Chronic Subdural Hematoma Embolization With Detachable Coils

Inclusion criteria:

* Age ≥ 18
* Patients experiencing unilateral or bilateral non-acute subdural hematoma confirmed by CT imaging. Acute on Chronic or mixed density hematoma allowed.
* A clinical decision has been made to use coiling and/or embolics as treatment, with or without surgical debridement, independently as per standard of care and prior to enrollment in the study.
* Signed informed consent obtained by patient or Legal Authorized Representative (LAR)

Exclusion criteria:

* Primary acute SDH
* Prior MMAE in target territory
* Premorbid mRS \> 3
* Common carotid stenosis \>70% or prior carotid stent placement
* Significant medical contraindication to angiography (kidney failure/disease)
* Anatomical variations that would make MMA embolization difficult or unsafe
* Currently participating in an investigational (drug, device, etc.) clinical trial that may confound study endpoints
* Pregnancy
* Life expectancy ≤ 1 year