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3D scanning in hair clinics
Until recently, hair diagnosis depended on calibrated rulers, magnifying glasses, and clinician experience. Today, 3D scalp scanning via LiDAR or multi-image photogrammetry generates a precise three-dimensional model of the patient in minutes.
What is 3D hair scanning?
3D hair scanning generates a digital model of the scalp with:
- Exact geometry: curves, prominences, irregularities of baldness
- Density data: follicles per cm2 in each zone
- Objective measurements: total area, recipient area, available donor zone
- Temporal comparison: difference between scans over time
3D reconstruction of the scalp
3D capture technologies
LiDAR (iPhone Pro / iPad Pro)
- Precision: ±1 mm in area of interest
- Advantage: no additional hardware required
- Ideal for: consultations, frequent follow-ups
- Software: TrichoSuite uses the native iOS LiDAR sensor
Multi-image photogrammetry
- Process: 20-40 photos of the scalp from different angles
- Precision: ±0.5 mm
- Advantage: works with any camera
- Ideal for: high-quality clinical documentation
Dedicated hardware (Artec 3D, Creaform)
- Precision: ±0.05 mm
- Advantage: higher texture resolution
- Disadvantage: cost EUR 40,000-100,000
- Ideal for: high-volume clinics
Clinical applications of 3D
1. Precise graft calculation
Before 3D, graft calculation was an estimate based on rulers and visual experience. With 3D scanning:
- Recipient area measured in cm2 with precision
- Target density calculated per zone (30-60 FU/cm2)
- Exact number of needed grafts estimated
- Donor zone verified to supply them
2. Donor zone mapping
The donor zone doesn't have the same density everywhere. 3D scanning identifies:
- Higher density zones (priority extraction)
- Lower density zones (protect)
- Estimation of lifetime available graft bank
3. 3D distribution planning
The surgeon can visualize the proposed graft distribution in 3D before surgery:
- See frontal hairline design on the patient's actual model
- Simulate different densities per zone
- Adjust the plan until desired natural result is achieved
4. Objective post-operative follow-up
3D scans at follow-up milestones (1m, 3m, 6m, 12m) allow:
- Comparing actual coverage vs original planning
- Measuring density gained per zone in follicles/cm2
- Detecting growth problems early
- Generating objective reports for the patient
Longitudinal tracking with volumetric scanning
Impact on patient conversion
Showing patients a 3D model of their scalp and a per-zone estimate before they sign the quote gives them a concrete reference to decide. We do not publish conversion figures: each clinic should measure its own before and after adopting the tool.
Integration with TrichoSuite
TrichoSuite integrates the complete 3D scanning pipeline:
- Capture with iPhone LiDAR or upload existing model
- Automatic processing (Apple Object Capture / COLMAP / Meshroom)
- Interactive 3D visualization in the browser
- Graft calculator integrated with the model
- Temporal comparison between scans
- Export of clinical reports in PDF
Conclusion
3D scanning has gone from a niche technology to an accessible clinical tool. Clinics that adopt it not only plan better: they close more surgeries, have more satisfied patients, and differentiate from the competition.
Which clinic pain it addresses
Measuring instead of eyeballing backs up the quote (The quote that never closes) and leaves a shared reference for follow-ups (The cost of a scattered patient record). How it is done: 3D scalp scanning with LiDAR.