Table 1.
Types of microcirculation assessment devices.
| Technical device | Device | Anatomical site | Characteristics |
|---|---|---|---|
| Handheld Vital Microscopy (HVM) -Orthogonal polarization | OPS | Sublingual | Pressure artifacts can distort the image |
| -Sidestream dark field | SDF | Buccal mucosa | |
| -Incident dark field | IDF | Skin Ear |
|
| Laser doppler perfusion imaging (20) | Flowmetry Perfusion |
Non-contact measurements Sensitive to motion artifacts |
|
| Laser speckle contrast imaging | Non-contact measurements Sensitive to motion artifacts |
||
| Capillaroscopy | Nailbed | ||
| SDF software (GlycocCheck©) (21) |
Measures Glycocalyx |
Sublingual | Measures endothelial glycocalyx thickness Microvascular vessel density Red blood cell filling percentage Reported as perfused boundary region (PBR) |