# Technique learning maps — EN

> Learning aid (Obsidian). Verify anatomy/safety before practice.
>
> **Canonical mnemonics → `mnemonics.md`** · recall deck (spaced repetition) → `recall.md`.

## 0. Master idea
**Three layers: (1) assessment/mapping, (2) injection method, (3) anatomy/safety.** Master the plane +
the danger zones first; the named systems are just organised ways to do it.

```mermaid
mindmap
  root((Technique))
    Assessment / mapping
      MD Codes de Maio - coded points per zone
      BeautiPHIcation Swift - phi golden ratio
      8-point lift Allergan
      Fat compartments Rohrich-Pessa
    Injection method
      Bolus - deep single deposit
      Microbolus / microdroplet
      Linear threading
      Fanning · cross-hatching
      Retrograde vs anterograde
      Tower · dual-plane
    Tool
      Needle - precise
      Cannula - blunt, safer for vessels
      Aspiration debate
    Anatomy / safety
      Supraperiosteal = safest deep plane
      Danger zones Cotofana - glabella, nose, tear trough
      BAP Bio-Aesthetic Points Profhilo
    Named
      Russian lips
      Nefertiti lift jaw/neck
      Fern pattern skin
```

## 1. Method cheat
| Method | What | When |
|---|---|---|
| Bolus | one deep deposit | supraperiosteal volume (cheek, chin) |
| Microbolus | tiny aliquots | dynamic zones, tear trough |
| Linear threading | back-fill a line | folds, lips |
| Fanning | multiple lines, one entry | broad areas |
| Cannula | blunt, moves past vessels | high-risk zones, less bruise |
| Needle | precise placement | fine detail, small volumes |

## 2. Name-decode + mnemonics
```mermaid
mindmap
  root((Names))
    MD Codes = de Maio coded GPS points
    BeautiPHIcation = beauty + PHI golden ratio
    BAP = Bio-Aesthetic Points fixed dots
    Nefertiti = queen profile = jaw/neck lift
    Russian lips = heart-shape vertical technique
```
- **MD Codes** = "GPS points" per zone → product per code (Juvéderm).
- **BeautiPHIcation** = **PHI = golden ratio** (Swift) → shape before volume.
- **Cannula = blunt/safer** (glides past vessels), **needle = precise**.
- **Supraperiosteal = deepest, safest** plane for boluses.
- **Danger zones = glabella / nose / tear trough** (vascular → blindness/necrosis risk).
- **Aspirate + low pressure + small aliquots** = the safety trio.

## 3. In the xlsx
`technique-map.xlsx` → Catalogue sorts by **Product class**. See Zone × Technique + the Swift sheet.