ADD-ONS / SCALES
The ARWMC Rating Scale
Created 25/11/2021, last revision 19/01/2023
ARWMC (Age Related White Matter Changes)
|
White matter lesions (WML)
|
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| 0 | no lesion (including symmetrical, well-defined caps or bands) |
| 1 | focal lesions |
| 2 | an incipient confluence of lesions |
| 3 | diffuse involvement of the entire region, with or without the involvement of U fibers |
| Basal ganglia lesions | |
| 0 | no lesion |
| 1 | 1 focal lesion (≥ 5 mm) |
| 2 | > 1 focal lesion |
| 3 | confluent lesions |
- white matter lesions (WMLs) on MRI are defined as bright (hyperintense) lesions ≥ 5 mm on T2, PD, or FLAIR images
- WMLs on NCCT are defined as hypodense areas ≥ 5 mm
- the following areas are scored (each hemisphere separately):
- frontal
- parieto-occipital
- temporal
- infratentorial, including the cerebellum
- basal ganglia (striatum, globus pallidus, thalamus, internal and external capsule, and insula)
- FAZEKAS scale is easier to use in routine clinical practice
