enter AP, transverse, and craniocaudal diameters from PACS. IRPrep calculates volume and optimal probe count for your selected device.
Plan
Draw approach windows (safe entry corridors) and probe trajectories. IRPrep validates spacing, parallelism, and coverage.
Analyze
Toggle the coverage heat map to visualize ablation zone overlap and thin margins. Export annotated PNG for documentation.
Features
Everything you need for percutaneous ablation planning.
Core Planning
- Automatic frame capture with change detection
- Touch-based lesion contouring with pinch-to-zoom
- Copy contour to next slice
- Volume calculation (ellipsoid model)
- Axial, coronal, and sagittal orientation support
Probe Planning
- Emprint, NeuWave, Solero, ICE3, Visual-ICE, Cool-tip, Custom
- Probe count estimation with oblique angulation
- Optimal axis alignment suggestion
- Configurable ablation margins (5mm, 10mm)
Coverage Analysis
- Real-time coverage heat map overlay
- Additive blending shows overlap intensity
- Margin analysis reports thinnest margin in mm
- Flags percentage of lesion border outside coverage
Procedure Timer
- Cryoablation: Freeze-Thaw-Freeze cycles
- Microwave and RFA protocols
- Phase auto-advance with haptic alerts
- Modality-specific checklists
Who It's For
Interventional Radiologists
Performing percutaneous renal, liver, lung, or bone ablation. Whether 5 cases a year or 200.
Surgical Oncologists
Who perform laparoscopic or open ablation and want a quick planning reference at the point of care.
IR Fellows & Trainees
Learning ablation planning. Visual feedback teaches spatial reasoning that takes years to develop.
Device Reps
Who support cases and help operators visualize coverage with their specific probe dimensions.
Why It Matters
Speed
A complete ablation plan in under 60 seconds. No DICOM import, no workstation login, no software to install.
Coverage Confidence
The heat map and margin analysis catch thin margins that mental math misses. "Your posterior-medial margin is only 3mm" prevents positive margins on follow-up.
Documentation
The annotated image export creates an instant visual record of your plan. Screenshot it, attach it to the case, show it to the fellow.
Accessibility
Runs on any device with a camera and a browser. Works in the reading room, at the CT scanner, or at home reviewing cases.
Pricing
3 complete analyses
- ✓ Full access to all features
- ✓ Capture, drawing, planning
- ✓ Coverage analysis & heat map
- ✓ Procedure timers
- ✓ Image export
For practitioners & departments
- ✓ Everything in Free
- ✓ Unlimited analyses
- ✓ Priority support
- ✓ Department licensing available
Frequently Asked Questions
IRPrep is a progressive web app that works on any phone, tablet, or desktop browser. No app store install required. It works offline after the first load and is optimized for both dark reading room and bright procedure suite lighting.
Images stay on your device and are never uploaded unless you explicitly use optional AI segmentation features. The app runs entirely in your browser. No account required for the free tier.
IRPrep supports all major ablation platforms including Emprint MW, NeuWave MW, Solero MW, ICE3 Cryo, Visual-ICE Cryo, and Cool-tip RFA. You can also enter custom probe dimensions for any other device.
The algorithm uses elliptical cross-section modeling with oblique angulation compensation. It evaluates three possible probe alignment orientations and selects the one that minimizes total probe count — matching how experienced operators naturally plan their approach.
Yes. IRPrep works for renal, liver, lung, bone, and any other percutaneous tumor ablation. The planning workflow is anatomy-agnostic — you define the lesion contour and approach windows based on your specific case.
The heat map visualizes ablation zones at each probe tip with additive blending. Green center shows full coverage, yellow shows zone edges, and red falloff shows where margins become thin. It helps catch coverage gaps that mental math misses.
Ready to plan smarter?
Start with 3 free analyses. No account required.
Written and reviewed by Pouyan Golshani, MD, Interventional Radiologist — Last updated April 7, 2026