| PPTR | pulsed photothermal radiometry |
| KTP | potassium titanyl phosphate |
| Nd:YAG | neodymium-doped yttrium aluminum garnet |
| DRS | diffuse reflectance spectroscopy |
| HSI | hyperspectral imaging |
| NIR | near-infrared |
| IUC | integral under curve |
| MRI | magnetic resonance imaging |
| US | ultrasound |
| OCT | optical coherence tomography |