Fibroid and anatomical characteristics to consider when preferring UAE to other options.

Table 4: Fibroid and anatomical characteristics to consider when preferring UAE to other options.

	Fibroid characteristics	Anatomical considerations
Non-responsive	Fibroids not enhancing on contrast MRI: Are already degenerated and will not be affected by embolization	Individualized decision based on single patient, e.g. a common arterial supply to ovaries and uterus that does not allow a selective embolization of the fibroids sparing the ovaries.
Less responsive	Broad ligament fibroids
	Cervical fibroids, for the possible collateral flow from the cervical blood supply
	Pedunculated subserosal fibroids if stalk diameter is at least 50% narrower than the diameter of the tumor
	Intracavitary fibroids